Patent Assignment
Reel/Frame 005176/0324
Assignment of Assignors Interest.
Recorded: 1989-11-03
Pages: 2
Assignee
HOECHST AKTIENGESELLSCHAFT
FRANKFURT/MAIN, GERMANY
Covered Property
(1)
Process for Preparing Substituted 1,2-Naphthoquinone-(2)-Diazide-4- Sulfonic Acid Esters and Their Use in a Radiation-Sensitive Mixture
Patent:
5,082,932 →
Application:
07/431,182 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Nov 19, 1999
From: HOECHST AKTIENGESELLSCHAFT
To: CLARIANT GMBH
Reel/Frame 010351/0823 →
Assignment of Assignor's Interest
Dec 9, 2005
From: CLARIANT GMBH
To: CLARIANT AZ (DEUTSCHLAND) AKTIENGESELLSCHAFT
Reel/Frame 017105/0233 →
Change of Name
Dec 9, 2005
From: CLARIANT AZ (DEUTSCHLAND) AKTIENGESSELLSCHAFT
To: AZ ELECTRONIC MATERIALS (GERMANY) GMBH
Reel/Frame 017105/0279 →