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Patents > National tech categories : DE 77 or DE 77h.6 or GB 4 with buoyant

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Office:
Inventors:
None (21) · Jakob Haw (7) · Ernst Georg August Baumgarten (6) · Christian Lorenzen (6) · Hellmuth Hirth (4) · F. Gaebert (4) · Otto Schmidt (3) · Carl Alfred Johansson (3)
Applicant person:
None (122) · Ernst Georg August Baumgarten (6) · Jakob Haw (5) · F. Gaebert (3) · Carl Alfred Johansson (3)
Applicant is inventor:
Tech fields:
LTA (123) · propeller (85) · propulsion (75) · balloon (46) · navigation (40) · frame (33) · car (31) · whole (21) · rudder (15) · None (15) · marine (15) · electricity (14) · stability (14) · airship (14) · metal (14) · parachute (14) · ascension (13) · control (12) · propellers (11)
Full specification filed date:
Granted:
Supplementary to patent:
None (226) · Patent NO-1915-12-15 Carl Alfred Johansson (2) · Patent FR-1908-405961 (2) · Patent GB-1886-8051 (2) · Patent DE-1917-305040 (2) · Patent NO-1891-2589 (2)
Related to aircraft:
Assigned to:
National tech categories: (Click arrow to add another value)
IPCs:
None (158) · IPC B64C33/02 (12) · IPC B64B1/00 (11) · IPC B64C11/16 (10) · IPC B64B1/58 (8) · IPC B64C11/34 (6) · IPC B64C11/00 (6) · IPC B64C27/04 (5) · IPC B64B1/40 (5) · IPC B64C23/00 (4) · IPC B64C11/20 (4) · IPC B64C31/06 (4) · IPC B64C11/04 (4) · IPC B64B1/06 (3) · IPC B64C11/06 (3) · IPC B64C39/00 (3) · IPC B64C11/36 (3)
CPCs:
None (133) · CPC B64B1/00 (19) · CPC B64C33/02 (13) · CPC B64B1/40 (9) · CPC B64C11/04 (7) · CPC B64B1/58 (7) · CPC B64C11/20 (6) · CPC B64C11/006 (6) · CPC B64C11/00 (6) · CPC B64C23/005 (5) · CPC B64C2700/6273 (4) · CPC B64C33/00 (4) · CPC B64B1/30 (4) · CPC B64C2700/6281 (4) · CPC B64C11/36 (4) · CPC B64C11/16 (3) · CPC B64C11/24 (3) · CPC A63H27/08 (3) · CPC B64C27/20 (3)
First filing:
Citations from after 1930:
Number of text pages:
Number of diagram pages:

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