Patent Assignment
Reel/Frame 011999/0490
Assignment of Assignor's Interest
Recorded: 2001-07-23
Pages: 2
Assignee
AXIVA GMBH
D-65928 FRANKFURT AM MAIN, GERMANY
Covered Property
(1)
Fuel Cell with Improved Long Term Performance, Method for Operating a Pme Fuel Cell and Pme Fuel Cell Battery
Patent:
6,852,440 →
Application:
09/762,513 →
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 →