Patent Assignment
Reel/Frame 006570/0937
Assignment of Assignor's Interest
Recorded: 1993-06-25
Pages: 2
Assignors
WIRTH, HERMANN O.
Executed: 1991-10-18
SANDER, HANS JURGEN
Executed: 1991-10-14
HARTMANN, OLAF-RENE'
Executed: 1991-10-11
Assignee
CIBA-GEIGY CORPORATION
PATENT DEPARTMENT, 444 SAW MILL RIVER ROAD, ARDSLEY, NEW YORK, 10502
Covered Property
(1)
Stabilised Chlorine-Containing Polymers
Patent:
5,244,949 →
Application:
07/797,491 →
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 008447/0920 →
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 →