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Patents > National tech categories : DE 77h.6 or GB 4 propel & steer or USPC 244/19

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Office:
Inventors:
None (20) · Jakob Haw (7) · Christian Lorenzen (6) · Hellmuth Hirth (4) · Ernest Wilson (3) · James Grieve Lorrain (3) · Joseph Hofmann (3) · Charles John Evans (2) · Hiram Stevens Maxim (2) · John MacHaffie (2) · John Marshall (2) · Lucien Chauvière (2) · Octave Chanute (2) · Patrick Young Alexander (2) · Paul Frederik Degn (2) · Erhard Brunsmann (2)
Inventor country:
Applicant person:
None (81) · Jakob Haw (5) · Joseph Hofmann (3) · Paul Frederik Degn (2) · Thomas Moy (2) · Hellmuth Hirth (2) · Hans Reissner (2) · Lucien Chauvière (2) · Alfred Julius Boult (2) · Christian Lorenzen (2)
Applicant is inventor:
Tech fields:
propeller (80) · propulsion (55) · navigation (25) · LTA (20) · subsystem (17) · marine (13) · frame (13) · Airplane (13) · electricity (12) · rudder (12) · Propellers (11) · car (10) · heavier-than-air (9) · stability (8) · balloon (8) · flapping (8) · steam (7) · ascension (7) · jet (7) · parachute (7)
Full specification filed date:
Granted:
Related to aircraft:
Assigned to:
National tech categories: (Click arrow to add another value)
IPCs:
None (95) · IPC B64C11/16 (9) · IPC B64C11/34 (6) · IPC B64C11/00 (4) · IPC B64C11/20 (4) · IPC B64C39/00 (4) · IPC B64C11/04 (4) · IPC B64C27/04 (3) · IPC B64C11/06 (3) · IPC B64C11/36 (3) · IPC B64C11/24 (2) · IPC B64C11/32 (2)
CPCs:
None (81) · CPC B64C11/04 (7) · CPC B64C11/20 (6) · CPC B64C11/006 (5) · CPC B64C11/00 (5) · CPC B64C11/36 (4) · CPC B64C39/005 (4) · CPC B64C11/16 (3) · CPC B64C27/20 (3) · CPC B64C11/24 (3) · CPC B64C2700/6281 (3) · CPC B21D53/78 (2) · CPC B64C11/346 (2) · CPC B64C11/34 (2) · CPC B64C11/22 (2) · CPC B64C11/205 (2) · CPC B64C11/065 (2) · CPC B64C33/02 (2)
First filing:
Cites these patents:
Citations from after 1930:
Number of text pages:
Number of diagram pages:

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