Drilldown: Patents

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Patents > Applicant firm: None & Tech fields: propeller & Number of figures: 4-6

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Office:
Inventors:
Thomas Augustus Dring (4) · Paul Petres (3) · Christian Lorenzen (3) · Spencer Heath (3) · Anthony O'Brate (3) · Josef Deixler (3) · Louis Gathmann (2) · Edward Smethurst (2) · Erik Emanuel Lindkvist (2) · Richard Czygan (2) · Charles W. Van Winkle (2) · Stewart Cairncross (2) · Harry Houlette Elliott (2) · André Gambin (2) · Alexander Liwentaal (2) · William John Hastings Beach (2)
Inventor country:
Applicant person:
None (47) · Spencer Heath (3) · Paul Petres (3) · Louis Gathmann (2) · Edward Smethurst (2) · Richard Czygan (2) · Christian Lorenzen (2) · Harry Houlette Elliott (2) · Thomas Augustus Dring (2) · Josef Deixler (2) · William John Hastings Beach (2) · Anthony O'Brate (2)
Applicant firm: (Click arrow to add another value)
Applicant is inventor:
Tech fields: (Click arrow to add another value)
Full specification filed date:
Application number:
None (71) · 25723218 (2)
Granted:
Related to aircraft:
Patent agent:
None (60) · None (7) · Munn & Co. (4) · Watson E. Coleman (3) · Victor J. Evans (3) · Alexander Denes (2) · Knight Bros. (2) · Chassevent (2) · J. E. Evans-Jackson & Co. (2) · Haseltine, Lake & Co. (2) · Abel & Imray (2) · 0 (2)
National tech categories:
None (54) · FR 6.4 (13) · AT 77d (6) · DE 77 (6) · USPC 244/64 (5) · DE 77h.6 (4) · USPC 244/60 (4) · FR 6.3 (4) · USPC 244/66 (4) · USPC 244/70 (3) · USPC 244/139 (3) · USPC 244/17.21 (3) · USPC 244/26 (3) · USPC 244/51 (3) · FR 6.2 (3) · USPC 244/87 (3)
IPCs:
None (121) · IPC B64C11/00 (7) · IPC B64B1/00 (7) · IPC B64C39/00 (6) · IPC B64C23/00 (3) · IPC B64C27/00 (3) · IPC B64C27/04 (3) · IPC B64B1/58 (3) · IPC B64C29/00 (2) · IPC B64C11/20 (2) · IPC B64C33/02 (2)
CPCs:
None (39) · CPC B64B1/00 (14) · CPC B64C11/006 (10) · CPC B64C23/005 (9) · CPC B64C11/48 (8) · CPC B64C2700/6295 (8) · CPC B64C39/005 (7) · CPC B64C27/82 (5) · CPC B63H1/12 (4) · CPC B64C39/08 (4) · CPC B64B1/58 (4)
First filing:
Citations from after 1930:
Number of text pages:
Number of diagram pages:
Number of figures:

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