Drilldown: Patents
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Use the filters below to narrow your results.
Year filed:
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Tech fields:
propulsion (80) ·
flapping (60) ·
None (57) ·
propellers (37) ·
wings (35) ·
airplane (29) ·
propeller (29) ·
design (25) ·
navigation (23) ·
LTA (22) ·
frame (22) ·
ornithopter (22) ·
marine (14) ·
control (11) ·
aerodynamics (11) ·
Sustentation (10) ·
hybrid (10) ·
subsystem (9) ·
heavier-than-air (9) ·
rudder (9)
Filing date:
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Related to aircraft: (Click arrow to add another value)
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National tech categories:
None (67) ·
CH 129c (1) ·
DE 62b (1) ·
DE 77 (14) ·
DE 77h (3) ·
DE 77h.10 (2) ·
DE 77h.6 (3) ·
DE 77h.8 (1) ·
DE62b (1) ·
FR 2 (1) ·
FR 6.2 (8) ·
FR 6.3 (9) ·
FR 6.4 (74) ·
GB 4 propel & steer (2) ·
GB 4 propelling (2) ·
GB 4 steering (1) ·
USPC 185/40R (1) ·
USPC 185/9 (1) ·
USPC 244/133 (1) ·
USPC 244/22 (44) ·
USPC 244/222 (1) ·
USPC 244/226 (1) ·
USPC 244/50 (1) ·
USPC 244/71 (4) ·
USPC 244/72 (10) ·
USPC 416/108 (2) ·
USPC 416/113 (5) ·
USPC 416/116 (2) ·
USPC 416/202 (1) ·
USPC 446/35 (1) ·
USPC 74/665B (1)
IPCs:
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Citations from after 1930:
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Showing below up to 250 results in range #1 to #250.
