Series I: Patents, 1911-1939 Subseries II: International Patents, 1916-1935
Subseries I: United States Patents, 1911-1939

This subseries consists of patents issued by the United States government. There are two types of US patents, a design patent and a utility patent. A design patent refers to the visual ornamental characteristics embodied in, or applied to, an article of manufacture. A utility patent protects useful processes, machines, articles of manufacture, and compositions of matter. 1 Materials in the series consist of the actual certificates issued, official reprints by the Government Printing Office, and related materials. Patent certificates issued before May 1922 hold the original signature of the Commissioner of Patents. After this time, all patent certificates were rubber-stamped. Materials are organized by patent number; the first five patents are design patents and the rest of the patents are utility patents.

1 United States Patent and Trademark Office, "Patents Guidance, Tools & Manuals," http://www.uspto.gov/patents/resources/types/index.jsp, accessed August 8, 2010.


Box  Folder 

1 1 Design Patent No. 50585, Samuel T. Payne and John P. Tarbox, Nameplate, 4/10/1917
2 Design Patent No. 50714, Nelson W. Dalton, Aeroplane body, 5/8/1917
3 Design Patent No. 52847, Charles G. MacGregor and Henry Kleckler, Hydroaeroplane pontoon, 1/7/1919
4 Design Patent No. 53882, William Starling Burgess, Hydroaeroplane pontoon, 10/7/1919
5 Design Patent No. 55504, Glenn H. Curtiss, Aeroplane, 6/22/1920
6 Patent No. 1010842, Frederick W. Baldwin, Flying machines, 12/5/1911
7 Patent No. 1027242, Glenn H. Curtiss, Means for launching flying machines, 5/21/1912
8 Patent No. 1085575, Glenn H. Curtiss, Control mechanism for flying machines and the like, 1/27/1914
9 Patent No. 1104036, Glenn H. Curtiss, Flying machines, 7/21/1914
10 Patent No. 1108490, Glenn H. Curtiss, Flying machines, 8/25/1914
11 Patent No. 1156215, Glenn H. Curtiss, Heavier than air flying machines, 10/12/1915
12 Patent No. 1170965, Glenn H. Curtiss, Hydroaeroplanes, 2/8/1916
13 Patent No. 1195142, Henry Kleckler, Fuselage for aeroplanes, 8/15/1916
14 Patent No. 1197746, Henry Kleckler, Hydroplane wing pontoons, 9/12/1916
15 Patent No. 1204380, Glenn H. Curtiss, Flying machines, 11/7/1916
16 Patent No. 1210373, Glenn H. Curtiss, Exhaust heaters for air inlets, 12/26/1916
17 Patent No. 1210374, Glenn H. Curtiss, Hulls for flying boats, 12/26/1916
18 Patent No. 1210379, Henry Kleckler, Aileron systems, 12/26/1916
19 Patent No. 1223298, John P. Tarbox, Spoke stays, 4/17/1917
20 Patent No. 1223315, Glenn H. Curtiss, Landing gears for aircraft, 4/17/1917
21 Patent No. 1223316, Glenn H. Curtiss, Multiple control systems for prime movers, 4/17/1917
22 Patent No. 1223317, Glenn H. Curtiss, Folding wing aeroplanes, 4/17/1917
23 Patent No. 1223318, Glenn H. Curtiss, Boat hulls, 4/17/1917
24 Patent No. 1223319, Glenn H. Curtiss, Flying boat hulls, 4/17/1917
25 Patent No. 1223320, Glenn H. Curtiss and John P. Tarbox, Multiple step flying boats, 4/17/1917
26 Patent No. 1223321, Glenn H. Curtiss, Propellers, 4/17/1917
27 Patent No. 1228375, John P. Tarbox and Henry Kleckler, Universal wing post sockets, 5/29/1917
28 Patent No. 1228380, Glenn H. Curtiss, Methods and systems for operating rudders of aircraft, 5/29/1917
29 Patent No. 1228381, Glenn H. Curtiss, Hydroaero machines, 5/29/1917
30 Patent No. 1228382, Glenn H. Curtiss, Flying machines, 5/29/1917
31 Patent No. 1246010, William Starling Burgess, Inherently stable flying boats, 11/6/1917
32 Patent No. 1246011, Glenn H. Curtiss, Flying boats, 11/6/1917
33 Patent No. 1246012, Glenn H. Curtiss, Flying boats, 11/6/1917
34 Patent No. 1246013, Glenn H. Curtiss and Henry Kleckler, Balancing systems for aircraft, 11/6/1917
35 Patent No. 1246014, Glenn H. Curtiss, Hydroplane boats, 11/6/1917
36 Patent No. 1246015, Glenn H. Curtiss, Aeroplanes, 11/6/1917
37 Patent No. 1246016, Glenn H Curtiss, Flying boats, 11/6/1917
38 Patent No. 1246017, Glenn H. Curtiss, Boat type wing pontoons, 11/6/1917
39 Patent No. 1246018, Glenn H. Curtiss, Draft systems for flying boats, 11/6/1917
40 Patent No. 1246019, Glenn H. Curtiss, Flying boat hulls, 11/6/1917
41 Patent No. 1246020, Glenn H. Curtiss, Landing gear for aircraft, 11/6/1917
42 Patent No. 1246021, Nelson W. Dalton, Streamlined shock absorbers, 11/6/1917
43 Patent No. 1246022, Nelson W. Dalton, Aeroplane motor supports, 11/6/1917
44 Patent No. 1246023, Charles B. Kirkham, Aerial propeller fastenings, 11/6/1917

2 1 Patent No. 1246024, Henry Kleckler, Aeroplane furniture, 11/6/1917
2 Patent No. 1246025, Henry Kleckler, Dual interlocking controls, 11/6/1917
3 Patent No. 1246026, Henry Kleckler, Tail skid clips, 11/6/1917
4 Patent No. 1246027, Henry Kleckler, Aeroplane control surfaces, 11/6/1917
5 Patent No. 1246028, Henry Kleckler, Aeroplane wing hinges, 11/6/1917
6 Patent No. 1246029, Albert F. Zahm, Processes of solidifying and toughening the hub portion of aerial propellers and the like, 11/6/1917
7 Patent No. 1256878, Glenn H. Curtiss, Hydroaeroplane boats, 2/19/1918
8 Patent No. 1269397, Glenn H. Curtiss, Hydroaeroplane pontoons, 6/11/1918
9 Patent No. 1269570, Glenn H. Curtiss, Convertible running gear, 6/11/1918
10 Patent No. 1271386, John P. Tarbox, Assembly forms for aeroplane wings, 7/2/1918
11 Patent No. 1280760, Charles B. Kirkham, Internal combustion engines, 10/8/1918
12 Patent No. 1283529, Henry Kleckler, Fan pumps, 11/5/1918
13 Patent No. 1283684, Glenn H. Curtiss, Flying boat cruisers, 11/5/1918
14 Patent No. 1283803, Charles B. Kirkham, Crank case main bearings, 11/5/1918
15 Patent No. 1284250, Glenn H. Curtiss, Valve operating systems, 11/12/1918
16 Patent No. 1284906, Henry Kleckler, Hydro landing bases for aircraft, 11/12/1918
17 Patent No. 1284907, Henry Kleckler, Landing gear for aircraft, 11/12/1918
18 Patent No. 1285021, William Starling Burgess, Aeroplane wing construction, 11/19/1918
19 Patent No. 1285229, Henry Kleckler and Charles G. MacGregor, Flying boat hulls, 11/19/1918
20 Patent No. 1285230, Henry Kleckler and Charles G. MacGregor, Hydroaeroplane pontoons, 11/19/1918
21 Patent No. 1286345, Charles B. Kirkham, Lubricating systems, 12/3/1918
22 Patent No. 1287249, Glenn H. Curtiss, Tilting wing flying boats, 12/10/1918
23 Patent No. 1237339, Charles B. Kirkham, Thrust bearings for aeronautical motors, 12/10/1918
24 Patent No. 1297341, Henry Kleckler, Handling trucks for flying boats, 12/10/1918
25 Patent No. 1289683, Glenn H. Curtiss, Flying boats, 12/31/1918
26 Patent No. 1290000, Albert F. Zahm, Calculators, 12/31/1918
27 Patent No. 1290004, Paul G. Zimmermann, Aeroplane fittings, 12/31/1918
28 Patent No. 1290005, Paul G. Zimmermann, Fuselage covers, 12/31/1918
29 Patent No. 1290102, Nelson W. Dalton, Landing gear construction, 1/7/1919
30 Patent No. 1290235, Henry Kleckler, Triplanes, 1/7/1919
31 Patent No. 1290236, Henry Kleckler, Tail skids for aeroplanes, 1/7/1919
32 Patent No. 1290237, Henry Kleckler, Engine bed mountings, 1/7/1919
33 Patent No. 1290838, Henry Kleckler, Aeroplane construction, 1/7/1919
34 Patent No. 1291678, Henry Kleckler, Wing construction, 1/14/1919
35 Patent No. 1294389, Henry Kleckler, Hydroaero machines, 2/18/1919
36 Patent No. 1294412, Glenn H. Curtiss, Twin fuselage construction, 2/18/1919
37 Patent No. 1294413, Glenn H. Curtiss, Autoplanes, 2/18/1919
38 Patent No. 1294414, Glenn H. Curtiss and William L. Gilmore, Hulls for flying boats, 2/18/1919
39 Patent No. 1294415, Glenn H. Curtiss and William L. Gilmore, Flying boats, 2/18/1919
40 Patent No. 1294474, Charles B. Kirkham, Motor cooling system, 2/18/1919
41 Patent No. 1294475, Charles B. Kirkham, Exhaust manifolds, 2/18/1919
42 Patent No. 1294476, Henry Kleckler, Duplex V-strut landing gear, 2/18/1919
43 Patent No. 1294477, Henry Kleckler, Tail skids for aeroplanes, 2/18/1919

3 1 Patent No. 1295084, Glenn H. Curtiss, Aeroplane construction, 2/18/1919
2 Patent No. 1296630, Glenn H. Curtiss, Hydroaircraft, 3/11/1919
3 Patent No. 1296667, Henry Kleckler, Wing post sockets, 3/11/1919
4 Patent No. 1296730, Paul G. Zimmermann and Henry Kleckler, Pusher hydroaeroplanes, 3/11/1919
5 Patent No. 1296770, Glenn H. Curtiss, Airplane landing gears, 3/11/1919
6 Patent No. 1296773, Nelson W. Dalton, Convertible control systems, 3/11/1919
7 Patent No. 1296774, Nelson W. Dalton, Magneto cut-off switches, 3/11/1919
8 Patent No. 1296775, Nelson W. Dalton, Aerofoil construction, 3/11/1919
9 Patent No. 1296790, William L. Gilmore and William E. Valk, Jr., Radiators for aeroplanes, 3/11/1919
10 Patent No. 1296876, John P. Tarbox, Skid structures for hydroaircraft, 3/11/1919
11 Patent No. 1298515, Henry Kleckler, Fuselage clips, 3/25/1919
12 Patent No. 1298516, Henry Kleckler, Aeroplane control bridges, 3/25/1919
13 Patent No. 1298625, Paul G. Zimmermann, Landing gear for aeroplanes, 3/25/1919
14 Patent No. 1306749, Glenn H. Curtiss, Twin-float hydroaeroplanes, 6/17/1919
15 Patent No. 1306750, Glenn H. Curtiss, Aeroplane wing trusses, 6/17/1919
16 Patent No. 1306751, Glenn H. Curtiss, Combination landing gears for aeroplanes, 6/17/1919
17 Patent No. 1306764, Henry Kleckler, Aeroplane wing hinges, 6/17/1919
18 Patent No. 1306765, Henry Kleckler, Landing gears for aircraft, 6/17/1919
19 Patent No. 1310737, William Starling Burgess, Reconnoitering hydro airplanes, 7/22/1919
20 Patent No. 1310764, William G. Mesner, Airplane wire fastenings, 7/22/1919
21 Patent No. 1310913, Clarence A. Kirkham, Motor cylinders, 7/22/1919
22 Patent No. 1310942, Nelson W. Dalton, Airplane wing construction, 7/22/1919
23 Patent No. 1311129, Henry Kleckler, Control systems, 7/22/1919
24 Patent No. 1316244, Thomas Seth Kemble, Magneto testing apparatus, 9/16/1919
25 Patent No. 1316257, Harry B. Snell, Wire bending machines, 9/16/1919
26 Patent No. 1316260, Albert F. Zahm, Vibration measures, 9/16/1919
27 Patent No. 1316277, Glenn H. Curtiss, Cruising hydroaeroplanes, 9/16/1919
28 Patent No. 1316278, Glenn H. Curtiss, Triplane speed scouts, 9/16/1919
29 Patent No. 1316279, Glenn H. Curtiss, Speed scout aeroplanes, 9/16/1919
30 Patent No. 1316280, Glenn H. Curtiss, Folding wing airplanes, 9/16/1919
31 Patent No. 1316281, Nelson W. Dalton, Propeller thrust registers for aircraft, 9/16/1919
32 Patent No. 1316908, Charles Gordon MacGregor, Flying boat hulls, 9/23/1919
33 Patent No. 1323842, Glenn H. Curtiss, Reconnoitering aeroplanes, 12/2/1919
34 Patent No. 1323843, Glenn H. Curtiss, Fuel supply systems, 12/2/1919
35 Patent No. 1323959, William Starling Burgess, Pusher triplanes, 12/2/1919
36 Patent No. 1326008, John P. Tarbox, Turnbuckles, 12/23/1919
37 Patent No. 1326010, Albert F. Zahm, Ailerons of variable aspect ratio, 12/23/1919
38 Patent No. 1326405, Charles B. Kirkham, Air heaters for aeronautical motors, 12/30/1919
39 Patent No. 1329038, Glenn H. Curtiss, Lubricating systems for traveling motors, 1/27/1920
40 Patent No. 1329336, Glenn H. Curtiss, Flying boat hulls, 1/27/1920
41 Patent No. 1329342, Henry Kleckler, Aeroplane constructions, 1/27/1920
42 Patent No. 1336405, Henry Kleckler, Airplanes, 4/6/1920

4 1 Patent No. 1336406, John P. Tarbox, Convertible multiplanes, 4/6/1920
2 Patent No. 1336632, Henry Kleckler, Aeroplane control mechanism, 4/13/1920
3 Patent No. 1336633, Henry Kleckler, Landing gears for aircraft, 4/13/1920
4 Patent No. 1336634, Henry Kleckler, Flying boats, 4/13/1920
5 Patent No. 1336649, Edward T. Musson, Wire wrapping and winding machines, 4/13/1920
6 Patent No. 1336704, Charles B. Kirkham, Aeronautical motors, 4/13/1920
7 Patent No. 1338310, Charles L. Lawrance, Lubricating systems for high-speed engines, 4/27/1920
8 Patent No. 1349676, Charles B. Kirkham, Lubrication of internal combustion engines, 8/17/1920
9 Patent No. 1349677, Henry Kleckler, Strut fittings, 8/17/1920
10 Patent No. 1351742, Glenn H. Curtiss and Henry Kleckler, Flying boat construction, 9/7/1920
11 Patent No. 1351743, Glenn H. Curtiss, Airplane wing structure trusses, 9/7/1920
12 Patent No. 1351763, Charles B. Kirkham, Aeronautical motors, 9/7/1920
13 Patent No. 1351764, Henry Kleckler, Hoisting connections for airplanes, 9/7/1920
14 Patent No. 1355736, Glenn H. Curtiss, Hydro-aircraft, 10/12/1920
15 Patent No. 1355738, Nelson W. Dalton, Aeroplane-wing structures, 10/12/1920
16 Patent No. 1355741, William L. Gilmore and Joseph F. Meade, Airplane fuselages, 10/12/1920
17 Patent No. 1355767, Joseph F. Meade and Everett Vail Church, Airplane fittings, 10/12/1920
18 Patent No. 1357950, William Starling Burgess, Airplane control surface operating braces, 11/9/1920
19 Patent No. 1357992, Thomas S. Kemble, Exhaust mufflers, 11/9/1920
20 Patent No. 1358527, Glenn H. Curtiss, Tripod flying boats, 11/9/1920
21 Patent No. 1358603, Albert F. Zahm, Hovering aeroplanes, 11/9/1920
22 Patent No. 1358605, Paul G. Zimmermann, Fuselage wiring, 11/9/1920
23 Patent No. 1363793, Charles B. Kirkham, Lubricating pumps, 12/28/1920
24 Patent No. 1363794, Charles B. Kirkham and Arthur L. Thurston, Control mechanism, 12/28/1920
25 Patent No. 1363844, Glenn H. Curtiss, Airplane fittings, 12/28/1920
26 Patent No. 1363845, Glenn H. Curtiss and William L. Gilmore, Hydro-aero machines, 12/28/1920
27 Patent No. 1363847, Nelson W. Dalton, Aeroplanes, 12/28/1920
28 Patent No. 1364425, Clayton Emmett Bedell, Flying boat hulls, 1/4/1921
29 Patent No. 1364431, Carl E. Freund, Airplane wing structures, 1/4/1921
30 Patent No. 1364614, Glenn H. Curtiss, Airplane wing construction, 1/4/1921
31 Patent No. 1368428, William L. Gilmore, Airplane fuselages, 2/15/1921
32 Patent No. 1368439, Thomas Seth Kemble, Exhaust valve springs, 2/15/1921
33 Patent No. 1368542, William Starling Burgess, Longitudinal control systems for aircraft, 2/15/1921
34 Patent No. 1368548, Glenn H. Curtiss, Aileron braking systems, 2/15/1921
35 Patent No. 1368549, Glenn H. Curtiss, Airplane construction, 2/15/1921
36 Patent No. 1368550, Glenn H. Curtiss, Triplanes, 2/15/1921
37 Patent No. 1370692, Charles B. Kirkham, Aeronautical motors, 3/8/1921
38 Patent No. 1370693, Henry Kleckler, Airplane landing gears, 3/8/1921
39 Patent No. 1373408, William Starling Burgess, Pontoon mountings for hydroaeroplanes, 4/5/1921
40 Patent No. 1373432, Charles B. Kirkham, Valve operating mechanism, 4/5/1921
41 Patent No. 1373433, Henry Kleckler, Control columns, 4/5/1921
42 Patent No. 1382387, Clayton L. Roloson, Engine bed supports, 6/21/1921
43 Patent No. 1382421, William L. Gilmore and Joseph F. Meade, Hydroairplane landing gears, 6/21/1921
44 Patent No. 1386787, Charles B. Kirkham, Pumps, 8/9/1921
45 Patent No. 1386841, Joseph G. Coffin, Methods and apparatus for making aerofoils and the like, 8/9/1921
46 Patent No. 1386846, Glenn H. Curtiss and Henry Kleckler, Fuel supply systems for aircraft and similar apparatus, 8/9/1921
47 Patent No. 1392271, Glenn H. Curtiss, Streamline wiring for airplanes, 12:00:00 AM
48 Patent No. 1392272, Glenn H. Curtiss, Airplane landing gears, 12:00:00 AM
49 Patent No. 1392276, Charles B. Kirkham, Reduction gearings, 9/27/1921

5 1 Patent No. 1392277, Charles B. Kirkham and Arthur L. Thurston, Airplane landing gears, 9/27/1921
2 Patent No. 1392278, Charles B. Kirkham and Arthur L. Thurston, Fuselages, 9/27/1921
3 Patent No. 1392279, Henry Kleckler, Flying boat hulls, 9/27/1921
4 Patent No. 1394630, Grover C. Loening, Airplanes, 10/25/1921
5 Patent No. 1394726, William L. Gilmore, Airplane fuselage, 10/25/1921
6 Patent No. 1398194, Charles L. Lawrance, Big end construction for radial motors, 11/22/1921
7 Patent No. 1398315, Ernest Hallewell Cawthra, Fuel supply and regulating systems for aircraft engines, 11/29/1921
8 Patent No. 1398330, Charles B. Kirkham, Radiators for airplanes, 11/29/1921
9 Patent No. 1401934, Albert F. Zahm, Hovering airplanes, 12/27/1921
10 Patent No. 1404617, Charles L. Lawrance, Big end constructions for motors, 1/24/1922
11 Patent No. 1404618, Charles L. Lawrance, Big end constructions for motors, 1/24/1922
12 Patent No. 1404861, Charles B. Kirkham, Lubricating devices for internal combustion engines, 1/31/1922
13 Patent No. 1404920, Albert F. Zahm, Wind tunnel balances, 1/31/1922
14 Patent No. 1405176, Albert F. Zahm, Propeller thrust and torque measures, 1/31/1922
15 Patent No. 1405177, Albert F. Zahm, Systems for testing propellers, 1/31/1922
16 Patent No. 1406575, Joseph F. Meade, Landing gears for aircraft, 2/14/1922
17 Patent No. 1406600, Albert F. Zahm, Propeller hub construction, 2/14/1922
18 Patent No. 1406617, Nelson W. Dalton, Controls for aircraft, 2/14/1922
19 Patent No. 1418131, Glenn H. Curtiss, Motive power systems for aircraft, 5/30/1922
20 Patent No. 1420609, Glenn H. Curtiss, Hydroaeroplanes, 6/20/1922
21 Patent No. 1420610, Glenn H. Curtiss, Method of getting hydroaeroplanes off the water into the air, 6/20/1922
22 Patent No. 1423334, Charles B. Kirkham, Magneto gearing, 7/18/1922
23 Patent No. 1423681, George B. Post, Airplanes, 7/25/1922
24 Patent No. 1430640, William L. Gilmore, Airplanes, 10/3/1922
25 Patent No. 1432817, Joseph Wertzheiser, Lubricating systems for high speed engines, 10/24/1922
26 Patent No. 1434547, Charles B. Kirkham and Arthur L. Thurston, Airplanes, 11/7/1922
27 Patent No. 1434559, Edward T. Musson, Wing jigs, 11/7/1922
28 Patent No. 1435139, Harvey C. Mummert, Retractable landing gears for aircraft, 11/7/1922
29 Patent No. 1437465, John A. Christen, Airplane fittings, 12/5/1922
30 Patent No. 1437466, Nelson W. Dalton, Automatic safety devices for aeronautical motors, 12/5/1922
31 Patent No. 1437469, William L. Gilmore and Theodore P. Wright, Aeroplane wing structures, 12/5/1922
32 Patent No. 1437471, Charles B. Kirkham, Propeller hub fastenings, 12/5/1922
33 Patent No. 1437861, Finley R. Porter, Fuel supply systems, 12/5/1922
34 Patent No. 1439798, Henry M. Crane, Compression relief devices for internal combustion engines, 12/26/1922
35 Patent No. 1445135, William L. Gilmore, Fighting aeroplanes, 2/13/1923
36 Patent No. 1445142, Charles B. Kirkham, Propeller mountings, 2/13/1923
37 Patent No. 1447788, Charles B. Kirkham, Lubricating devices for internal combustion engines, 3/6/1923
38 Patent No. 1454505, John A. Christen, Multiple control systems for multimotored aircraft, 5/8/1923
39 Patent No. 1463171, George J. Meade, Valve operating mechanism, 7/31/1923
40 Patent No. 1463556, Sylvanus Albert Reed, Aeronautical propellers, 7/31/1923
41 Patent No. 1465973, Glenn H. Curtiss, Triplane flying boats, 8/28/1923
42 Patent No. 1465989, Charles B. Kirkham, Aeronautical motors, 8/28/1923
43 Patent No. 1466634, John P. Tarbox, Wing shedding means for flying boats, 8/28/1923
44 Patent No. 1479993, Charles B. Kirkham, Motive power systems for aircraft, 1/8/1924
45 Patent No. 1481986, Joseph G. Coffin, Methods and apparatus for measuring altitudes, 1/29/1924
46 Patent No. 1485783, Grandison Gardner, Vertical stabilizer, 3/4/1924
47 Patent No. 1386607, Rudolph R. Reissig, Tanks and methods of making, 3/11/1924
48 Patent No. 1494787, Henry Kleckler and Glenn H. Curtiss, Tail skids for aeroplanes, 5/20/1924
49 Patent No. 1509251, Harvey C. Mummert, Wing radiator fastenings, 9/23/1924
50 Patent No. 1511666, William L. Gilmore, Twin fuselage monoplanes, 10/14/1924
51 Patent No. 1511667, William L. Gilmore, Cooling systems for the power plants of aircraft, 10/14/1924
52 Patent No. 1511672, Charles B. Kirkham, Internal combustion engines, 10/14/1924

6 1 Patent No. 1511689, John P. Tarbox, Combination land air and water craft, 10/14/1924
2 Patent No. 1511691, William E. Valk, Jr., Airplane radiators, 10/14/1924
3 Patent No. 1513053, Charles A. Lewis, Aircraft landing gear, 10/28/1924
4 Patent No. 1518410, Sylvanus Albert Reed, Aeronautical propellers, 12/9/1924
5 Patent No. 1531704, John P. Langfelder, Flotation bodies for hydroaircraft, 3/31/1925
6 Patent No. 1535526, William L. Gilmore, Aeroplane wings, 4/28/1925
7 Patent No. 1535532, John P. Langfelder, Aeroplanes, 4/28/1925
8 Patent No. 1539273, Sylvanus A. Reed, Propellers, 5/26/1925
9 Patent No. 1542412, Sylvanus A. Reed, Aeronautical propellers, 6/16/1925
10 Patent No. 1543479, Arthur Nutt, Starters for internal combustion engines, 6/23/1925
11 Patent No. 1543651, Harvey C. Mummert, Wing strut fastenings for aeroplanes, 6/23/1925
12 Patent No. 1545505, Grover C. Loening, Airplanes, 7/14/1925
13 Patent No. 1545684, Arthur Nutt and Adolph Moses, Internal combustion motors, 7/14/1925
14 Patent No. 1555409, William L. Gilmore, Airplane wings, 9/29/1925
15 Patent No. 1556348, William A. Ray and Rex B. Beisel, Aeroplane landing gears, 10/6/1925
16 Patent No. 1563384, Grover C. Loening, Retractable landing gears, 12/1/1925
17 Patent No. 1565096, Harvey C. Mummert and William Wait, Jr., Methods of constructing radiators for use in connection with internal combustion motors, 12/8/1925
18 Patent No. 1565097, Harvey C. Mummert, Differential aileron controls, 12/8/1925
19 Patent No. 1565100, Arthur Nutt and Adolph Moses, Automatic throttle controls, 12/8/1925
20 Patent No. 1568578, Walter L. Weeks, Reverse gear and clutch operating mechanism, 1/5/1926
21 Patent No. 1569245, Andrew V.D. Willgoos, Internal combustion engines, 1/12/1926
22 Patent No. 1575328, William L. Gilmore and Harvey C. Mummert, Aeroplane landing gears, 3/2/1926
23 Patent No. 1575359, Arthur Nutt, Lubricating systems for aeronautical motors, 3/2/1926
24 Patent No. 1584053, William Wait, Jr., Engine bed mountings, 5/11/1926
25 Patent No. 1584466, Harvey C. Mummert and William L. Gilmore, Airplane landing gears, 5/11/1926
26 Patent No. 1590699, Sylvanus A. Reed, Aeronautical propellers, 6/29/1926
27 Patent No. 1598738, George J. Meade and Charles F. Taylor, Oil radiators, 9/7/1926
28 Patent No. 1604757, Sylvanus A. Reed, Aeronautical propellers, 10/26/1926
29 Patent No. 1604758, Sylvanus A. Reed, Aeronautical propellers, 10/26/1926
30 Patent No. 1613602, Thomas H. Birmingham, Aerofoils, 1/11/1927
31 Patent No. 1613619, Harvey C. Mummert and Joseph F. Meade, Aeroplane radiators, 1/11/1927
32 Patent No. 1617433, Rex B. Beisel, Oil temperature regulators, 2/15/1927
33 Patent No. 1617816, Grover C. Loening, Amphibian airplanes, 2/15/1927
34 Patent No. 1621326, Charles L. Lawrance, Internal combustion engines, 3/15/1927
35 Patent No. 1623128, Harvey C. Mummert, Temperature regulating systems for liquid cooled aeronautical motors, 4/5/1927
36 Patent No. 1631259, William L. Gilmore, Variable lift--variable resistance airfoils, 6/7/1927
37 Patent No. 1632526, Andrew V.D. Willgoos, Clutches, 6/14/1927
38 Patent No. 1632913, Arthur Nutt, Propeller mountings, 6/21/1927
39 Patent No. 1635009, Sylvanus Albert Reed, Twisting machines, 7/5/1927
40 Patent No. 1639029, William L. Gilmore, Aeroplanes, 8/16/1927
41 Patent No. 1642278, Nathan F. Vanderlipp, Fasteners, 9/13/1927
42 Patent No. 1650464, Sylvanus A. Reed, Aeronautical propellers, 11/22/1927
43 Patent No. 1650665, Arthur L. Thurston, Airplane radiators, 11/29/1927
44 Patent No. 1651152, Sylvanus Albert Reed, Aeronautical propellers, 11/29/1927
45 Patent No. 1653122, William A. Ray, Aeroplane landing gears, 12/20/1927
46 Patent No. 1666761, William Wait, Jr., Combination seat and control mechanism for aircraft, 4/17/1928
47 Patent No. 1666769, Rex B. Beisel and William L. Gilmore, Airplanes, 4/17/1928
48 Patent No. 1672341, Sylvanus A. Reed, Aeronautical propellers, 6/5/1928
49 Patent No. 1673564, Charles E. Hathorn and Sylvanus A. Reed, Propeller twisting presses, 6/12/1928
50 Patent No. 1673608, William Wait, Jr., Wheel chocks for aeroplanes, 6/12/1928
51 Patent No. 1681219, Harold Caminez, Engine mounting, 8/21/1928
52 Patent No. 1682202, Stanley I. Vaughn, Beams, 8/28/1928
53 Patent No. 1682204, William Wait, Jr., Aeroplane radiators, 8/28/1928
54 Patent No. 1682229, Temple N. Joyce, Adjustable windshields, 8/28/1928
55 Patent No. 1684187, Grover C. Loening, Constructions for airplane floats, 9/11/1928

7 1 Patent No. 1687636, Sylvanus A. Reed, Aeronautical propellers, 10/16/1928
2 Patent No. 1692010, William Wait, Jr., Retractable landing gears, 11/20/1928
3 Patent No. 1694496, Theodore P. Wright and William Wait, Jr., Rudder operating mechanism for aircraft, 12/11/1928
4 Patent No. 1704713, Arthur R. Stalb, Jr., Pontoon attaching means, 3/12/1929
5 Patent No. 1705708, Rex B. Beisel, Metal trusses, 3/19/1929
6 Patent No. 1707830, William Wait, Jr., Exhaust mufflers for radial cylinder engines for aircraft, 4/2/1929
7 Patent No. 1708373, Frederick R. Weymouth, Control surface operating mechanism, 4/9/1929
8 Patent No. 1711637, Sherman Mills Fairchild, Control surface operating mechanism, 5/7/1929
9 Patent No. 1714804, Harvey C. Mummert, Radiators for aeroplanes, 5/28/1929
10 Patent No. 1714806, Arthur Nutt, Valve operating mechanism, 5/28/1929
11 Patent No. 1714807, Arthur Nutt, Valve operating mechanism, 5/28/1929
12 Patent No. 1714842, Rex B. Beisel, Radiator shutters, 5/28/1929
13 Patent No. 1718956, Knut Henrichsen, Aeroplane landing gears, 7/2/1929
14 Patent No. 1722467, Thomas H. Huff, Dusting apparatus, 7/30/1929
15 Patent No. 1722821, Arthur Nutt, Valve operating mechanism, 7/30/1929
16 Patent No. 1723012, Harold Caminez, Aircraft engine mount, 8/6/1929
17 Patent No. 1723175, Edward T. Jones, Master connecting rods for radial cylinder engines, 8/6/1929
18 Patent No. 1723962, Frederick R. Weymouth, Folding wing, 8/6/1929
19 Patent No. 1724959, George A. Page, Jr., and Frank H. Russell, Wire end seals for aircraft, 8/20/1929
20 Patent No. 1731492, Louis Haase, Pontoon nose buffer, 10/15/1929
21 Patent No. 1731531, Edgar N. Gott, Aircraft, 10/15/1929
22 Patent No. 1735852, Elliot Daland, Landing gears for airplanes, 11/19/1929
23 Patent No. 1737122, Arthur Nutt, Motor cooling systems, 11/26/1929
24 Patent No. 1737123, George A. Page, Jr., Dump valves for fluid containers, 11/26/1929
25 Patent No. 1739690, Arthur Nutt, Oiling systems, 12/17/1929
26 Patent No. 1743173, William O. Warner, Cam-shaft driving mechanism for internal combustion engines, 1/14/1930
27 Patent No. 1745126, Arthur Ralston Stalb, Jr., Detachable ski, 1/28/1930
28 Patent No. 1749769, Corydon Milton Johnson, Airplane wing construction, 3/11/1930
29 Patent No. 1759197, Grover Loening, Retractable landing gears, 5/20/1930
30 Patent No. 1759442, Richard Henry DePew, Jr., Control surface operating mechanism, 5/20/1930
31 Patent No. 1770276, Charles D. Koch, Refrigerators for moving vehicles, 7/8/1930
32 Patent No. 1770756, Roscoe I. Markey, Tail skid, 7/15/1930
33 Patent No. 1771743, Arthur G. Butler and George A. Page, Emergency dump valves, 7/29/1930
34 Patent No. 1772889, Sherman Mills Fairchild, Wing landing light, 8/12/1930
35 Patent No. 1773399, Arthur H. Leak, Crank case construction, 8/19/1930
36 Patent No. 1778113, Grover Loening, Seaplanes or amphibians, 10/14/1930
37 Patent No. 1778340, Sylvanus A. Reed, Aeronautical propellers, 10/14/1930
38 Patent No. 1781883, Sylvanus A. Reed, Aeronautical propellers, 11/18/1930
39 Patent No. 1785339, Elliot Daland, Shock absorbers for landing gears of airplanes, 12/16/1930
40 Patent No. 1789483, William Wait, Jr., Operating mechanism for aircraft control surfaces, 1/20/1931
41 Patent No. 1792489, William L. Gilmore, Joint fittings, 2/17/1931
42 Patent No. 1792537, William J. Irvine, Cowl fasteners, 2/17/1931
43 Patent No. 1793494, John G. Lee, Folding wing aeroplane, 2/24/1931
44 Patent No. 1799555, Leroy R. Grumman, Flying boats and like craft, 4/7/1931
45 Patent No. 1803995, Roland Chilton, Splined connections, 5/5/1931
46 Patent No. 1804433, Sylvanus Albert Reed, Aeronautical propellers, 5/12/1931
47 Patent No. 1804434, Sylvanus A. Reed, Aeronautical propellers and methods of making the same, 5/12/1931
48 Patent No. 1814315, Charles D. Koch, Refrigerators for vehicles, 7/14/1931
49 Patent No. 1817956, William Wait, Jr., Aeroplane wings, 8/11/1931
50 Patent No. 1818000, Howard R. Moles, Aerofoil operating mechanism, 8/11/1931
51 Patent No. 1823883, Maitland B. Bleecker, Indicators for internal combustion engines, 9/22/1931
52 Patent No. 1825301, Rex B. Beisel, Aeroplanes, 9/29/1931
53 Patent No. 1831365, Sylvanus A. Reed, Aeronautical propellers and methods of making same, 11/10/1931
54 Patent No. 1831366, Sylvanus A. Reed, Tandem aeronautical propellers, 11/10/1931
55 Patent No. 1831394, Sylvanus A. Reed, Aeronautical propellers, 11/10/1931
56 Patent No. 1832275, Rex B. Beisel, Aeronautical propellers, 11/17/1931
57 Patent No. 1832320, Arthur Nutt, Crank case oil seal, 11/17/1931
58 Patent No. 1833635, Ralph D. Carlton and Hubert F. Franklin, Control surface operating mechanism for aircraft, 11/24/1931
59 Patent No. 1833646, Charles E. Hathorn, Emergency flotation gears for aircraft, 11/24/1931
60 Patent No. 1833911, Sylvanus A. Reed, Aeronautical propellers, 12/1/1931

8 1 Patent No. 1836989, Sylvanus A. Reed, Aeronautical propellers and methods of making the same, 12/15/1931
2 Patent No. 1842765, Sylvanus A. Reed, Adjustable pitch propellers, 1/26/1932
3 Patent No. 1842766, Sylvanus A. Reed, Aeronautical propellers, 1/26/1932
4 Patent No. 1846609, Sylvanus A. Reed, Attachment means for aeronautical propellers, 2/23/1932
5 Patent No. 1850964, Rex B. Beisel, Aeroplane landing gears, 3/22/1932
6 Patent No. 1855020, Knut Henrichsen, Aircraft tail chassis, 4/19/1932
7 Patent No. 1855589, Sylvanus A. Reed, Aeronautical propellers, 4/26/1932
8 Patent No. 1856080, Robert R. Osborn, Aeroplane wing structures, 5/3/1932
9 Patent No. 1858393, Richard Henry DePew, Jr., Airplane wheel brake operating means, 5/17/1932
10 Patent No. 1860813, Arthur Nutt, Lubrication systems for inverted motors, 5/31/1932
11 Patent No. 1860814, Arthur Nutt, Internal combustion engines, 5/31/1932
12 Patent No. 1860851, Roland Chilton, Yielding clutches, 5/31/1932
13 Patent No. 1869182, Werner J. Blanchard, Propellers, 7/26/1932
14 Patent No. 1869211, Robert R. Osborn, Airfoil operating mechanism, 7/26/1932
15 Patent No. 1874332, Edmund B. Moore, Variable pitch propellers, 8/30/1932
16 Patent No. 1874406, Theodore P. Wright, Exhaust silencers, 8/30/1932
17 Patent No. 1874422, Rex B. Beisel, Gun mounts, 8/30/1932
18 Patent No. 1874444, Carl Gustaf Carvelli, Oiling systems, 8/30/1932
19 Patent No. 1874446, Roland Chilton, Ported cylinder construction, 8/30/1932
20 Patent No. 1874493, Charles G. Geignetter, Duel control brakes, 8/30/1932
21 Patent No. 1874522, Knut Henrichsen, Curved control sticks, 8/30/1932
22 Patent No. 1874523, Knut Henrichsen, Aircraft cowling for tandem motors, 8/30/1932
23 Patent No. 1874605, George A. Page, Jr., Oil tanks, 8/30/1932
24 Patent No. 1874610, Samuel T. Payne, Fuselage construction, 8/30/1932
25 Patent No. 1874650, Colby W. Steward, Aeroplane landing gears, 8/30/1932
26 Patent No. 1874685, Theodore P. Wright, Ribless wings, 8/30/1932
27 Patent No. 1882305, Max Stupar and George A. Payne, Clamps, 10/11/1932
28 Patent No. 1886708, Roscoe I. Markey, Fastening device for airplane wing covers, 11/8/1932
29 Patent No. 1888807, Elmer James Rivers, Machine for shaping metal tubes, 11/22/1932
30 Patent No. 1890820, Roscoe I. Markey, Airplane, 12/13/1932
31 Patent No. 1892064, Roscoe I. Markey, Aeroplane landing ski, 12/27/1932
32 Patent No. 1892065, Roscoe I. Markey, Aeroplane engine mount, 12/27/1932
33 Patent No. 1892070, Roy G. Miller, Sound absorbing monocoque fuselage, 12/27/1932
34 Patent No. 1892914, Clem G. Trimbach, Machine gun mounts for aircraft, 1/3/1933
35 Patent No. 1892915, Arne F. Vinje, Aircraft control surface adjusting mechanisms, 1/3/1933
36 Patent No. 1892916, Arne F. Vinje, Aircraft controls, 1/3/1933
37 Patent No. 1892927, Raymond C. Blaylock, Control surface for aircraft, 1/3/1933
38 Patent No. 1894582, George W. De Bell, Retractable landing gear, 1/17/1933
39 Patent No. 1895222, Corydon M. Johnson, Airplane safety belt, 1/24/1933
40 Patent No. 1896222, Roland Chilton, Engine cowlings, 2/7/1933
41 Patent No. 1896234, Charles E. Hathorn, Tail wheels, 2/7/1933
42 Patent No. 1896270, Theodore P. Wright, Airplanes, 2/7/1933
43 Patent No. 1902071, Charles E. Hathorn, Stabilizer adjusting mechanism, 3/21/1933
44 Patent No. 1902094, George A. Page, Jr., Rudder pedal adjusting mechanism, 3/21/1933
45 Patent No. 1902096, Fred A. A. Pearson, Propellers, 3/21/1933
46 Patent No. 1902107, Clem G. Trimbach, Machine gun mounts for aircraft, 3/21/1933
47 Patent No. 1902111, Stanley Irving Vaughn, Metal joints and methods of forming the same, 3/21/1933
48 Patent No. 1902421, Herbert Rawdon and Walter E. Burnham, Shock absorbers, 3/21/1933
49 Patent No. 1905891, Werner J. Blanchard, Aeronautical propellers, 4/25/1933
50 Patent No. 1906404, George A. Page, Jr., Apparatus for cooling internal combustion engines, 5/2/1933

9 1 Patent No. 1908726, Rex B. Beisel and George A. Page, Jr., Aeroplane shutters, 5/16/1933
2 Patent No. 1908757, Charles E. Hathorn, Aeronautical trusses and methods of forming the same, 5/16/1933
3 Patent No. 1908814, Werner J. Blanchard, Propeller mountings, 5/16/1933
4 Patent No. 1908820, Roland Chilton, Engine cowlings, 5/16/1933
5 Patent No. 1910591, Roland Chilton, Air cooled engine cylinders, 5/23/1933
6 Patent No. 1914092, Knut Henrichsen and Samuel T. Payne, Retractable landing gears, 6/13/1933
7 Patent No. 1917078, Theodore P. Wright and Robert R. Osborn, Landing gears for aircraft, 7/4/1933
8 Patent No. 1922063, Stanley I. Vaughn, Monocoque bodies, 8/15/1933
9 Patent No. 1923384, Roy G. Miller, Airplane fuel tank, 8/22/1933
10 Patent No. 1925271, Roy G. Miller, Composite floor construction, 9/5/1933
11 Patent No. 1926329, Roland Chilton, Pistons, 9/12/1933
12 Patent No. 1926349, Arthur Nutt, Arthur H. Leak, and Harry L. Chisholm, Jr., Valve operating mechanism, 9/12/1933
13 Patent No. 1933966, Roland Chilton, Engine cowlings, 11/7/1933
14 Patent No. 1933998, Samuel T. Payne, Oil coolers, 11/7/1933
15 Patent No. 1934399, Maitland B. Bleecker, Methods and apparatus for cooling internal combustion engines, 11/7/1933
16 Patent No. 1939047, William F. Gerhardt and Clarence A. Brock, Aerodynamic instructions and testing apparatus, 12/12/1933
17 Patent No. 1939051, Charles E. Hathorn, Sliding windshields, 12/12/1933
18 Patent No. 1941348, Charles E. Hathorn, Joint fittings, 12/26/1933
19 Patent No. 1942391, Roy G. Miller, Airplane wing spars, 1/2/1934
20 Patent No. 1943233, Myron G. Beard, Heating and ventilating systems, 1/9/1934
21 Patent No. 1944219, Roland Chilton, Flange connections, 1/23/1934
22 Patent No. 1947982, William F. Gerhardt and Clarence A. Brock, Amusement apparatus, 2/20/1934
23 Patent No. 1947987, Charles E. Hathorn, Combined exhaust manifolds and mufflers, 2/20/1934
24 Patent No. 1950970, Roland Chilton, Two cycle engines, 3/13/1934
25 Patent No. 1950971, Roland Chilton, Reduction gears, 3/13/1934
26 Patent No. 1950995, Jules E. Piccard, Oleopneumatic struts, 3/13/1934
27 Patent No. 1951320, Werner J. Blanchard, Variable pitch propellers, 3/13/1934
28 Patent No. 1951321, Werner J. Blanchard, Blade retention devices, 3/13/1934
29 Patent No. 1951783, Myron G. Beard, Instrument board lighting devices, 3/20/1934
30 Patent No. 1951839, Elmer J. Rivers, Riveting devices, 3/20/1934
31 Patent No. 1958229, Walter H. Beech, Safety meters, 5/8/1934
32 Patent No. 1958261, William J. Blanchard, Indicators, 5/8/1934
33 Patent No. 1958264, Roland Chilton, Valve gears, 5/8/1934
34 Patent No. 1961584, Charles E. Hathorn, Frames for access opening for use in aircraft construction, 6/5/1934
35 Patent No. 1962246, Arthur H. Leak, Multiple master connecting rod assemblies, 6/12/1934
36 Patent No. 1966043, George A. Page, Jr. and George E. Warren, Cowling rings, 7/10/1934
37 Patent No. 1968182, Clem G. Trimbach, Gun mounts, 7/31/1934
38 Patent No. 1974802, Roland Chilton, Valve spring mechanism, 9/25/1934
39 Patent No. 1974803, Roland Chilton, The venting of crank cases, 9/25/1934
40 Patent No. 1974804, Roland Chilton, Crank case venting systems, 9/25/1934
41 Patent No. 1976456, Edmund L. Noonan, Combined fuel valves and tank releases, 10/9/1934
42 Patent No. 1976479, Arthur G. Butler, Bungee controls, 10/9/1934
43 Patent No. 1976480, Ralph D. Carlton and Raymond C. Blaylock, Aerofoils, 10/9/1934
44 Patent No. 1976482, Edward R. Child, Slot and flap combinations, 10/9/1934
45 Patent No. 1976483, Roland Chilton, Compensated valve gears, 10/9/1934
46 Patent No. 1979025, Gustaf Carvelli, Venting systems, 10/30/1934
47 Patent No. 1980181, Karl Bodden, Automatic riveters, 11/13/1934
48 Patent No. 1980185, Roland Chilton, Torsional vibration dampers, 11/13/1934
49 Patent No. 1980195, William F. Gerhardt and Clarence A. Brock, Wind tunnel balances, 11/13/1934
50 Patent No. 1980228, Frank D. Rogers, Welding tools, 11/13/1934
51 Patent No. 1983358, Frank W. Fink, Aircraft landing gear holding devices, 12/4/1934
52 Patent No. 1983368, Charles E. Hathorn, Sealing means for control rods, 12/4/1934

10 1 Patent No. 1983378, William D. Kennedy, Valve gear servicing devices, 12/4/1934
2 Patent No. 1988079, Knut Henrichsen, Airplane wings, 1/15/1935
3 Patent No. 1988085, Salvatore P. Orlando, Structural joints, 1/15/1935
4 Patent No. 1988093, Colby W. Steward, Landing gears, 1/15/1935
5 Patent No. 1988119, Henry C. Hill, Internal combustion engines, 1/15/1935
6 Patent No. 1988148, Frederick R. Weymouth, Ailerons and flap combinations, 1/15/1935
7 Patent No. 1990978, Edward R. Child, Irreversible controls, 2/12/1935
8 Patent No. 1990979, Roland Chilton, Engine cooling means, 2/12/1935
9 Patent No. 1990990, Charles E. Hathorn, Control levers and shafting, 2/12/1935
10 Patent No. 1993875, Rudolph Daub, Valve gear operating mechanism, 3/12/1935
11 Patent No. 1993893, George A. Page, Jr., Battery installations, 3/12/1935
12 Patent No. 1995601, Kenneth A. Browne, Mixture ratio control for fuel injection pumps, 3/26/1935
13 Patent No. 1997279, Roland Chilton, Piston driving mechanism, 4/9/1935
14 Patent No. 1997285, Frederick R. Weymouth, Antiflutter devices, 4/9/1935
15 Patent No. 1997298, Charles E. Hathorn, Mufflers, 4/9/1935
16 Patent No. 2000666, Robert R. Osborn and Theodore P. Wright, Aircraft, 5/7/1935
17 Patent No. 2000714, Arthur Nutt, Lubricating systems, 5/7/1935
18 Patent No. 2000722, Colby W. Steward, Exhaust manifolds, 5/7/1935
19 Patent No. 2002944, Charles E. Hathorn, Access openings for use in aircraft construction, 5/28/1935
20 Patent No. 2008094, Milton A. Chester, Shock struts, 7/16/1935
21 Patent No. 2010945, Ralph D. Carleton, Tail wheel fairings, 8/13/1935
22 Patent No. 2014776, Robert R. Osborn, Wing construction, 9/17/1935
23 Patent No. 2014777, Samuel T. Payne and Frederick R. Weymouth, Retractable landing gear, 9/17/1935
24 Patent No. 2014791, Clem G. Trimbach, Adapters for twin flexible machine guns, 9/17/1935
25 Patent No. 2014793, Frederick R. Weymouth and Frank A. Wedberg, Retractable landing gear, 9/17/1935
26 Patent No. 2014801, Frederic Flader, Rib construction, 9/17/1935
27 Patent No. 2017207, Charles E. Hathorn, Strut fairing brackets, 10/15/1935
28 Patent No. 2018012, Roland Chilton, Spinner cowls, 10/22/1935
29 Patent No. 2021129, Roland Chilton, Oil temperature regulators, 11/19/1935
30 Patent No. 2021282, Werner J. Blanchard, Lubricating systems, 11/19/1935
31 Patent No. 2021306, Charles E. Hathorn, Tail wheels, 11/19/1935
32 Patent No. 2021307, Charles E. Hathorn, Retractable landing gear operating means, 11/19/1935
33 Patent No. 2021324, Robert R. Osborn, Folding wing aeroplanes, 11/19/1935
34 Patent No. 2021325, George A. Page, Jr., Wheel fairing, 11/19/1935
35 Patent No. 2021326, Samuel T. Payne, Retractable landing gears, 11/19/1935
36 Patent No. 2025735, Frederic E. Flader and Donald C. Rowe, Amphibian landing gears, 12/31/1935
37 Patent No. 2025743, Charles E. Hathorn, Retractable landing gear, 12/31/1935
38 Patent No. 2025744, Charles E. Hathorn, Methods and apparatus for electric spot welding, 12/31/1935
39 Patent No. 2026182, Arthur H. Leak, Supercharger fuel drains, 12/31/1935
40 Patent No. 2032682, Werner J. Blanchard, Crankcase vents, 3/3/1936
41 Patent No. 2032711, Howard R. Moles, Crash pads, 3/3/1936
42 Patent No. 2032718, Donald C. Rowe, Tail wheels, 3/3/1936
43 Patent No. 2034083, Arthur G. Butler, Landing gears, 3/17/1936
44 Patent No. 2034087, Roland Chilton, Two speed supercharger drives, 3/17/1936
45 Patent No. 2034095, Charles E. Hathorn, Hand grips and covers, 3/17/1936
46 Patent No. 2034106, Guy A. Luburg, Retractable landing gears, 3/17/1936
47 Patent No. 2034119, Herbert V. Shebat, Mufflers, 3/17/1936
48 Patent No. 2034121, Robert A. Swaim, Parking brakes, 3/17/1936
49 Patent No. 2035019, Robert R. Osborn, Cooling means, 3/24/1936
50 Patent No. 2035231, George F. Haberstro, Parking harness, 3/24/1936
51 Patent No. 2037384, Arthur H. Leak, Connecting rods, 4/14/1936
52 Patent No. 2040465, Roland Chilton, Connecting rods, 5/12/1936
53 Patent No. 2040496, Robert R. Osborn, Control mechanism for auxiliary wing flaps, 5/12/1936
54 Patent No. 2044338, Colby W. Steward, Retractable landing gears, 6/16/1936

11 1 Patent No. 2044340, Clem G. Trimbach, Gun installation and firing means, 6/16/1936
2 Patent No. 2044357, John A. Kerr, Aileron control for folding wings, 6/16/1936
3 Patent No. 2044368, Donald C. Rowe, Walter Tydon, and Fredric E. Flader, Differential screws, 6/16/1936
4 Patent No. 2047341, Stanley I. Vaughn and Edwin H. Fabing, Methods of riveting, 7/14/1936
5 Patent No. 2047392, Frederick I. Steele, Gear shift mechanism, 7/14/1936
6 Patent No. 2049145, George E. Warren and George F. Haberstro, Jr., Control levers with switches, 7/28/1936
7 Patent No. 2050240, Myron G. Beard, Heating and ventilating systems for aircraft, 8/11/1936
8 Patent No. 2050741, Godfrey B. Speir, Wheel starters, 8/11/1936
9 Patent No. 2050748, Rudolph Daub, Two cycle engines, 8/11/1936
10 Patent No. 2053048, S.T. Robinson, Cover fastenings, 9/1/1936
11 Patent No. 2053053, Robert A. Swaim, Aircraft landing gears, 9/1/1936
12 Patent No. 2053064, Leonard O. Cederwall, Aileron controls, 9/1/1926
13 Patent No. 2053078, Charles E. Hathorn, Engine mounts, 9/1/1926
14 Patent No. 2053093, Guy A. Luburg, Amphibian landing gears, 9/1/1926
15 Patent No. 2056999, Raymond C. Blaylock, Control mechanism, 10/13/1926
16 Patent No. 2057010, Roland Chilton, Baffles for air-cooled cylinders, 10/13/1926
17 Patent No. 2059687, Rudolph F. Gagg, Deicing throttles, 11/3/1936
18 Patent No. 2059717, Clem G. Trimbach, Flexible adapters for machine guns, 11/3/1936
19 Patent No. 2064461, Roland Chilton and Rudolph F. Gagg, Cylinder fin construction, 12/15/1936
20 Patent No. 2064673, Guy A. Luburg, Collapsible turtlebacks, 12/15/1936
21 Patent No. 2064674, Guy A. Luburg, Eddie Molloy, and Frederic E. Flader, Flexible flotation gears, 12/15/1936
22 Patent No. 2064675, Guy A. Luburg, Amphibian landing gears, 12/15/1936
23 Patent No. 2064729, Ralph D. Carleton, Bomb supports, 12/15/1936
24 Patent No. 2066394, Rudolph Daub, Internal combustion engine structure, 1/5/1937
25 Patent No. 2067585, Clem G. Trimbach, Gunners' seat and mountings, 1/12/1937
26 Patent No. 2067595, Kenneth A. Browne, Willard B. Goodman, and Donald J. Lowman, Deicing means, 1/12/1937
27 Patent No. 2067597, Roland Chilton, Cooling fins, 1/12/1937
28 Patent No. 2069991, Werner J. Blanchard, Pitch indicators, 2/9/1937
29 Patent No. 2069994, Arthur G. Butler, Folding landing gears, 2/9/1937
30 Patent No. 2069996, Ralph D. Carleton and Clem G. Trimbach, Releasable tanks and bomb racks, 2/9/1937
31 Patent No. 2070006, Bruce G. Eaton, Jr., and Harry A. Sutton, Wing spoilers, 2/9/1937
32 Patent No. 2070009, Willard B. Goodman, Anterior throttle carburetors, 2/9/1937
33 Patent No. 2071594, Clem G. Trimbach, Streamline mounts for miniature bombs, 2/23/1937
34 Patent No. 2073325, Harry A. Sutton, Sliding hoods, 3/9/1937
35 Patent No. 2073350, Robert R. Osborn, Wing trusses, 3/9/1937
36 Patent No. 2073362, Arthur G. Butler, Richard E. Palmer, and Samuel T. Payne, Retractable landing gears, 3/9/1937
37 Patent No. 2076224, Roland Chilton, Engine cowlings, 4/6/1937
38 Patent No. 2076225, Roland Chilton, Engine cooling and cowling, 4/6/1937
39 Patent No. 2076232, Willard B. Goodman and Wesley L. Losson, Engine cooling and cowling, 4/6/1937
40 Patent No. 2076254, Herbert V. Shebat, Bearings, 4/6/1937
41 Patent No. 2076256, Robert A. Swaim and Carl R.O.P. Heintze, Mounts for wing guns, 4/6/1937
42 Patent No. 2076259, Theodore P. Wright, Antivibration vanes, 4/6/1937
43 Patent No. 2089168, Perry W. Brown, Spline connections, 8/3/1937
44 Patent No. 2089649, Charles E. Hathorn, Quick detachable clevises, 8/10/1937
45 Patent No. 2090079, Clem G. Trimbach, Gun mounts, 8/17/1937
46 Patent No. 2090775, Theodore P. Wright, Twisted fairings, 8/24/1937
47 Patent No. 2092639, Roland Chilton, Gear means for eliminating a master connecting rod, 9/7/1937
48 Patent No. 2092644, Frank Erny, Tension oleo struts, 9/7/1937
49 Patent No. 2092655, George A. Page, Jr., Airplanes with sleeping accommodations, 9/7/1937
50 Patent No. 2092662, Frederick R. Weymouth, Retractable landing gear, 9/7/1937

12 1 Patent No. 2095739, Willard B. Goodman, Carburetors, 10/12/1937
2 Patent No. 2095743, Charles E. Hathorn, Retractable landing gears, 10/12/1937
3 Patent No. 2095757, William G. Lundquist and John E. Weiss, Dynamic dampers, 10/12/1937
4 Patent No. 2095791, Roland Chilton and Rudolph F. Gagg, Spark plug shields and coolers, 10/12/1937
5 Patent No. 2095794, George M. Corbin, Reduction gears, 10/12/1937
6 Patent No. 2097996, Arthur G. Butler, Auxiliary surface controls, 11/2/1937
7 Patent No. 2098565, Roland Chilton, Engine cooling and cowling, 11/9/1937
8 Patent No. 2098566, Roland Chilton, Deicing means for aircraft, 11/9/1937
9 Patent No. 2098571, Chester C. DePew, Link type dynamic dampers, 11/9/1937
10 Patent No. 2101239, Roland Chilton, Supercharger drives, 12/7/1937
11 Patent No. 2102817, Frederick R. Weymouth, Fuselage construction, 12/21/1937
12 Patent No. 2104590, Henry C. Hill, Fluid metering devices, 1/4/1938
13 Patent No. 2104599, Paul G. Wellenkamp, Geared connecting rods, 1/4/1938
14 Patent No. 2109329, Ralph D. Carleton, Engine mounts, 2/22/1938
15 Patent No. 2110711, Donald G. MacCulloch, Two speed superchargers, 3/8/1938
16 Patent No. 2110730, Raymond P. Holland, Jr., Stall indicators, 3/8/1938
17 Patent No. 2110749, Walter Tydon and William O. Watson, Landing gear locking devices, 3/8/1938
18 Patent No. 2110752, Theodore P. Wright, Methods of applying covering to a frame, 3/8/1938
19 Patent No. 2113000, Donald C. Rowe, Antiflutter devices, 4/5/1938
20 Patent No. 2114522, Arthur G. Butler, Steerable tail wheels, 4/19/1938
21 Patent No. 2115165, Charles E. Hathorn and John W. Dunn, Tank construction, 4/26/1938
22 Patent No. 2116860, Raymond C. Blaylock and Clem G. Trimbach, Automatic gun chargers, 5/10/1938
23 Patent No. 2116861, Roland Chilton, Dynamic dampers, 5/10/1938
24 Patent No. 2117234, Jonathan R. Austin and Donovan R. Berlin, Emergency balancing means, 5/10/1938
25 Patent No. 2119221, Kenneth Campbell, Engine cowlings, 5/31/1938
26 Patent No. 2120290, Andre J. Meyer, Adjustable combustion chamber engines, 6/14/1938
27 Patent No. 2121950, Roland Chilton, Ball suspended dynamic counterweights, 6/28/1938
28 Patent No. 2122449, Donovan R. Berlin, Aircraft cabins, 7/5/1938
29 Patent No. 2124078, Richard E. Palmer and Charles S. J. MacNeil, Jr., Controllable pitch propellers, 7/19/1938
30 Patent No. 2127460, Roland Chilton, Engine accessory drives, 8/16/1938
31 Patent No. 2127461, Roland Chilton, Cylinder head attachments, 8/16/1938
32 Patent No. 2127462, Roland Chilton, Rocking dynamic dampers, 8/16/1938
33 Patent No. 2127463, Roland Chilton, Reduction gears, 8/16/1938
34 Patent No. 2127464, Roland Chilton, Planetary reduction gears, 8/16/1938
35 Patent No. 2128983, Werner J. Blanchard, Aircraft power plant control, 9/6/1938
36 Patent No. 2128986, Roland Chilton, Flexible control terminals, 9/6/1938
37 Patent No. 2132605, Roland Chilton, Cylinder heads, 10/11/1938
38 Patent No. 2132659, Ralph D. Speirs, Pattern construction, 10/11/1938
39 Patent No. 2137382, Raymond C. Blaylock, Francis P. Basset, Edward R. Child, and Robert R. Osborn, Wing flaps, 11/22/1938
40 Patent No. 2137384, Kenneth Alan Browne, Fuel metering and distributing systems, 11/22/1938
41 Patent No. 2137385, Arthur G. Butler, Aircraft control systems, 11/22/1938
42 Patent No. 2137386, Kenneth Campbell and Philip B. Taylor, Controllable engine cowlings, 11/22/1938
43 Patent No. 2137390, Roland Chilton, Rotary valves and seals therefor, 11/22/1938
44 Patent No. 2137391, Roland Chilton, Cylinder attachments, 11/22/1938
45 Patent No. 2137399, Vinton Higbie and Raymond W. Young, Aircraft engine intercoolers, 11/22/1938
46 Patent No. 2137400, Henry C. Hill and Arthur Landauer, Crankcase scavenging scoops, 11/22/1938
47 Patent No. 2137418, Charles M. Shay, Dynamic dampers, 11/22/1938
48 Patent No. 2137640, Clem G. Trimbach and Camille R. Lemonier, Flexible gun mount control, 11/22/1938
49 Patent No. 2139367, Norman L. Kearney, Radiator core construction, 12/6/1938
50 Patent No. 2144607, Roland Chilton, Reduction gears, 1/24/1939

13 1 Patent No. 2146522, Werner J. Blanchard, Motor control systems, 2/7/1939
2 Patent No. 2146523, Maitland B. Bleecker and Godfrey B. Speir, Cowling, 2/7/1939
3 Patent No. 2146524, Maitland B. Bleecker, Dynamic dampers guided for polar and translational movement, 2/7/1939
4 Patent No. 2146527, Allan Chilton, Radial engine connection rods, 2/7/1939
5 Patent No. 2146528, Roland Chilton, Rotary valves, 2/7/1939
6 Patent No. 2146529, Roland Chilton, Magneto mounts, 2/7/1939
7 Patent No. 2146530, Rolandd Chilton, Spherically formed connecting rod ends and bearings, 2/7/1939
8 Patent No. 2146538, Fredric E. Flader, Adjustable engine cowlings, 2/7/1939
9 Patent No. 2146548, Frank Mitschang, Joseph Mitschang, and Julian C. Wander, Flexible abrasive disks, 2/7/1939
10 Patent No. 2146550, Erold Francis Pierce, Hydraulic valve tappets, 2/7/1939
11 Patent No. 2146554, Peter F. Rossman, Cooling of machine guns, 2/7/1939
12 Patent No. 2150537, Donovan R. Berlin, William O. Watson, and Walter Tydon, Retractable landing gears, 3/14/1939
13 Patent No. 2150540, Allan Chilton, Reduction gears, 3/14/1939
14 Patent No. 2150541, Roland Chilton, Rotary valves, 3/14/1939
15 Patent No. 2150546, Fredric E. Flader, Wing structures, 3/14/1939
16 Patent No. 2150548, Henry C. Hill, Connecting rods, 3/14/1939
17 Patent No. 2154063, Roland Chilton, Rocking dynamic dampers with floating pin supports, 4/11/1939
18 Patent No. 2158270, Kenneth A. Brown, Controllable cowling, 5/16/1939
19 Patent No. 2158272, Roland Chilton, Rocker arm bearings, 5/16/1939
20 Patent No. 2158273, Roland Chilton, Controllable cowling, 5/16/1939
21 Patent No. 2158300, George A. Page, Jr., Retractable landing gears, 5/16/1939
22 Patent No. 2158676, Lloyd F. Engelhardt, Wing flap mechanism, 5/16/1939
23 Patent No. 2162218, Henry C. Hill, Oil seals, 6/13/1939
24 Patent No. 2162227, George A. Page, Jr., Pressure fuselage, 6/13/1939
25 Patent No. 2162243, Kenneth A. Browne, Automatic magneto couplings, 6/13/1939
26 Patent No. 2162259, William D. Kennedy, Engine oil scavenging devices, 6/13/1939
27 Patent No. 2165443, Donovan R. Berlin, Aircraft power plants, 7/11/1939
28 Patent No. 2165447, Kenneth A. Browne, Pressure measuring carburetors, 7/11/1939
29 Patent No. 2165448, Kenneth A. Browne, Turbosuperchargers, 7/11/1939
30 Patent No. 2165453, Allan Chilton, Chester C. DePew, and Roland D. Chilton, Multiple engine power plants, 7/11/1939
31 Patent No. 2165460, Arthur J. Desing, Adjustable length levers, 7/11/1939
32 Patent No. 2165462, Roland Chilton, Reduction gears, 7/11/1939
33 Patent No. 2165463, Roland Chilton, Dynamic torque balancers, 7/11/1939
34 Patent No. 2165482, Paul E. Hovgard, Aircraft wing arrangements, 7/11/1939
35 Patent No. 2169222, Roland Chilton, Dynamic dampers having single support and cam stabilizer, 8/15/1939
36 Patent No. 2169243, Vinton Higbie, Supercharger and coder arrangements, 8/15/1939
37 Patent No. 2172729, Roland Chilton, Centrifugal breathers, 9/12/1939
38 Patent No. 2172741, Wilton G. Lundquist, Crankshaft torsion dampers, 9/12/1939
39 Patent No. 2175825, Kenneth A. Browne and Edward S. Taylor, Engine mounts, 10/10/1939
40 Patent No. 2175852, Kendall Perkins, Turret gun mounts, 10/10/1939
41 Patent No. 2175876, Roland Chilton, One way clutches, 10/10/1939
42 Patent No. 2175931, Clem G. Trimbach, Gun pointing accessories, 10/10/1939
43 Patent No. 2175999, Edward S. Taylor, Flexible engine mounts, 10/10/1939
44 Patent No. 2178953, Roland Chilton, Hydraulic plunger seals, 11/7/1939
45 Patent No. 2178960, Rudolph F. Gagg, Cowling, 11/7/1939
46 Patent No. 2178993, Henry C. Hill, Piston ring arrangements, 11/7/1939
47 Patent No. 2178998, Carl William Scott, Engine cowlings, 11/7/1939
48 Patent No. 2179072, Roland Chilton and Allan Chilton, Planetary reduction gears, 11/7/1939
49 Patent No. 2182961, Roy T. Clay, Vernier controls, 12/12/1939
50 Patent No. 2183011, Rudolph Daub, Radial engine valve gears, 12/12/1939
51 Patent No. 2183020, Henry C. Hill, Ignition harness, 12/12/1939
52 Patent No. 2184734, Roland Chilton, Rocking dynamic dampers, 12/26/1939

Series I: Patents, 1911-1939 Subseries II: International Patents, 1916-1935
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