Patent Assignment
Reel/Frame 006213/0321
Assignment of Assignors Interest.
Recorded: 1992-07-21
Pages: 2
Assignee
CIBA-GEIGY CORPORATION
444 SAW MILL RIVER ROAD, ARDSLEY, NEW YORK, 10502
Covered Property
(1)
Substitute Aminopyrroles as Stabilisers for Chlorine-Containing Polymers
Patent:
5,155,152 →
Application:
07/496,380 →
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Mar 17, 1997
From: CIBA-GEIGY CORPORATION
To: CIBA SPECIALTY CHEMICALS CORPORATION
Reel/Frame 008412/0471 →
Assignment of Assignor's Interest
Oct 26, 1998
From: CIBA SPECIALTY CHEMICALS CORPORATION
To: WITCO VINYL ADDITIVES GMBH
Reel/Frame 009833/0189 →
Change of Name
Mar 19, 2002
From: CK WITCO VINYL ADDITIVES GMBH
To: CROMPTON VINYL ADDITIVES GMBH
Reel/Frame 012721/0457 →
Change of Name
Mar 19, 2002
From: WITCO VINYL ADDITIVES GMBH
To: CK WITCO VINYL ADDITIVES GMBH
Reel/Frame 012721/0465 →