Patent Assignment
Reel/Frame 003824/0164
Assignment of Assignors Interest.
Recorded: 1981-01-19
Pages: 1
Assignor
TOMKA IVAN
Executed: 1980-05-01
Assignee
CIBA-GEIGY AG
KLYBECKSTRASSE 141, A COMPANY OF SWITZERLAND, BASLE, 4002, SWITZERLAND
Covered Property
(1)
Process for Incorporating Photographic Additives in Hydrophilic Colloid Preparations
Patent:
4,284,709 →
Application:
06/147,785 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest.
Apr 6, 1983
From: CIBA-GEIGY AG (A/K/A CIBA-GEIGY LIMITED)
To: H.A. WHITTEN & CO, A PARTNERSHIP
Reel/Frame 004117/0903 →
Assignment of Assignors Interest.
Aug 25, 1989
From: H.A. WHITTEN & CO.
To: CIBA-GEIGY AG
Reel/Frame 005184/0184 →
Assignment of Assignors Interest.
Jan 7, 1991
From: CIBA-GEIGY AG
To: ILFORD AG, A CO. OF SWITZERLAND
Reel/Frame 005570/0524 →