Patent Assignment
Reel/Frame 022768/0477
Change of Name
Recorded: 2009-06-02
Pages: 6
Assignor
STOCKHAUSEN GMBH
Executed: 2007-09-17
Assignee
EVONIK STOCKHAUSEN GMBH
BAKERPFAD 25, KREFELD, 47805, GERMANY
Covered Property
(1)
Method for the Purification of (Meth) Acrylic Acid
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jul 10, 2007
From: NORDHOFF, STEFAN; BALDUF, TORSTEN; MOSLER, JURGEN; UHLICH, WILFRIED
To: STOCKHAUSEN GMBH
Reel/Frame 019538/0625 →
Change of Name
Mar 4, 2010
From: STOCKHAUSEN GMBH
To: EVONIK STOCKHAUSEN GMBH
Reel/Frame 024023/0758 →
Merger
May 15, 2013
From: EVONIK STOCKHAUSEN GMBH
To: EVONIK DEGUSSA GMBH
Reel/Frame 030417/0037 →
Change of Name
Dec 10, 2019
From: EVONIK DEGUSSA GMBH
To: EVONIK OPERATIONS GMBH
Reel/Frame 051238/0591 →
Assignment of Assignor's Interest
Oct 20, 2021
From: EVONIK OPERATIONS GMBH
To: EVONIK SUPERABSORBER GMBH
Reel/Frame 057880/0801 →