IP Library Assignment 013613/0870
Patent Assignment
Reel/Frame 013613/0870

Assignment of Assignor's Interest

Recorded: 2003-04-30 Pages: 2
Assignors
SOCZKA-GUTH, THOMAS
Executed: 2001-08-20
PADBERG, CHRISTOPH
Executed: 2001-09-13
FRANK, GEORG
Executed: 2001-12-08
Assignee
CELANESE VENTURES GMBH
65926 FRANKFURT, GERMANY
Covered Property (1)
Membranes Containing Sulfonated Polyetherketone and Another Polymer,Method for the Production and Use Thereof
Patent: 6,914,084 →
Application: 09/807,304 →
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Aug 8, 2005
From: CELANESE VENTURES GMBH
To: PEMEAS GMBH
Reel/Frame 016823/0485 →