Drilldown: Patents

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Patents > Grant date: 1920 - 1929 & Number of text pages: 2 & Number of claims: 4-90

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Office:
Inventors:
None (15) · Ernst Heinkel (3) · Anton Flettner (3) · Spencer Heath (2) · Joseph Vanorio (2) · John William Rapp (2) · Gianni Caproni (2) · Harold J. Horn (2)
Inventor country:
Applicant person:
None (20) · Ernst Heinkel‎ (3) · Anton Flettner (3) · Gianni Caproni (2) · Spencer Heath (2) · John William Rapp (2) · Joseph Vanorio (2) · Harold J. Horn (2)
Applicant is inventor:
Tech fields:
frame (14) · airplane (13) · construction (12) · design (10) · None (9) · wings (7) · Propeller (6) · propellers (5) · LTA (5) · control (5) · chassis (5) · safety (4) · rudder (4) · propulsion (4) · aerodynamics (4) · stability (4) · HTA (3) · biplane (3) · landing (3) · fuselage (3)
Full specification filed date:
Application number:
None (18)
Granted:
Publication date:
Related to aircraft:
IPCs:
IPC B64C3/00 (10) · None (8) · IPC B64C11/04 (5) · IPC B64C3/18 (4) · IPC B64C11/20 (4) · IPC B64C9/02 (3) · IPC B64C25/00 (3) · IPC B64C11/00 (3) · IPC B64C13/00 (2) · IPC B64C35/00 (2) · IPC B64C39/00 (2) · IPC B64C1/26 (2) · IPC B64C25/50 (2)
CPCs:
CPC B64C3/00 (10) · None (6) · CPC B64C2700/6235 (6) · CPC B64C11/04 (5) · CPC B64C13/00 (4) · CPC B64C11/00 (3) · CPC B64C2700/6233 (3) · CPC B64C9/02 (3) · CPC B64C25/62 (2) · CPC B64F2700/6226 (2) · CPC B64C25/50 (2) · CPC B64C25/06 (2) · CPC B64C11/20 (2) · CPC B64C11/205 (2) · CPC B64C35/00 (2) · CPC B64C1/26 (2)
First filing:
Cites these patents:
Citations from after 1930:
Number of text pages:
Number of claims:
Number of diagram pages:

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