IP Library Assignment 004838/0189
Patent Assignment
Reel/Frame 004838/0189

Assignment of Assignors Interest.

Recorded: 1988-03-16 Pages: 1
Assignors
HAAS, GUNTHER
Executed: 1986-04-21
NEISIUS, KARL H.
Executed: 1986-04-21
Assignee
Covered Property (1)
Negatively Operating Photoresist Composition, with Radiation-Absorbing Additives
Patent: 4,762,767 →
Application: 06/857,663 →
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest. Apr 18, 1989
From: MERCK PATENT GMBH
To: CIBA-GEIGY CORPORATION
Reel/Frame 005048/0308 →
Assignment of Assignor's Interest Feb 20, 1996
From: CIBA-GEIGY CORPORATION
To: OCG MICROELECTRONIC MATERIALS, INC.
Reel/Frame 007815/0833 →