Drilldown: Patents

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

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Inventor country: (Click arrow to add another value)
Applicant type: (Click arrow to add another value)
Applicant is inventor:
Tech fields:
airplane (184) · design (114) · LTA (104) · Frame (97) · propellers (94) · propulsion (91) · stability (88) · subsystem (87) · Construction (73) · Airship (65) · None (62) · wings (61) · aerodynamics (53) · whole (37) · control (36) · propeller (36) · balloon (35) · navigation (33) · automatic stability (32) · lift (30)
Full specification filed date:
Application number:
Granted:
Publication date:
Supplementary to patent:
None (433) · Patent HU-1901-24148 (6) · Patent DE-1910-06-18 Carl Hanschke (4) · Patent CH-1910-52044 (4) · Patent DE-1907-214228 (4) · Patent FR-1909-410140 (4) · Patent DE-1908-221549 (4) · Patent DE-1909-220044 (4) · Patent DE-1903-160742 (3) · Patent DE-1909-02-25 Hugo Erdmann (3) · Patent DE-1909-232158 (3) · Patent DE-1909-Wilcke-Graff (3) · Patent DE-1898-126955 (3) · Patent DE-1913-301564 (3)
Related to aircraft:
Patent agent:
None (508) · E. Blum & Co. (12) · Marks & Clerk (7) · W. P. Thompson & Co.‎ (7) · Ferdinand Klostermann (4) · Haseltine, Lake & Co. (4) · Boult, Wade & Kilburn (4) · Boult, Wade & Tennant (4) · Schwab (4) · G. F. Redfern & Co. (3) · H. Kirchhofer (3) · A. Ritter (3)
Assigned to:
National tech categories:
HU V/h (207) · None (171) · AT 77d (83) · FR 6.4 (20) · CH 129b (16) · DK 77 (14) · RU Group V (13) · DE 77h (11) · CH 129a (8) · MX F. III (7) · FR 10.1 (5) · DE 77h.5 (4) · RU 62b (4) · IT 8 (4) · AT 37a (4) · CH 129c (4)
CPCs: (Click arrow to add another value)
First filing:
Citations from after 1930:
Number of diagram pages:

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