Patent Assignment
Reel/Frame 013467/0611
Assignment of Assignor's Interest
Recorded: 2002-11-12
Pages: 3
Assignor
CLARIANT GMBH
Executed: 2002-09-24
Assignee
KURARAY SPECIALTIES EUROPE GMBH
BRUNINGSTR 50, FRANKFURT AM MAIN, D65926, GERMANY
Covered Properties
(2)
Polyvinyl Butyrals Having Improved Thermal Stability and Light Resistance
Patent:
5,384,346 →
Application:
08/058,896 →
Process for Preparing Poly ( Vinyl Acetals ) and Poly (Vinyl Ketals)
Patent:
5,866,654 →
Application:
08/850,555 →
Related Assignments
(3)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
May 6, 1993
From: GUTWEILER, MATTHIAS; HUTTEN, ULRICH; PFAHLER, GERHARD; SCHINDLER, HERMANN
To: HOECHST AKTIENGESELLSCHAFT
Reel/Frame 006550/0861 →
Assignment of Assignor's Interest
May 2, 1997
From: FUSS, ROBERT W.; GUTWEILER, MATTHIAS; BAUMGARTNER, MARTIN
To: HOECHST AG
Reel/Frame 008538/0813 →
Assignment of Assignor's Interest
Nov 5, 1999
From: HOECHST AKTIENGESELLSCHAFT
To: CLARIANT GMBH
Reel/Frame 010371/0694 →