Drilldown: Patents

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Patents > Office : DE or Other & National tech categories : FR 6.3 or USPC 244/30 or None & IPCs : IPC B64C3/54 or IPC B64C33/00

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Office: (Click arrow to add another value)
Inventors:
None (4) · Franz Xaver Wels (2) · Robert Welford (2) · Richard A. Engler (2)
Inventor country:
Applicant person:
None (4) · Franz Xaver Wels (2) · Robert Welford (2) · Richard A. Engler (2) · William Phillips Thompson (2)
Applicant type:
Applicant is inventor:
Tech fields:
None (13) · design (10) · wings (10) · Airplane (9) · flapping (8) · stability (8) · control (7) · Propulsion (6) · ornithopter (6) · HTA (5) · Aerodynamics (5) · hybrid (4) · Lift (4) · navigation (3) · glider (3) · frame (3) · rudder (3) · Construction (3)
Full specification filed date:
Application number:
None (2)
Granted:
Publication date:
Related to aircraft:
Assigned to:
National tech categories: (Click arrow to add another value)
IPCs: (Click arrow to add another value)
First filing:
Citations from after 1930:
Number of diagram pages:

Showing below up to 48 results in range #1 to #48.

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