Drilldown: Patents

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Patents > Inventor country: DE & Filing date: 1920

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Year filed:
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Year granted:
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Office:
DE (1) · ES (1) · FR (5) · GB (12)
Inventors:
None (14) · Anton Flettner (1) · Anton Heinen (1) · Deutsche Flugzeug Werke (1) · Gabriel Letsch (1) · Karl Schmittner (1)
Inventor country: (Click arrow to add another value)
Inventor location:
None (19)
Applicant person:
None (16) · Anton Flettner (1) · Anton Heinen (1) · Karl Schmittner (1)
Applicant firm:
None (3) · AGO Flugzeugwerke G. m. b. H. (2) · Ballonhüllen Gesellschaft m.b.H. (2) · Ballonhüllen Gesellschaft m.b.H. mit Beschränkter Haftung (3) · Daimler-Motoren-Gesellschaft (1) · Deutsche Flugzeug-Werke G. m. b. H. (1) · Gothaer Waggonfabrik A. G.‎ (1) · Luftfahrzeugbau Schütte-Lanz (1) · Vickers Limited (1) · Zeppelin-Werke G.m.b.H. (4)
Applicant type:
None (3) · COMPANY (12) · COMPANY + INDIV (1) · COMPANY+INDIV (2) · INDIV (1)
Applicant is inventor:
None (11) · No (1) · Yes (7)
Tech fields:
None (19)
Filing date:
February 1920 (1) · March 1920 (2) · April 1920 (1) · June 1920 (2) · July 1920 (11) · August 1920 (1) · November 1920 (1)
Full specification filed date:
None (19)
Application number:
None (19)
Grant date:
June 1920 (1) · August 1920 (1) · September 1920 (2) · December 1920 (3) · January 1921 (1) · April 1921 (1) · May 1921 (1) · June 1921 (3) · October 1921 (1) · November 1921 (1)
Granted:
No (3) · Yes (16)
Publication date:
None (11) · 1920 (2) · 1921 (5) · 1924 (1)
Supplementary to patent:
None (4) · Patent DE-1915-05-31 Daimler Motoren-Gesellschaft (1) · Patent DE-1915-10-06 AGO Flugzeugwerke G. m. b. H. (1) · Patent DE-1915-299150 (1) · Patent DE-1915-339218 (1) · Patent DE-1916-03-03 Ballonhüllen Gesellschaft m.b.H. (1) · Patent DE-1916-03-04 Ballonhüllen Gesellschaft m.b.H. mit Beschränkter Haftung‎ (1) · Patent DE-1916-349065 (1) · Patent DE-1917-09-23 Ballonhüllen Gesellschaft m.b.H. mit Beschränkter Haftung‎ (1) · Patent DE-1917-306449 (1) · Patent DE-1917-Zeppelin-Werke (1) · Patent DE-1918-02-20 Ballonhüllen Gesellschaft m.b.H. (1) · Patent DE-1918-03-10 Karl Schmittner or Ballonhüllen Gesellschaft m.b.H. (1) · Patent DE-1918-10-10 Ballonhüllen Gesellschaft m.b.H. (1) · Patent DE-1918-10-24 Anton Heinen or Ballonhüllen Gesellschaft m.b.H. (1) · Patent DE-1918-388537 (1) · Patent DE-1919-319462 (1) · Patent GB-1919-07-29 Vickers Limited (1) · Patent GB-1920-04-06 Vickers Limited (1)
Related to aircraft:
1 (13) · Yes (6)
Patent agent:
None (5) · F. Harlé et G. Bruneton (2) · Fell & James (1) · Haseltine, Lake & Co. (1) · Herbert Haddan & Co. (2) · Jensen & Son (2) · Paul Blum (1) · S. Sokal (1) · Société G. Breton, P. Audy, J. Rousset, A. Vergé (1) · W. P. Thompson & Co. (3)
Assigned to:
None (19)
National tech categories:
None (14) · DE 77h.9 (1) · FR 6.4 (4)
IPCs:
None (2) · IPC B64B1/58 (1) · IPC B64C1/30 (1) · IPC B64C3/00 (2) · IPC B64C3/56 (1) · IPC B64C35/00 (2) · IPC B64C9/10 (1) · IPC B64D17/36 (1) · IPC B64D17/52 (1) · IPC B64D17/80 (2) · IPC B64D27/04 (3) · IPC B64D31/04 (1) · IPC B64D7/02 (1) · IPC B64F1/22 (2) · IPC G01M15/02 (1)
CPCs:
None (2) · B64D31/04 (1) · CPC B64D27/04 (1) · CPC B64B1/58 (1) · CPC B64C1/30 (1) · CPC B64C3/00 (2) · CPC B64C3/56 (1) · CPC B64C35/00 (1) · CPC B64C35/008 (1) · CPC B64C9/10 (1) · CPC B64D17/36 (1) · CPC B64D17/52 (1) · CPC B64D17/80 (2) · CPC B64D27/04 (2) · CPC B64D7/02 (1) · CPC B64F1/221 (2) · CPC G01M15/02 (1)
Family year:
None (5) · 1915 (3) · 1916 (3) · 1917 (1) · 1918 (5) · 1919 (2)
First filing:
None (11) · No (8)
Cites these patents:
None (19)
Citations from after 1930:
None (19)
Number of text pages:
None (1) · 1 (3) · 2 (11) · 3 (2) · 4 (2)
Number of claims:
None (2) · 1 - 2 (3) · 2 - 4 (8) · 4 - 7 (6)
Number of diagram pages:
None (2) · 1 (13) · 2 (3)
Number of figures:
None (2) · 1 - 4 (9) · 4 - 8 (7)

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