Patent Assignment
Reel/Frame 007984/0904
Assignment of Assignor's Interest
Recorded: 1996-06-10
Pages: 3
Assignors
LIAO, WEN P.
Executed: 1996-03-19
POLIZZOTTI, DAVID M.
Executed: 1996-03-21
ROE, DONALD C.
Executed: 1996-03-21
Assignee
BETZ LABORATOEIRES, INC.
4636 SOMERTON ROAD, TREVOSE, PENNSYLVANIA, 19053
Covered Property
(1)
Cationic Block Polymer Agglomeration Agents for Mineral Bearing Ores
Patent:
5,668,219 →
Application:
08/620,648 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Apr 4, 1997
From: BETZ LABORATORIES, INC.
To: BETZDEARBORN INC.
Reel/Frame 008446/0467 →
Notice of Grant of Security Interest
Jan 5, 2001
From: HERCULES INCORPORATED; HERCULES CREDIT, INC.; HERCULES FLAVOR, INC.; WSP, INC.
To: BANK OFAMERICA, N.A., AS COLLATERAL AGENT
Reel/Frame 011425/0001 →
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 013599/0263 →