IP Library Assignment 004835/0255
Patent Assignment
Reel/Frame 004835/0255

Assignment of Assignors Interest.

Recorded: 1988-02-29 Pages: 3
Assignor
WU, CHING-YONG
Executed: 1987-12-16
Assignee
KOPPERS COMPANY, INC.
436 SEVENTH AVENUE, PITTSBURGH, PENNSYLVANIA, 15219
Covered Property (1)
Hydroperoxidation of Diisopropylbenzene
Patent: 4,935,551 →
Application: 07/136,313 →
Related Assignments (10)
Other recorded transfers of the patent in this record — the chain of ownership.
Security Interest Dec 16, 1988
From: ISC ACQUISTION COMPANY
To: ALGEMENE BANK NEDERLAND N.V., HOUSTON AGENCY
Reel/Frame 004994/0188 →
Assignment of Assignors Interest. Jan 23, 1989
From: KOPPERS COMPANY, INC.
To: ISC ACQUISTION COMPANY, A CORP. OF DE
Reel/Frame 005010/0410 →
Assignment of Assignors Interest. Feb 9, 1989
From: KOPPERS COMPANY, INC.,
To: ISC ACQUISITION COMPANY, A CORP. OF DE.
Reel/Frame 005018/0329 →
Change of Name Aug 3, 1989
From: ISC ACQUISITION COMPANY
To: INDSPEC CHEMICAL CORPORATION
Reel/Frame 005132/0700 →
License Dec 20, 1993
From: INDSPEC TECHNOLOGIES, LTD.
To: INDSPEC CHEMICAL CORPORATION
Reel/Frame 006804/0733 →
Merger Feb 7, 1994
From: INDSPEC CHEMICAL CORPORATION
To: INDSPEC TECHNOLOGIES LTD.
Reel/Frame 006853/0155 →
Security Interest Oct 15, 1996
From: INDSPEC CHEMICAL CORPORATION; INDSPEC HOLDING CORPORATION; INDSPEC TECHNOLOGIES, LTD; ICC RESIN TECHNOLOGY, INC.
To: PNC BANK, NATIONAL ASSOCIATION
Reel/Frame 008167/0530 →
Security Agreement Jul 6, 1998
From: INDSPEC CHEMICAL CORPORATION
To: ABN AMRO BANK N.V.
Reel/Frame 009297/0134 →
Reslease of Security Interest Jul 6, 1998
From: PNC BANK, NATIONAL ASSOCIATION
To: INDSPEC CHEMICAL CORPORATION; INDSPEC HOLDING CORPORATION; INDSPEC TECHNOLOGIES, LTD.; ICC RESIN TECHNOLOGY, INC.
Reel/Frame 009297/0125 →
Release of Security Interest May 12, 2006
From: INDSPEC CHEMICAL CORPORATION
To: ABN AMRO BANK N.V.
Reel/Frame 017606/0354 →