Drilldown: Patents

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Patents > Year filed: 1919 & First filing: None & Number of text pages: 1-2

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Year filed:
(There are no values for this filter)
Year granted:
None (1) · 1919 (2) · 1920 (5) · 1921 (1) · 1922 (1) · 1923 (1)
Office:
DE (4) · DK (2) · FR (3) · GB (1) · NL (1)
Inventors:
Adolf Rohrbach (1) · Alfred Merlue (1) · Carl Alfred Johansson (2) · Deutsche Flugzeug Werke (2) · Jakob Haw (1) · Marguerite de Lesseps (2) · Walter George Tarrant (2)
Inventor country:
DE (4) · FR (3) · GB (2) · NO (2)
Inventor location:
None (11)
Applicant person:
None (3) · Adolf Rohrbach (1) · Alfred Merlue (1) · Carl Alfred Johansson (2) · Marguerite de Lesseps (2) · Walter George Tarrant (2)
Applicant firm:
None (8) · Deutsche Flugzeug-Werke G. m. b. H. (2) · Zeppelinwerke G.m.b.H. (1)
Applicant type:
COMPANY (2) · COMPANY + INDIV (1) · INDIV (8)
Applicant is inventor:
None (3) · Yes (8)
Tech fields:
None (11)
Filing date:
January 1919 (1) · February 1919 (1) · March 1919 (2) · April 1919 (3) · May 1919 (1) · June 1919 (2) · October 1919 (1)
Full specification filed date:
None (11)
Application number:
None (9) · 11521 (1) · 27363D (1)
Grant date:
October 1919 (1) · November 1919 (1) · May 1920 (1) · August 1920 (1) · September 1920 (1) · March 1921 (1)
Granted:
None (1) · Yes (10)
Publication date:
None (3) · 1919 (1) · 1920 (6) · 1923 (1)
Supplementary to patent:
None (8) · Patent DE-1919-319462 (1) · Patent FR-1918-496760 (1) · Patent NO-1919-02-08 Carl Alfred Johansson (1)
Related to aircraft:
0.5 (1) · 1 (9) · Yes (1)
Patent agent:
None (8) · Dom. Casalonga (1) · Edwards & Co. (1) · Rigot et Prévost (1)
Assigned to:
None (11)
National tech categories:
None (1) · DE 77 (1) · DE 77h.5 (2) · DE 77h.6 (1) · DE 77h.7 (1) · DK 77 (1) · FR 6.3 (1) · FR 6.4 (2) · NL 62 (1) · NL 62.7 (1)
IPCs:
None (3) · IPC B63H1/12 (1) · IPC B64C1/00 (1) · IPC B64C1/06 (1) · IPC B64C1/14 (1) · IPC B64C11/00 (2) · IPC B64C11/16 (1) · IPC B64C11/18 (1) · IPC B64C3/00 (1) · IPC F16H21/14 (1)
CPCs:
None (3) · CPC B63H1/16 (1) · CPC B63H1/20 (1) · CPC B63H1/26 (1) · CPC B63H3/008 (1) · CPC B64C1/06 (1) · CPC B64C1/1407 (1) · CPC B64C1/1423 (1) · CPC B64C11/00 (2) · CPC B64C11/002 (1) · CPC B64C11/006 (1) · CPC B64C11/06 (1) · CPC B64C11/343 (1) · CPC B64C2001/0063 (2) · CPC B64C3/00 (1) · CPC F16H21/14 (1)
Family year:
None (7) · 1915 (1) · 1918 (2) · 1919 (1)
First filing: (Click arrow to add another value)
Cites these patents:
None (11)
Citations from after 1930:
None (11)
Number of text pages:
1 (4) · 2 (7)
Number of claims:
None (3) · 1 (4) · 2 (2) · 3 (2)
Number of diagram pages:
None (1) · 1 (10)
Number of figures:
None (2) · 1 (1) · 2 (1) · 3 (2) · 4 (4) · 8 (1)

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