IP Library Assignment 006616/0306
Patent Assignment
Reel/Frame 006616/0306

Assignment of Assignor's Interest

Recorded: 1993-07-30 Pages: 2
Assignors
WIRTH, HERMANN OTTO
Executed: 1990-12-11
FRIEDRICH, HANS-HELMUT
Executed: 1990-12-11
Assignee
CIBA-GEIGY CORPORATION
444 SAW MILL RIVER ROAD, PATENT DEPARTMENT, ARDSLEY, NEW YORK, 10502
Covered Property (1)
Compositions Containing 2,2',2"-Nitrilotriethanol Cyclometalates
Patent: 5,256,323 →
Application: 07/638,601 →
Related Assignments (1)
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 →