Patent Assignment
Reel/Frame 006638/0316
Assignment of Assignor's Interest
Recorded: 1993-06-15
Pages: 2
Assignors
OUYANG, JIANGBO
Executed: 1993-04-21
DECK, PHILIP D.
Executed: 1993-04-21
HARPEL, WILLIAM L.
Executed: 1993-04-21
Assignee
BETZ LABORATORIES, INC.
4636 SOMERTON ROAD TREVOSE, PA 19053-6783, PENNSYLVANIA
Covered Property
(1)
Metal Cleaning Method
Patent:
5,909,742 →
Application:
08/038,588 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Jan 15, 1999
From: BETZ LABORATORIES, INC.
To: BETZDEARBORN INC.
Reel/Frame 009698/0740 →
Notice of Grant of Security Interest
Jan 4, 2001
From: IONHERCULES INCORPORATED, A DELAWARE CORPORAT; HERCULES CREDIT, INC., DELAWARE CORPORATION; HERCULES FLAVOR, INC., A DELAWARE CORPORATION; WSP, INC., A DELAWARE CORPORATION
To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
Reel/Frame 011410/0301 →
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 013616/0102 →