Patent Assignment
Reel/Frame 006032/0359
Assignment of Assignors Interest.
Recorded: 1992-02-28
Pages: 2
Assignor
PEREZ, LIBARDO A.
Executed: 1992-01-28
Assignee
BETZ LABORATORIES, INC.
A CORPORATION OF COMMONWEALTH OF PA, 4636 SOMERTON ROAD, TREVOSE, PENNSYLVANIA, 19053
Covered Property
(1)
Methods of Controlling Scale Formation in Aqueous Systems
Patent:
5,248,438 →
Application:
07/827,246 →
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Sep 20, 1996
From: BETZ LABORATORIES, INC.
To: BETZDEARBORN INC.
Reel/Frame 008146/0541 →
Notice of Grant of Security Interest
Jan 2, 2001
From: HERCULES INCORPORATED, A DELAWARE CORPORATION; HERCULES CREDIT, INC., A DELAWARE CORPORATION; HERCULES FLAVOR, INC., A DELAWARE CORPORATION; WSP, INC., A DELAWARE CORPORATION
To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
Reel/Frame 011590/0943 →