IP Library › Assignment 005660/0646
Patent Assignment
Reel/Frame 005660/0646

Assignment of Assignors Interest.

Recorded: 1991-04-10 Pages: 2
Assignor
Assignee
CIBA-GEIGY CORPORATION, A NY CORP.
444 SAW MILL RIVER ROAD, ARDSLEY, NEW YORK, 10502
Covered Property (1)
Process for the Preparation of Azo Dyes by Carrying Out Coupling in the Presence of an Alkali Metal Chloride and Ammoninium Chloride
Patent: 5,026,830 →
Application: 07/237,474 →
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest. Apr 10, 1991
From: LANGFELD, HORST; PUEBLA, CLAUDIO; SEREINIG, GUNTER
To: CIBA-GEIGY AG, A COMPANY OF THE SWISS CONFEDERATION
Reel/Frame 005660/0644 →
Assignment of Assignor's Interest Mar 17, 1997
From: CIBA-GEIGY CORPORATION
To: CIBA SPECIALTY CHEMICALS CORPORATION
Reel/Frame 008454/0001 →