Patent Assignment
Reel/Frame 005070/0659
Assignment of Assignors Interest.
Recorded: 1989-05-15
Pages: 1
Assignor
CHEN, FU
Executed: 1989-04-14
Assignee
BETZ LABORATORIES, INC., A CORP. OF PA.
4636 SOMERTON RD., TREVOSE, PENNSYLVANIA, 19047
Covered Property
(1)
Polymers for Boiler Water Treatment
Patent:
4,931,188 →
Application:
07/338,016 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jul 7, 1997
From: BETZ LABORATORIES, INC.
To: BETZDEARBORN INC.
Reel/Frame 008587/0492 →
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 →
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 013669/0635 →