IP Library Assignment 023455/0247
Patent Assignment
Reel/Frame 023455/0247

Assignment of Assignor's Interest

Recorded: 2009-11-02 Pages: 2
Assignors
SONG, ZHIQIANG
Executed: 2008-01-08
MAO, JIANWEN
Executed: 2008-01-18
Assignee
CIBA SPECIALTY CHEMICALS CORPORATION
540 WHITE PLAINS ROAD, TARRYTOWN, NEW YORK, 10591
Covered Property (1)
Polyelectrolyte Complexes as Thickeners for High Ionic Strength Salt Solutions
Patent: 8,419,976 →
Application: 11/988,969 →
Publication: US 2010/0108955
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name Mar 7, 2013
From: CIBA SPECIALTY CHEMICAL CORPORATION
To: CIBA CORPORATION
Reel/Frame 029938/0806 →
Asset Transfer Agreement Mar 7, 2013
From: CIBA CORPORATION
To: BASF SE
Reel/Frame 029941/0384 →