Drilldown: Patents

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Patents > Year filed: 1920 - 1929 & Filing date: 1921 & Cites these patents: None

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Year filed:
(There are no values for this filter)
Year granted:
None (1) · 1922 (7) · 1923 (4) · 1924 (1) · 1925 (1)
Office:
CA (1) · DE (3) · ES (1) · FR (4) · US (5)
Inventors:
None (1) · Albert Peter Thurston (1) · Alfredo Guillermo Leigh‎ (1) · Ernst Heinkel‎ (2) · François M. Rilleau (1) · Georges Provost (2) · Jakob Haw (1) · Louis-Marie Le Dantec (1) · Marcel Mathieu Étienne Besson (1) · Pierre Le Goaziou (1) · Rene Cecil Motte (1) · William S. Hull (1)
Inventor country:
CL (1) · DE (4) · FR (5) · GB (2) · US (2)
Inventor location:
None (13) · England (1)
Applicant person:
None (1) · Albert Peter Thurston (1) · Alfredo Guillermo Leigh‎ (1) · Ernst Heinkel‎ (2) · François M. Rilleau (1) · Georges Provost (2) · Hans Baumeister (1) · Louis-Marie Le Dantec (1) · Marcel Mathieu Étienne Besson (1) · Pierre Le Goaziou (1) · Rene Cecil Motte (1) · William S. Hull (1)
Applicant firm:
None (12) · Bristol Aeroplane Company (1) · Zeppelin-Werke Staaken G.m.b.H. (1)
Applicant type:
None (1) · COMPANY + INDIV (1) · INDIV (12)
Applicant is inventor:
None (1) · Yes (13)
Tech fields:
None (14)
Filing date:
January 1921 (1) · February 1921 (1) · March 1921 (3) · April 1921 (2) · July 1921 (1) · August 1921 (1) · October 1921 (1) · November 1921 (2) · December 1921 (2)
Full specification filed date:
None (14)
Application number:
None (13) · 457036D (1)
Grant date:
1922 (8) · 1923 (4) · 1924 (1) · 1925 (1)
Granted:
Yes (14)
Publication date:
None (6) · 1922 (4) · 1923 (3) · 1925 (1)
Supplementary to patent:
None (9) · Patent AT-1917-87219 (1) · Patent AT-1917-87220 (1) · Patent DE-1915-300200 (1) · Patent DE-1916-309361 (1) · Patent DE-1916-332539 (1) · Patent DE-1916-332540 (1) · Patent DE-1916-332541 (1) · Patent DE-1919-332428 (1) · Patent DE-1919-364419 (1) · Patent FR-1916-501550 (1) · Patent FR-1921-539928 (1) · Patent GB-1918-140127 (1) · Patent HU-1917-75493 (1) · Patent HU-1917-76645 (1)
Related to aircraft:
None (1) · 1 (12) · Yes (1)
Patent agent:
None (6) · A. Albright? (1) · Charles Assi (1) · Frantz and Richards (1) · James L. Norris (1) · None (1) · P. Degroote (2) · William Wallace White (1)
Assigned to:
None (13) · Zeppelin-Werke Staaken G.m.b.H. (1)
National tech categories:
None (4) · CA 244/35 (1) · DE 62b.15 (1) · DE 77h.5 (2) · DE 77h.9 (1) · FR 12.2 (1) · FR 6.4 (4) · USPC 244/118.5 (1)
IPCs:
None (2) · IPC B63B1/22 (1) · IPC B64C1/26 (1) · IPC B64C11/16 (1) · IPC B64C13/00 (1) · IPC B64C3/00 (1) · IPC B64C3/54 (2) · IPC B64C33/02 (1) · IPC B64C35/00 (2) · IPC B64C5/00 (1) · IPC B64C9/00 (1) · IPC B64D27/00 (1) · IPC G01S1/72 (1)
CPCs:
None (2) · CPC B21D51/383 (1) · CPC B63B1/22 (1) · CPC B64C1/26 (1) · CPC B64C11/20 (1) · CPC B64C13/00 (1) · CPC B64C3/54 (2) · CPC B64C33/02 (1) · CPC B64C35/00 (1) · CPC B64D27/00 (1) · CPC B64D27/04 (1) · CPC G01S1/72 (1) · IPC B64C35/00 (1)
Family year:
None (2) · 1912 (1) · 1915 (1) · 1916 (1) · 1918 (1) · 1921 (8)
First filing:
None (3) · No (4) · Yes (7)
Cites these patents: (Click arrow to add another value)
Citations from after 1930:
None (3) · 1 (1) · 3 (1) · 7 (1)
Number of text pages:
None (1) · 2 (6) · 3 (3) · 4 (2) · 6 (1) · 22 (1)
Number of claims:
None (1) · 1 - 3 (3) · 3 - 5 (4) · 5 - 10 (6)
Number of diagram pages:
None (1) · 1 (6) · 2 (2) · 3 (2) · 5 (1) · 7 (1)
Number of figures:
None (1) · 2 - 4 (2) · 4 - 5 (4) · 5 - 30 (6)

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