IP Library Assignment 004304/0238
Patent Assignment
Reel/Frame 004304/0238

Assignment of Assignors Interest.

Recorded: 1984-09-26 Pages: 1
Assignors
MUELLER, KARL F.
Executed: 1982-05-07
HEIBER, SONIA J.
Executed: 1982-05-07
PLANKL, WALTER L.
Executed: 1982-05-07
Assignee
CIBA-GEIGY CORPORATION A CORP. OF NY
444 SAW MILL RIVER ROAD, ARDSLEY, NEW YORK
Covered Property (1)
Strong, Silicone Containing Polymers with High Oxygen Permeability
Patent: 4,486,577 →
Application: 06/433,743 →
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Nov 6, 2000
From: NOVARTIS CORPORATION (FORMERLY CIBA-GEIGY CORPORATION)
To: CIBA VISION CORPORATION
Reel/Frame 011077/0934 →