Drilldown: Patents

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Patents > Grant date: 1920 - 1929 & Patent agent: None

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Office:
Inventor country:
Applicant firm:
None (393) · Rumpler-Werke G.m.b.H. in Berlin-Johannisthal (15) · Dornier Metallbauten (8) · Westinghouse Electric & Manufacturing Company (7) · Helix Propeller G.m.b.H. (6) · Gothaer Waggonfabrik A. G. (6) · Luftfahrzeugbau Schütte-Lanz (5) · Mercur Flugzeugbau (5) · Moteurs Salmson (5) · Luft-Verkehrs-Gesellschaft m.b.H. (5) · Allgemeine Elektricitäts-Gesellschaft (5) · Société des Avions Louis Bréguet (4) · AGO Flugzeugwerke G. m. b. H. (4) · Luftschiffbau Schütte-Lanz (4) · Österreichische Daimler Motoren A. G. (4)
Applicant is inventor:
Tech fields:
None (255) · airplane (110) · frame (63) · construction (58) · design (56) · wings (44) · propellers (39) · aerodynamics (28) · propeller (26) · subsystem (23) · fuselage (20) · propulsion (19) · biplane (19) · control (18) · stability (17) · motors (15) · LTA (14) · airship (13)
Full specification filed date:
Application number:
Granted:
Supplementary to patent:
None (453) · Patent IT-1914- (2) · Patent FR-1912-455471 (2) · Patent DE-1921-384750 (2) · Patent DE-1916-332540 (2)
Related to aircraft:
Patent agent: (Click arrow to add another value)
National tech categories:
None (292) · DE 77h.5 (63) · HU V/h (62) · DE 77h.6 (22) · DE 77h.9 (19) · DE 77h.7 (12) · AT 77d (10) · FR 6.4 (9) · NL 62 (7) · DE 77h.4 (3) · RU 62b (3) · NL 62.6 (3) · NL 62.7 (3)
IPCs:
None (351) · IPC B64C3/00 (34) · IPC B64C35/00 (13) · IPC B64C1/00 (11) · IPC B64C13/00 (11) · IPC B64C11/00 (10) · IPC B64C17/00 (10) · IPC B64C11/20 (10) · IPC B64C3/18 (9) · IPC B64C9/02 (6) · IPC B64C1/06 (5) · IPC B64C11/36 (5) · IPC B64C11/04 (5) · IPC B64C11/34 (4) · IPC B64C27/04 (4) · IPC B64C25/00 (4) · IPC B64B1/00 (4) · IPC B64C3/38 (4)
CPCs:
None (102) · CPC B64C3/00 (51) · CPC B64C13/00 (28) · CPC B64C17/00 (25) · CPC B64C2700/6235 (22) · CPC B64C2700/6233 (22) · CPC B64C2700/6256 (18) · CPC B64C2700/6295 (18) · CPC B64C39/00 (16) · CPC B64C35/00 (16) · CPC B64C3/185 (13) · CPC B64C3/18 (12) · CPC B64B1/58 (12) · CPC B64C2001/0081 (12) · CPC B64C11/20 (11) · CPC B64C11/04 (11) · CPC B64C2700/6212 (10) · CPC B64B1/00 (10) · CPC B64C11/00 (9)
First filing:
Cites these patents:
Citations from after 1930:
Number of diagram pages:

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