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Patents > Inventor country: DE & Tech fields : navigation or rotors

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Office:
Inventors:
None (21) · Richard Wilcke (6) · Albert Graff (6) · Gustav Kerwat (3) · Paul Lehmann (3) · Wilhelm Jacob Hoffmann (3) · Hugo Lentz (2) · Georg von dem Borne (2) · Ferdinand von Zeppelin (2) · Alfred K. R. A. Krakow (2) · Charles Bellens (2) · Ramiro de Palacios (2) · Reinhard Mannesmann (2) · Ernst Georg August Baumgarten (2) · August Schlegelmilch (2) · Wilhelm Goetjes (2) · Johann Schütte (2)
Inventor country: (Click arrow to add another value)
Applicant person:
None (64) · Richard Wilcke (3) · Gustav Kerwat (3) · Paul Lehmann (3) · Albert Graff (2) · August Schlegelmilch (2)
Applicant is inventor:
Tech fields: (Click arrow to add another value)
Full specification filed date:
Application number:
None (81)
Granted:
Related to aircraft:
National tech categories:
None (27) · DE 77 (16) · FR 6.4 (16) · DE 77h.5 (6) · DE 77h.15 (6) · GB 4 propel & steer (4) · DK 77 (4) · DE 77h (4) · AT 77d (3) · HU V/h (3) · DE 42c.6 (2) · DE 42c.41 (2) · DE 77h.6 (2) · GB 4 with buoyant (2)
IPCs:
None (62) · IPC B64B1/00 (11) · IPC B64B1/62 (5) · IPC B64B1/58 (5) · IPC B64C3/38 (3) · IPC B64C23/00 (3) · IPC CPC B64C13/00 (2) · IPC B64B1/40 (2) · IPC B64C33/02 (2) · IPC B64C19/00 (2) · IPC G01C9/00 (2) · IPC B64C3/52 (2)
CPCs:
None (53) · CPC B64B1/00 (13) · CPC B64B1/62 (6) · CPC B64B1/58 (5) · CPC B64C3/385 (5) · CPC B64C13/00 (5) · CPC B64C33/02 (4) · CPC B64C17/00 (4) · CPC B64C23/005 (3) · CPC B64B1/40 (2) · CPC B64B1/12 (2) · CPC B64C2700/6295 (2) · CPC B64C2700/6256 (2) · CPC G01C9/005 (2) · CPC B64C3/52 (2)
First filing:
Cites these patents:
Citations from after 1930:
Number of text pages:
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