Patent Assignment
Reel/Frame 023838/0453
Assignment of Assignor's Interest
Recorded: 2010-01-25
Pages: 4
Assignors
SCHAEFER, THOMAS
Executed: 2009-10-27
WEBER, ROBERT
Executed: 2009-10-27
GROPP, UDO
Executed: 2009-10-28
MERTZ, THOMAS
Executed: 2009-10-27
Assignee
EVONIK ROEHM GMBH
KIRSCHENALLEE, DARMSTADT, 64293, GERMANY
Covered Property
(1)
Reactor for Preparing Hydrogen Cyanide by the Andrussow Process
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Feb 11, 2020
From: EVONIK ROEHM GMBH
To: ROEHM GMBH
Reel/Frame 051893/0671 →
Assignment of Assignor's Interest
Feb 11, 2020
From: ROEHM GMBH
To: EVONIK DEGUSSA GMBH
Reel/Frame 051893/0727 →
Change of Name
Feb 11, 2020
From: EVONIK DEGUSSA GMBH
To: EVONIK OPERATIONS GMBH
Reel/Frame 051894/0001 →