Patent Assignment
Reel/Frame 008699/0720
Assignment of Assignor's Interest
Recorded: 1997-09-15
Pages: 4
Assignee
HOECHST JAPAN LIMITED
10-16, AKASAKA 8-CHOME, MINATO-KU, TOKYO, JAPAN
Covered Property
(1)
Polybenzimidazole Compounds in Solution and a Process for the Preparation Thereof
Patent:
5,902,876 →
Application:
08/877,851 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Feb 13, 2001
From: HOECHST JAPAN LIMITED
To: CLARIANT FINANCE (BVI) LIMITED
Reel/Frame 011531/0702 →
Assignment of Assignor's Interest
Mar 17, 2005
From: CLARIANT FINANCE (BVI) LIMITED
To: AZ ELECTRONIC MATERIALS USA CORP.
Reel/Frame 015788/0348 →
Assignment of Assignor's Interest
Nov 21, 2008
From: AZ ELECTRONIC MATERIALS USA CORP.
To: PBI ADVANCED MATERIALS CO., LTD.
Reel/Frame 021976/0841 →