Patent Assignment
Reel/Frame 023516/0542
Assignment of Assignor's Interest
Recorded: 2009-11-13
Pages: 9
Assignors
KUPPINGER, FRANZ-FELIX
Executed: 2009-10-29
HENGSTERMANN, AXEL
Executed: 2009-10-19
STOCHNIOL, GUIDO
Executed: 2009-10-23
BUB, GUNTHER
Executed: 2009-10-20
MOSLER, JURGEN
Executed: 2009-10-19
SABBAGH, ANDREAS
Executed: 2009-10-19
Assignee
EVONIK STOCKHAUSEN GMBH
BAKERPFAD 25, KREFELD, 47805, GERMANY
Covered Property
(1)
Process for Preparing Acrylic Acid Purified by Crystallization from Hydroxypropionic Acid and Apparatus Therefore
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger
May 15, 2013
From: EVONIK STOCKHAUSEN GMBH
To: EVONIK DEGUSSA GMBH
Reel/Frame 030417/0037 →
Change of Name
Dec 31, 2019
From: EVONIK DEGUSSA GMBH
To: EVONIK OPERATIONS GMBH
Reel/Frame 051457/0556 →
Assignment of Assignor's Interest
Oct 21, 2021
From: EVONIK OPERATIONS GMBH
To: EVONIK SUPERABSORBER GMBH
Reel/Frame 057884/0218 →