Patent Assignment
Reel/Frame 013485/0557
Assignment of Assignor's Interest
Recorded: 2002-11-12
Pages: 2
Assignor
DINGERDISSEN, UWE
Executed: 2002-10-21
Assignee
CELANESE INTERNATINAL CORPORATION
1601 WEST LBJ FREEWAY, DALLAS, TEXAS, 75381
Covered Property
(1)
Method for the Selective Production of Acetic Acid by Catalytic Oxidation of Ethane and/or Ethylene
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jul 25, 2003
From: ZEYSS, SABINE
To: CELANESE INTERNATIONAL CORP.
Reel/Frame 014322/0823 →
Assignment of Security Interest in Certain Patents
Mar 25, 2008
From: CELANESE INTERNATIONAL CORPORATION
To: DEUTSCHE BANK AG, NEW YORK BRANCH, AS COLLATERAL AGENT
Reel/Frame 020690/0600 →
Release of Security Interest
Aug 18, 2016
From: DEUTSCHE BANK AG, NEW YORK BRANCH
To: CELANESE INTERNATIONAL CORPORATION
Reel/Frame 039743/0924 →