Drilldown: Patents

Jump to navigation Jump to search
Patents > Year granted: 1920 - 1929 & National tech categories: DE 77h.6 & First filing: Yes

Use the filters below to narrow your results.

Year filed:
1915 (3) · 1916 (4) · 1917 (4) · 1918 (8) · 1919 (1)
Year granted:
1920 (9) · 1921 (4) · 1922 (6) · 1924 (1)
Office:
DE (20)
Inventors:
None (10) · Christian Lorenzen (1) · Curt Pinkert (1) · Erwin Wesnigk (1) · Eugen Ludwig Müller (1) · Franz Bernards (1) · Hellmuth Hirth (1) · Jakob Haw (3) · Reinhard Mannesmann (1)
Inventor country:
DE (19) · GB (1)
Inventor location:
None (16) · Berlin (4)
Applicant person:
None (12) · Christian Lorenzen (1) · Curt Pinkert (1) · Erwin Wesnigk (1) · Franz Bernards (1) · Hans Reissner (1) · Jakob Haw (3)
Applicant firm:
None (11) · Helix Propeller G.m.b.H. (7) · Mercur Flugzeugbau (1) · Zahnradfabrik G.m.b.H. (1)
Applicant type:
COMPANY (8) · INDIV (10) · UNIV-PRO-GOV (2)
Applicant is inventor:
No (6) · Yes (14)
Tech fields:
None (20)
Filing date:
1915 (3) · 1916 (4) · 1917 (4) · 1918 (8) · 1919 (1)
Full specification filed date:
None (20)
Application number:
None (4) · 304238D (1) · 320732D (1) · 326211D (1) · 326213D (1) · 327778D (1) · 328800D (1) · 328801D (1) · 328802D (1) · 332540D (1) · 334826D (1) · 347803D (1) · 352425D (1) · B0084572 (1) · H0068945 (1) · H0070077 (1) · H0080257 (1)
Grant date:
None (4) · 1920 (7) · 1921 (2) · 1922 (6) · 1924 (1)
Granted:
Yes (20)
Publication date:
January 1920 (1) · April 1920 (1) · August 1920 (1) · January 1921 (1) · September 1921 (1) · June 1922 (2) · August 1922 (1)
Supplementary to patent:
None (20)
Related to aircraft:
None (1) · 1 (15) · Yes (4)
Patent agent:
None (20)
Assigned to:
None (20)
National tech categories: (Click arrow to add another value)
IPCs:
None (5) · IPC B21D53/78 (1) · IPC B64C11/00 (1) · IPC B64C11/04 (3) · IPC B64C11/06 (1) · IPC B64C11/16 (1) · IPC B64C11/20 (3) · IPC B64C11/24 (1) · IPC B64C11/30 (1) · IPC B64C11/34 (2) · IPC B64C11/36 (3) · IPC B64C27/04 (1)
CPCs:
None (4) · CPC B21D53/78 (1) · CPC B64C11/00 (1) · CPC B64C11/04 (4) · CPC B64C11/065 (1) · CPC B64C11/16 (1) · CPC B64C11/20 (3) · CPC B64C11/24 (1) · CPC B64C11/30 (1) · CPC B64C11/346 (2) · CPC B64C11/36 (3) · CPC B64C27/20 (1) · CPC B64C2700/6281 (1) · CPC B64D2700/62701 (1)
Family year:
None (4) · 1915 (2) · 1916 (4) · 1917 (3) · 1918 (7)
First filing: (Click arrow to add another value)
Cites these patents:
None (20)
Citations from after 1930:
None (20)
Number of text pages:
1 (2) · 2 (13) · 3 (4) · 4 (1)
Number of claims:
None (3) · 1 - 2 (2) · 2 - 3 (5) · 3 - 4 (1) · 4 - 7 (9)
Number of diagram pages:
None (2) · 1 (18)
Number of figures:
None (2) · 1 - 2 (3) · 2 - 3 (4) · 3 - 8 (10)

Showing below up to 20 results in range #1 to #20.

View (previous 250 | next 250) (20 | 50 | 100 | 250 | 500)


View (previous 250 | next 250) (20 | 50 | 100 | 250 | 500)

Retrieved from "http://econterms.net/aero/Special:Drilldown/Patents"