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Patents > Inventor country : CH or DE or ES or HU or NL & Applicant type : COMPANY+INDIV or 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 (168) · design (108) · LTA (101) · frame (89) · propellers (88) · Subsystem (85) · Stability (82) · propulsion (77) · Construction (66) · Airship (62) · wings (57) · aerodynamics (50) · None (46) · whole (36) · control (32) · Automatic stability (30) · navigation (29) · propeller (29) · balloon (29) · lift (29)
Full specification filed date:
Application number:
None (310)
Granted:
Supplementary to patent:
None (359) · Patent HU-1901-24148 (6) · Patent DE-1909-220044 (4) · Patent DE-1908-221549 (4) · Patent DE-1907-214228 (4) · Patent FR-1909-410140 (4) · Patent DE-1910-06-18 Carl Hanschke (4) · Patent CH-1910-52044 (4) · Patent DE-1909-232158 (3) · Patent DE-1909-Wilcke-Graff (3) · Patent DE-1907-215602 (3) · Patent DE-1903-160742 (3) · Patent DE-1898-126955 (3) · Patent DE-1909-02-25 Hugo Erdmann (3) · Patent DE-1913-301564 (3)
Related to aircraft:
Patent agent:
None (432) · E. Blum & Co. (12) · W. P. Thompson & Co. (6) · Marks & Clerk (6) · 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)
National tech categories:
HU V/h (204) · None (110) · AT 77d (79) · FR 6.4 (20) · CH 129b (16) · DK 77 (14) · RU Group V (11) · DE 77h (9) · CH 129a (7) · FR 10.1 (5) · AT 37a (4) · CH 129c (4) · IT 8 (3) · AT 46b (3) · DE 77h.5 (3) · GB 4 with buoyant (3)
CPCs: (Click arrow to add another value)
First filing:
Citations from after 1930:
Number of text pages:
Number of diagram pages:

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