Drilldown: Patents

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Patents > Inventor country : CH or DE or ES or HU or NL & Applicant type : Hermann Burkardt or INDIV & Grant date: 1900 - 1999 & CPCs : CPC B64B1/40 or CPC B64C23/005 or None & Number of diagram pages: 1-8

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Office:
Inventor country: (Click arrow to add another value)
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Applicant is inventor:
Tech fields:
Airplane (152) · design (106) · Propellers (83) · Frame (81) · subsystem (71) · LTA (69) · stability (69) · propulsion (68) · construction (62) · Airship (53) · Wings (49) · aerodynamics (46) · whole (33) · Lift (29) · control (28) · automatic stability (27) · propeller (26) · hybrid (22) · Flapping (21) · None (20)
Full specification filed date:
Application number:
None (240)
Granted:
Supplementary to patent:
None (279) · Patent DE-1907-214228 (4) · Patent FR-1909-410140 (4) · Patent DE-1909-220044 (4) · Patent DE-1910-06-18 Carl Hanschke (4) · Patent DE-1913-301564 (3) · Patent CH-1910-52044 (3) · Patent DE-1903-160742 (3) · Patent DE-1898-126955 (3) · Patent HU-1901-24148 (3)
Related to aircraft:
Patent agent:
None (332) · E. Blum & Co. (11) · Marks & Clerk (6) · W. P. Thompson & Co. (5) · Schwab (4) · Boult, Wade & Kilburn (4) · Ferdinand Klostermann (4) · H. Kirchhofer (3) · Boult, Wade & Tennant (3) · G. F. Redfern & Co. (3) · Haseltine, Lake & Co. (3)
Assigned to:
National tech categories:
HU V/h (185) · AT 77d (71) · None (54) · FR 6.4 (16) · CH 129b (15) · DK 77 (14) · RU Group V (10) · DE 77h (7) · CH 129a (5) · AT 37a (4) · FR 10.1 (4) · CH 129c (4) · AT 46b (3) · DE 77h.5 (3) · CH 115 (2) · GB 4 with buoyant (2) · HU VII/a (2) · DE 77h.4 (2) · AT 77b (2)
CPCs: (Click arrow to add another value)
First filing:
Citations from after 1930:
Number of text pages:
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