Drilldown: Patents

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Patents > Office : LU or US & Number of claims: 3-4

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Office: (Click arrow to add another value)
Applicant is inventor:
Tech fields:
airplane (94) · LTA (89) · frame (87) · None (86) · propulsion (79) · Propeller (72) · stability (72) · navigation (53) · rudder (35) · flapping (32) · parachute (31) · balloon (28) · hybrid (25) · marine (24) · helicopter (24) · safety (24) · car (23) · military (21) · control (21) · Propellers (20)
Full specification filed date:
Application number:
Granted:
Supplementary to patent:
None (490) · 1 (2) · Patent FR-1909-402649 (2)
Related to aircraft:
Assigned to:
None (479) · 1 (2) · Magneso Calcite Fire-Proof Company (2) · Albert L. Watters (2) · Sperry Gyroscope Company (2)
IPCs:
None (379) · IPC B64B1/00 (25) · IPC B64C39/00 (15) · IPC B64C31/00 (11) · IPC B64C3/00 (10) · IPC B64C31/06 (10) · IPC B64C33/00 (9) · IPC B64C13/00 (7) · IPC B64C3/38 (6) · IPC B64C25/00 (5) · IPC B64D17/00 (4) · IPC B64C13/12 (4) · IPC F42B10/00 (4) · IPC B64C17/00 (4) · IPC B64C1/00 (4) · IPC B64C11/00 (4) · IPC B64C27/00 (3) · IPC B64C5/04 (3)
First filing:
Citations from after 1930:
Number of claims:

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