Drilldown: Patents

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Patents > Granted: Yes & National tech categories : DE 62b.13 or DE 77h.6

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Office:
Inventors:
None (19) · Jakob Haw (7) · Christian Lorenzen (6) · Hellmuth Hirth (4) · Paul Frederik Degn (2) · Lucien Chauvière (2) · Joseph Hofmann (2)
Inventor country:
Applicant person:
None (35) · Jakob Haw (5) · Joseph Hofmann (2) · Hellmuth Hirth (2) · Hans Reissner (2) · Christian Lorenzen (2) · Lucien Chauvière (2) · Paul Frederik Degn (2)
Applicant is inventor:
Tech fields:
propeller (56) · propulsion (16) · Propellers (10) · subsystem (5) · Airplane (5) · helicopter (4) · metal (4) · None (3) · stability (3) · parachute (3) · Aerial propeller (3) · wood (3)
Full specification filed date:
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Related to aircraft:
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National tech categories: (Click arrow to add another value)
IPCs:
None (25) · IPC B64C11/16 (9) · IPC B64C11/34 (6) · IPC B64C11/00 (4) · IPC B64C11/20 (4) · IPC B64C11/04 (4) · IPC B64C27/04 (3) · IPC B64C11/06 (3) · IPC B64C11/36 (3) · IPC B64C11/32 (2) · IPC B64C11/24 (2)
CPCs:
None (16) · CPC B64C11/04 (7) · CPC B64C11/20 (6) · CPC B64C11/006 (5) · CPC B64C11/00 (5) · CPC B64C11/36 (4) · CPC B64C27/20 (3) · CPC B64C11/24 (3) · CPC B64C11/16 (3) · CPC B64C2700/6281 (3) · CPC B21D53/78 (2) · CPC B64C11/065 (2) · CPC B64C11/346 (2) · CPC B64C11/205 (2) · CPC B64C11/22 (2) · CPC B64C11/34 (2)
First filing:
Cites these patents:
Citations from after 1930:
Number of text pages:
Number of diagram pages:
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Showing below up to 81 results in range #1 to #81.

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