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Patents > Inventor country : CH or DE or HU & Applicant type : Hermann Burkardt or INDIV & CPCs : CPC B64B1/40 or CPC B64C23/005 or CPC B64C2700/6212 or None & Number of text pages: 1-2

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Office:
Inventor country: (Click arrow to add another value)
Applicant type: (Click arrow to add another value)
Applicant is inventor:
Tech fields:
Airplane (115) · LTA (107) · design (71) · propulsion (68) · Frame (67) · subsystem (65) · Propellers (61) · stability (49) · Construction (48) · airship (46) · wings (36) · propeller (34) · balloon (29) · aerodynamics (29) · whole (28) · gas (27) · control (21) · automatic stability (20) · lift (20)
Full specification filed date:
Application number:
None (280)
Granted:
Supplementary to patent:
None (296) · Patent HU-1901-24148 (4) · Patent DE-1908-221549 (4) · Patent DE-1910-06-18 Carl Hanschke (3) · Patent DE-1909-220044 (3) · Patent DE-1909-02-25 Hugo Erdmann (3) · Patent HU-1909-49726 (3) · Patent DE-1913-287314 (3)
Related to aircraft:
Patent agent:
None (337) · E. Blum & Co. (7) · Marks & Clerk (4) · Boult, Wade & Tennant (3) · Ferdinand Klostermann (3) · W. P. Thompson & Co. (3) · H. Kirchhofer (3) · Boult, Wade & Kilburn (3) · A. Ritter (3) · Lavoix et Moses (2) · G. F. Redfern & Co. (2) · Wilhelm Reinhard (2) · J. Hans (2) · Dr. Klingler & Geier (2) · Chatwin, Herschell & Co. (2) · E. Blétry (2) · Naegeli & Co. (2)
Assigned to:
National tech categories:
HU V/h (131) · AT 77d (67) · None (39) · DE 77 (30) · DE 77h (16) · FR 6.4 (13) · DK 77 (12) · DE 77h.5 (9) · RU Group V (9) · DE 77h.6 (8) · CH 129b (8) · CH 129a (8) · DE 77h.15 (7) · CH 115 (6) · AT 37a (4) · CH 129c (4) · DE 77h.4 (4) · FR 10.1 (4) · DE 77h.3 (4) · AT 46b (3)
IPCs:
None (369) · IPC B64C23/00 (10) · IPC B64B1/40 (9) · IPC B64C5/04 (4) · IPC B64C17/00 (3) · IPC B64B1/00 (2) · IPC B64C33/02 (2) · IPC B64C39/00 (2) · IPC B64B1/50 (2) · IPC B64C11/16 (2)
CPCs: (Click arrow to add another value)
First filing:
Citations from after 1930:
Number of text pages:
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