Drilldown: Patents

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Patents > Tech fields: propeller & Patent agent: None & Citations from after 1930: None

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Applicant person:
None (189) · Christian Lorenzen (7) · Rudolf Krocker (4) · Richard Czygan (3) · Louis Coutant Badeau (3) · Guido Antoni (3) · Paul Frederik Degn (3) · Antoine-Padoue Filippi (3) · Hugo Hueckel (3) · Ugo Antoni (3) · Albert Livingstone Blackman (3)
Applicant is inventor:
Tech fields: (Click arrow to add another value)
Full specification filed date:
Application number:
None (286)
Granted:
Supplementary to patent:
None (326) · Patent DE-1917-305040 (3) · Patent GB-1909-12556 (3) · Patent DE-1899-123884 (3) · Patent DE-1894-76727 (3) · Patent GB-1908-13809 (3) · Patent HU-1901-22471 (2) · Patent DE-1916-332540 (2) · Patent DE-1917-323641 (2) · Patent US-1890-432860 (2) · Patent DE-1893-73799 (2) · Patent FR-1902-328044 (2) · Patent FR-1904-340154 (2) · Patent DE-1913-290120 (2)
Related to aircraft:
Patent agent: (Click arrow to add another value)
National tech categories:
None (85) · DE 77h.6 (42) · AT 77d (21) · DE 77 (19) · IT 8 (18) · FR 6.4 (11) · GB 4 propel & steer (10) · DE 77h.5 (10) · DE 77h (9) · USPC 244/51 (9) · USPC 244/30 (8) · RU Group V (8) · USPC 244/13 (5) · GB 4 with buoyant (5) · USPC 244/73R (5) · USPC 244/99 (5) · GB 4 (5) · CA 244/24 (4) · USPC 244/25 (4)
IPCs:
None (303) · IPC B64B1/00 (14) · IPC B64C11/16 (9) · IPC B64C39/00 (7) · IPC B64C11/00 (7) · IPC B64C11/20 (5) · IPC B64C3/14 (4) · IPC B64C11/34 (4) · IPC B64B1/58 (3) · IPC B64C17/00 (3)
CPCs:
None (193) · CPC B64B1/00 (28) · CPC B64C11/006 (18) · CPC B64C2700/6295 (9) · CPC B64C11/00 (8) · CPC B64C9/00 (8) · CPC B64C23/005 (7) · CPC B64C11/48 (6) · CPC B64C11/04 (5) · CPC B64C17/00 (5) · CPC B64C27/12 (5) · CPC B64C3/14 (5) · CPC B64C11/20 (4) · CPC B64C11/24 (4) · CPC B64C29/0025 (4) · CPC B63H1/12 (4)
First filing:
Citations from after 1930:
Number of diagram pages:

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