Drilldown: Patents

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Patents > Office: DE & Applicant is inventor: Yes & IPCs: None

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Office: (Click arrow to add another value)
Applicant person:
None (362) · August Riedinger (4) · Ferdinand von Zeppelin (3) · Emil Lehmann (3) · Otto Lilienthal (3) · Heinrich Strieffler (3) · Richard Czygan (3) · Joseph Hofmann (3) · Paul Frederik Degn (3) · Georg Wellner (3)
Applicant is inventor: (Click arrow to add another value)
Tech fields:
None (223) · LTA (104) · propulsion (51) · propeller (44) · balloon (43) · frame (39) · navigation (38) · airplane (36) · stability (25) · car (23) · subsystem (20) · gas (17) · design (16) · flapping (15) · airship (13) · whole (13) · wings (12) · dirigible (12) · instrument (11)
Full specification filed date:
Granted:
Supplementary to patent:
None (459) · Patent DE-1908-227242 (3) · Patent DE-1904-173378 (3) · Patent DE-1893-73799 (2)
Related to aircraft:
Assigned to:
National tech categories:
None (245) · DE 77 (90) · DE 77h (53) · DE 77h.5 (24) · DE 77h.6 (22) · DE 77h.15 (14) · DE 77h.4 (10) · DE 77h.9 (7) · DE 77h.3 (7) · DE 77h.10 (5) · DE 77h.2 (5) · DE 77h.7 (4) · DE 77h.12 (2) · DE 42c.41 (2) · DE 62b (2)
IPCs: (Click arrow to add another value)
CPCs:
None (398) · CPC B64B1/00 (17) · CPC B64C33/02 (16) · CPC B64B1/58 (8) · CPC B64C11/006 (6) · CPC B64B1/30 (5) · CPC B64B1/40 (4) · CPC B64C17/00 (4) · CPC B64C9/00 (3) · CPC B64C11/04 (3) · CPC B64C11/00 (3) · CPC B64C23/005 (3) · CPC B64C33/00 (3) · CPC B64C31/04 (3) · CPC B64C2700/6212 (3) · CPC B64C27/00 (3)
First filing:
Citations from after 1930:
Number of text pages:
Number of diagram pages:

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