IP Library › Assignment 005642/0948
Patent Assignment
Reel/Frame 005642/0948

Assignment of Assignors Interest.

Recorded: 1991-03-25 Pages: 2
Assignors
ROBERTSON, J. RICHARD
Executed: 1989-06-06
SU, KAI C.
Executed: 1989-06-06
Assignee
CIBA-GEIGY CORPORATION
444 SAW MILL RIVER RD., A CORP. OF NY, ARDSLEY, NEW YORK
Covered Property (1)
Wettable, Flexible, Oxygen Permeable Contact Lens Containing Block Copolymer Polysiloxane-Polyoxyalkylene Backbone Units and Use Thereof
Patent: 5,070,169 →
Application: 07/342,848 →
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest. Mar 25, 1991
From: GOLDENBERG, MERRILL S.; MUELLER, KARL F.
To: CIBA-GEIGY CORPORATION
Reel/Frame 005642/0950 →
Assignment of Assignor's Interest Nov 6, 2000
From: NOVARTIS CORPORATION (FORMERLY CIBA-GEIGY CORPORATION)
To: CIBA VISION CORPORATION
Reel/Frame 011077/0934 →