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Patents > Office : CA or DK or ES

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Office: (Click arrow to add another value)
Inventor country:
Applicant person:
None (102) · Alfred John Macy (8) · Louis Constantin (6) · Walter George Tarrant (4) · Comte Antoine Apraxine (4) · Leonardo Torres Quevedo (4) · Louis Brennan (4) · Joseph Wetterwald (4) · Thomas Sopwith (4)
Applicant is inventor:
Tech fields:
airplane (94) · LTA (79) · frame (58) · propulsion (50) · Design (49) · balloon (44) · navigation (43) · stability (43) · propellers (34) · propeller (27) · aerodynamics (25) · rudder (25) · wings (24) · construction (24) · subsystem (24) · control (21) · None (20) · marine (17) · Lift (17)
Full specification filed date:
Granted:
Supplementary to patent:
None (163) · Patent US-1909-970771 (3) · Patent HU-1901-24148 (3) · Patent GB-1908-4519 (3) · Patent GB-1911-12232‎‎ (3) · Patent GB-1909-2111 (3)
Related to aircraft:
National tech categories:
None (165) · DK 77 (45) · CA 244/24 (8) · DK 65 (6) · CA 244/12 (6) · CA 244/35 (5) · CA 244/31 (4) · CA 341/80 (4) · CA 244/10 (4) · CA 46/28 (3) · CA 244/4 (3) · DE 77 (3) · CA 244/34 (3) · CA 244/11 (3) · CA 244/29 (3)
First filing:
Cites these patents:
Citations from after 1930:
Number of diagram pages:

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