Patent Assignment
Reel/Frame 007418/0172
Assignment of Assignor's Interest
Recorded: 1995-03-06
Pages: 5
Assignors
RAHMAN, M. DALIL
Executed: 1995-02-21
AUBIN, DANIEL P.
Executed: 1995-02-21
KHANNA, DINESH N.
Executed: 1995-02-21
MCKENZIE, DOUGLAS
Executed: 1995-02-21
Assignee
HOECHST CELANESE CORPORATION
ROUTE 202-206, SOMERVILLE, NEW JERSEY, 08876
Covered Property
(1)
Metal Ion Reduction in Novolak Resin Using an Ion Exchange Catalyst in a Polar Solvent and Photoresists Compositions Therefrom
Patent:
5,521,052 →
Application:
08/365,659 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Nov 6, 1997
From: HOECHST CELANESE CORPORATION
To: CLARIANT FINANCE (BVI) LIMITED
Reel/Frame 008829/0760 →
Assignment of Assignor's Interest
May 4, 2005
From: CLARIANT FINANCE (BVI) LIMITED
To: AZ ELECTRONIC MATERIALS USA CORP.
Reel/Frame 015972/0092 →
Assignment of Assignor's Interest
Jan 8, 2015
From: AZ ELECTRONIC MATERIALS USA CORP.
To: MERCK PATENT GMBH
Reel/Frame 034742/0206 →