IP Library Assignment 004174/0475
Patent Assignment
Reel/Frame 004174/0475

Assignment of Assignors Interest.

Recorded: 1983-09-30 Pages: 1
Assignors
MUELLER, KARL F.
Executed: 1980-07-24
HEIBER, SONIA J.
Executed: 1980-07-24
Assignee
Covered Property (1)
Membrane Modified Hydrogels
Patent: 4,423,099 →
Application: 06/172,908 →
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 008454/0037 →