Drilldown: Patents

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Patents > Office: US & CPCs : CPC B64C23/005 or None

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Office: (Click arrow to add another value)
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Tech fields:
None (351) · airplane (67) · propulsion (59) · navigation (44) · LTA (39) · propeller (38) · frame (37) · helicopter (32) · stability (27) · parachute (19) · military (19) · takeoff (18) · marine (18) · rudder (15) · hybrid (15) · car (14) · landing (12) · safety (9)
Application number:
None (419) · navigation (9) · propeller (7) · rudder (6) · stability (4) · propulsion (4) · airfoil (3) · frame (3) · flapping (2) · wheels (2)
Granted:
Supplementary to patent:
None (564) · 1 (8) · navigation (3) · 1911-05-09 (2) · landing (2) · 1912-01-23 (2) · 1911-02-14 (2)
Patent agent:
None (530) · 1 (11) · Munn & Co. (8) · Victor J. Evans (7) · Joshua R. H. Potts (2) · None (2) · Paul & Paul (2) · C. A. Snow & Co. (2) · Howson and Howson (2)
Assigned to:
None (562) · 1 (35) · Dewey Corporation (2) · Syracuse, NY (2)
National tech categories:
None (188) · USPC 244/6 (47) · USPC 244/139 (23) · USPC 244/66 (22) · USPC 244/147 (19) · USPC 244/153R (17) · USPC 244/12.1 (17) · USPC 244/142 (16) · USPC 244/149 (13) · USPC 244/63 (11) · USPC 244/3.23 (11) · USPC 244/80 (10) · USPC 244/53A (10) · USPC 244/119 (9) · USPC 244/65 (9) · USPC 244/60 (9) · USPC 244/144 (9) · USPC 244/3.1 (6) · 1 (6)
CPCs: (Click arrow to add another value)
First filing:
Citations from after 1930:

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