Patent Assignment
Reel/Frame 020089/0656
Assignment of Assignor's Interest
Recorded: 2007-11-09
Pages: 10
Assignors
POPP, HANNS-PETER
Executed: 2006-12-14
NICOLAI, RAINER
Executed: 2007-01-18
RAULEDER, HARTWIG
Executed: 2006-11-11
LANG, JUERGEN
Executed: 2006-12-11
Assignee
DEGUSSA AG
BENNIGSENPLATZ 1, DUESSELDORF, D-40474, GERMANY
Covered Property
(1)
Process and Apparatus for Purifying Silicon Tetrachloride or Germanium Tetrachloride Containing Hydrogen Compounds
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Change Address
Feb 22, 2010
From: EVONIK DEGUSSA GMBH
To: EVONIK DEGUSSA GMBH
Reel/Frame 023985/0296 →
Change of Entity
Feb 22, 2010
From: DEGUSSA AG
To: DEGUSSA GMBH
Reel/Frame 023998/0937 →
Change of Name
Feb 23, 2010
From: DEGUSSA GMBH
To: EVONIK DEGUSSA GMBH
Reel/Frame 024006/0127 →
Change of Name
Jan 31, 2020
From: EVONIK DEGUSSA GMBH
To: EVONIK OPERATIONS GMBH
Reel/Frame 051765/0166 →