Drilldown: Patents

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Patents > Patent agent: None & CPCs: None & Number of claims: 4-20

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Applicant is inventor:
Tech fields:
airplane (142) · Design (84) · frame (79) · propellers (56) · stability (52) · propulsion (51) · LTA (48) · construction (48) · Whole (44) · subsystem (41) · Wings (33) · Airship (33) · Control (32) · aerodynamics (27) · None (26) · propeller (25) · flapping (21) · helicopter (19) · navigation (19) · automatic stability (18)
Full specification filed date:
Application number:
None (210) · 25941D (4)
Granted:
Supplementary to patent:
None (221) · Patent US-1903-821393 (4) · Patent SE-1906-23283 (4) · Patent GB-1909-2111 (4) · Patent GB-1908-4519 (4) · Patent AT-1911-57225 (4) · Patent CH-1899-18666 (2) · Patent GB-1909-26034 (2) · Patent DE-1910-06-18 Carl Hanschke (2) · Patent DE-1909-220044 (2) · Patent DE-1908-227242 (2) · Patent DE-1907-214228 (2) · Patent DE-1895-98580 (2) · Patent ES-1911-50083 (2) · Patent AT-1912-64662 (2) · Patent 1915-11-05 Käthe Paulus (2)
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National tech categories:
HU V/h (169) · AT 77d (52) · None (47) · DK 77 (16) · DE 77 (8) · AU 90.3 (6) · AU 90.5 (4) · AT 74 (3) · CA 244/31 (2) · GB 4 propel & steer (2) · DE 42c.35 (2) · AT 37a (2) · CA 244/29 (2) · CA 244/12 (2) · CA 244/35 (2) · DE 77h.15 (2) · AT 65b (2) · DE 77h (2)
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First filing:
Citations from after 1930:
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