Patent Assignment
Reel/Frame 011033/0169
Assignment of Assignor's Interest
Recorded: 2000-08-14
Pages: 2
Assignors
SOCZKA-GUTH, THOMAS
Executed: 2000-06-08
BAURMAISTER, JOCHEN
Executed: 2000-06-09
FRANK, GEORG
Executed: 2000-06-15
KNAUF, RUDIGER
Executed: 2000-07-14
Assignee
AXIVA GMBH
D-65926, FRANKFURT AM MAIN, GERMANY
Covered Property
(1)
Method for Producing a Membrane Used to Operate Fuel Cells and Electrolyzers
Patent:
6,355,149 →
Application:
09/555,973 →
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Jun 27, 2005
From: AXIVA GMBH
To: CELANESE VENTURES GMBH
Reel/Frame 016722/0099 →
Assignment of Assignor's Interest
Nov 14, 2005
From: HOECHST AG
To: AVENTIS PHARMA DEUTSCHLAND
Reel/Frame 017223/0694 →
Assignment of Assignor's Interest
Nov 14, 2005
From: CLEANESE VENTURES GMBH
To: PEMEAS GMBH
Reel/Frame 017230/0181 →
Assignment of Assignor's Interest
Nov 19, 2005
From: CELANESE VENTURES GMBH
To: PEMEAS GMBH
Reel/Frame 017325/0323 →