Patent Assignment
Reel/Frame 025668/0826
Assignment of Assignor's Interest
Recorded: 2011-01-20
Pages: 12
Assignors
WINTERBERG, MARKUS
Executed: 2011-01-03
ROETTGER, DIRK
Executed: 2011-01-10
BUKOHL, RAINER
Executed: 2011-01-06
WIEDERHOLD, HOLGER
Executed: 2011-01-10
LUH, WALTER
Executed: 2011-01-03
Assignee
EVONIK OXENO GMBH
PAUL-BAUMANN-STR. 1, MARL, 45772, GERMANY
Covered Property
(1)
Process for Preparing Isobutene by Cleaving Mtbe-Containing Mixtures
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger
May 15, 2014
From: EVONIK OXENO GMBH
To: EVONIK DEGUSSA GMBH
Reel/Frame 032900/0785 →
Change of Name
Dec 16, 2022
From: EVONIK DEGUSSA GMBH
To: EVONIK OPERATIONS GMBH
Reel/Frame 062739/0749 →
Confirmatory Assignment
Nov 6, 2023
From: EVONIK OPERATIONS GMBH
To: EVONIK OXENO GMBH & CO. KG
Reel/Frame 065463/0144 →