Drilldown: Patents

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Patents > Patent agent: Victor J. Evans & Assigned to: None

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Office:
Inventors:
Robert P. Hall (2) · George Lehberger (2) · Ralph P. Fox (2) · Samuel S. Yarrington (2)
Inventor country:
Applicant person:
Robert P. Hall (2) · George Lehberger (2) · Ralph P. Fox (2) · Samuel S. Yarrington (2)
Applicant is inventor:
Tech fields:
None (15) · stability (14) · airplane (13) · frame (12) · rudder (10) · propeller (10) · navigation (9) · hybrid (7) · safety (6) · Propulsion (6) · helicopter (4) · LTA (4) · parachute (4) · takeoff (4) · wheels (3) · landing (3) · airfoil (3)
Full specification filed date:
Application number:
None (6)
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National tech categories:
None (9) · USPC 244/80 (6) · USPC 244/104R (4) · USPC 244/45R (4) · USPC 244/139 (3) · USPC 244/79 (3) · USPC 244/90R (2) · USPC 244/73R (2) · USPC 244/66 (2) · USPC 244/100R (2) · USPC 244/51 (2) · USPC 244/131 (2)
CPCs:
CPC B64C17/00 (10) · CPC B64C23/005 (6) · CPC B64B1/00 (4) · CPC B64C9/00 (3) · CPC B64C2700/6295 (3) · CPC B64C27/82 (3) · CPC B64C17/06 (3) · CPC B64C33/02 (2) · CPC B64C29/0033 (2) · CPC B64C39/08 (2) · CPC Y02E10/74 (2) · CPC Y02E10/28 (2)
First filing:
Cites these patents:
Citations from after 1930:
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