Patent Assignment
Reel/Frame 018256/0598
Assignment of Assignor's Interest
Recorded: 2006-08-29
Pages: 3
Assignee
CELANESE INTERNATIONAL CORPORATION
1601 WEST LBJ FREEWAY, DALLAS, TEXAS, 75234-6037
Covered Property
(1)
Control Method for Process of Removing Permanganate Reducing Compounds from Methanol Carbonylation Process
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
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 →