Patent Assignment
Reel/Frame 006276/0171
Assignment of Assignors Interest.
Recorded: 1992-09-02
Pages: 5
Assignor
H.A. WHITTEN & CO.
Executed: 1992-08-04
Assignee
CIBA-GEIGY AG
KLYBECKSTRASSE 141, BASLE, SWITZERLAND
Covered Properties
(2)
Process for the Production of Polycrystalline Silicon Coatings by Electrolytic Deposition of Silicon-
Patent:
4,759,830 →
Application:
07/087,635 →
Process for the Production of Polycrystalline Silicon Coatings by Electrolytic Deposition of Silicon
Patent:
4,773,973 →
Application:
07/165,492 →
Related Assignments
(3)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest.
Apr 29, 1988
From: GRUNIGER, HANS R.; KERN, RUDOLF; RYS, PAUL
To: CIBA-GEIGY AG, A COMPANY OF SWISS
Reel/Frame 004860/0880 →
Assignment of Assignors Interest.
Sep 18, 1990
From: CIBA-GEIGY AG, A CORP. OF SWITZERLAND
To: H.A. WHITTEN & CO.
Reel/Frame 005454/0161 →
Assignment of Assignors Interest.
Mar 17, 1993
From: CIBA-GEIGY AG
To: PAUL RYS
Reel/Frame 006462/0472 →