IP Library Assignment 006984/0409
Patent Assignment
Reel/Frame 006984/0409

Assignment of Assignor's Interest

Recorded: 1994-05-16 Pages: 2
Assignors
OUYANG, JIANGBO
Executed: 1994-03-15
HARPEL, WILLIAM L.
Executed: 1994-03-15
Assignee
BETZ LABORATORIES, INC.
4636 SOMERTON ROAD, TREVOSE, PENNSYLVANIA, 19053-6783
Covered Property (1)
Method of Monitoring Dried-in-Place Non-Chrome Polyacrylamide Based Treatments for Aluminum
Patent: 5,401,333 →
Application: 08/213,414 →
Related Assignments (3)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name Apr 10, 1998
From: BETZ LABORATORIES, INC.
To: BETZDEARBORN INC.
Reel/Frame 009103/0733 →
Notice of Grant of Security Interest Jan 5, 2001
From: HERCULES INCORPORATED, A DELAWARE COPORATION; HRECULES CREDIT, INC., A DELAWARE CORPORATION; HECULES FLAVOR, INC., A DELAWARE CORPORATION; WSP, INC., A DELAWARE CORPORATION
To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
Reel/Frame 011410/0554 →
Release of Security Interest Dec 31, 2002
From: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
To: HERCULES INCORPORATED; HERCULES CREDIT, INC.; HERCULES FLAVOR, INC.; WSP, INC.
Reel/Frame 013599/0543 →