Drilldown: Patents

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Patents > Inventor country: US & Applicant type : Hermann Burkardt or INDIV or INDIV + COMPANY & National tech categories : FR 5 or None & Cites these patents: None

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Tech fields:
None (689) · Airplane (67) · propeller (60) · LTA (56) · stability (52) · propellers (44) · propulsion (38) · frame (36) · navigation (32) · design (28) · rudder (27) · construction (26) · marine (25) · wings (24) · helicopter (21) · aerial propeller (21) · windmill (19) · paddle-wheel (19) · military (18) · hybrid (18)
Application number:
Granted:
Supplementary to patent:
None (1100) · Patent US-1913-1087946 (4) · Patent US-1909-970771 (4) · Patent US-1906-850616 (2) · Patent US-1914-1157636 (2) · Patent US-1914-1115457 (2) · Patent US-1913-1094989 (2) · Patent US-1913-04-21 George Raymond Lawrence (2) · Patent US-1911-1003530 (2) · Patent US-1908-12-14-Lee (2) · Patent US-1910-984076 (2)
Related to aircraft:
Assigned to:
None (1181) · Goodyear Tire and Rubber Company (2) · Magneso Calcite Fire-Proof Company (2) · Sperry Gyroscope Company (2)
National tech categories: (Click arrow to add another value)
IPCs:
None (1013) · IPC B64C17/00 (32) · IPC B64C39/00 (26) · IPC B64C1/00 (22) · IPC B64C3/00 (12) · IPC B64C23/00 (9) · IPC B64C35/00 (8) · IPC B64C27/04 (7) · IPC B64C13/00 (6) · IPC B62C5/04 (6) · IPC B64C5/04 (5) · IPC B64C27/10 (5) · IPC B64B1/58 (4) · IPC B64C33/00 (4) · IPC B64C11/20 (4) · IPC B64C33/02 (4) · IPC B64B1/00 (4) · IPC B64C3/38 (4) · IPC B64C3/42 (4)
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Citations from after 1930:
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