Patent Assignment
Reel/Frame 012199/0648
Assignment of Assignor's Interest
Recorded: 2001-09-25
Pages: 3
Assignor
HOECHST AKTIENGESELLSCHAFT
Executed: 2001-08-29
Assignee
CLARIANT GMBH
BRUNINGSTRASSE 50, 65929 FRANKFURT AM MAIN, GERMANY
Covered Property
(1)
Process for Preparing 7-Hydroxy-1,2-Naphthoquinone-2-Diazide-4- Sulfonic Acid or Salts Thereof
Patent:
5,192,640 →
Application:
07/564,643 →
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest.
Aug 9, 1990
From: SCHELER, SIEGFRIED; BUHR, GERHARD; BERGMANN, KLAUS
To: HOECHST AKTIENGESELLSCHAFT
Reel/Frame 005413/0280 →
Document Previously Recorded at Reel 012199 Frame 0648 Contained Errors in Property Number 5192650. Document Rerecorded to Correct Errors on Stated Reel.
Feb 21, 2002
From: HOECHST AKTIENGESELLSCHAFT
To: CLARIANT GMBH
Reel/Frame 012598/0255 →
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 →