Patent Assignment
Reel/Frame 017125/0552
Assignment of Assignor's Interest
Recorded: 2006-02-07
Pages: 2
Assignor
TICONA GMBH
Executed: 2006-01-26
Assignee
DEGUSSA AG
BENNINGSENPLATZ 1, 40474 DUESSELDORF, GERMANY
Covered Properties
(2)
Heteroaromatic Polyether
Patent:
5,300,625 →
Application:
07/819,061 →
Polyether Ketones and Polyether Sulfones Based on Phenylindane, and the Use Thereof for Optical Systems
Patent:
5,373,081 →
Application:
08/021,894 →
Related Assignments
(6)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest.
Feb 12, 1992
From: HELMREICH, BRIGITTE; BURGER, KLAUS; MAIER, GERHARD; HECHT, REINHOLD
To: HOECHST AKTIENGESELLSCHAFT A CORPORATION OF THE FEDERAL REPUBLIC OF GERMANY
Reel/Frame 006042/0747 →
Assignment of Assignors Interest.
Feb 24, 1993
From: YANG, DAZHONG; MAIER, GERHARD; NUYKEN, OSKAR; BREKNER, MICHAEL-JOACHIM
To: HOECHST AKTIENGESELLSCHAFT
Reel/Frame 006454/0578 →
Assignment of Assignor's Interest
Sep 24, 2001
From: HOECHST AKTIENGESELLSCHAFT
To: TICONA GMBH
Reel/Frame 012188/0305 →
Change Address
Feb 22, 2010
From: EVONIK DEGUSSA GMBH
To: EVONIK DEGUSSA GMBH
Reel/Frame 023985/0296 →
Change of Entity
Feb 22, 2010
From: DEGUSSA AG
To: DEGUSSA GMBH
Reel/Frame 023998/0937 →
Change of Name
Feb 23, 2010
From: DEGUSSA GMBH
To: EVONIK DEGUSSA GMBH
Reel/Frame 024006/0127 →