Drilldown: Patents

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Patents > Tech fields : Flapping or propeller & Number of claims: 3

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Office:
Inventors:
None (3) · Philippe Delbert (3) · Christian Lorenzen (2) · Edward Smethurst (2) · Franz Xaver Wels (2) · Frederick William Hutchinson Hutchinson (2) · Ludwig Schmidl (2) · Alois Laube Jr. (2) · Oliver K. Chance (2)
Inventor country:
Applicant person:
None (32) · Edward Smethurst (2) · Ludwig Schmidl (2) · Oliver K. Chance (2) · Frederick William Hutchinson Hutchinson (2) · Franz Xaver Wels (2) · Philippe Delbert (2) · Alois Laube Jr. (2)
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Application number:
None (59)
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Related to aircraft:
Patent agent:
None (46) · Victor J. Evans (2) · Franklin H. Hough (2) · Munn & Co. (2) · Hy. Fairbrother (2) · Schwab (2) · J. Bonnet-Thirion (2) · W. P. Thompson & Co. (2)
National tech categories:
None (25) · FR 6.4 (9) · AT 77d (9) · USPC 244/6 (5) · DE 77h.6 (4) · USPC 244/22 (4) · HU V/h (4) · USPC 244/28 (4) · USPC 244/51 (3) · GB 4 propel & steer (3)
CPCs:
None (35) · CPC B64B1/00 (11) · CPC B64C33/02 (9) · CPC B64C23/005 (7) · CPC B64C31/04 (4) · CPC B64C11/006 (4) · CPC B64C11/16 (3) · CPC B64C33/00 (3) · CPC B64C3/14 (2) · CPC B64C11/04 (2) · CPC B64C39/003 (2) · CPC B64C9/00 (2) · CPC B64C9/38 (2) · CPC B63H1/26 (2)
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Cites these patents:
Citations from after 1930:
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