Patent Assignment
Reel/Frame 007534/0045
Assignment of Assignor's Interest
Recorded: 1995-06-19
Pages: 4
Assignor
BETZ LABORATORIES, INC.
Executed: 1995-05-22
Assignee
BJ SERVICES COMPANY
5500 NORTHWEST CENTRAL DRIVE, HOUSTON, TEXAS, 77092
Covered Properties
(3)
Inhibitor Treatment Program for Chlorine Dioxide Corrosion
Patent:
5,064,612 →
Application:
07/638,484 →
Corrosion Inhibitor Composition and Method of Use
Patent:
5,459,125 →
Application:
08/096,072 →
Methods for Melting and Dispersing Paraffin Wax in Oil Field Production Equipment
Patent:
5,484,488 →
Application:
08/223,919 →
Related Assignments
(5)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Sep 2, 1993
From: OHLSEN, JAMES R.; BROWN, J. MICHAEL; BROCK, GENE F.; MANDLAY, VEENA K.
To: BETZ LABORATORIES, INC.
Reel/Frame 006690/0592 →
Assignment of Assignor's Interest
May 16, 1994
From: HART, PAUL R.; BROWN, J. MICHAEL
To: BETZ LABORATORIES, INC.
Reel/Frame 006975/0512 →
Assignment of Assignor's Interest
Jun 19, 1995
From: WESTERN COMPANY OF NORTH AMERICA, THE
To: BJ SERVICES COMPANY, U.S.A.
Reel/Frame 007526/0440 →
Assignment of Assignor's Interest
Oct 2, 1995
From: BJ SERVICES COMPANY
To: BJ SERVICES COMPANY, U.S.A.
Reel/Frame 007674/0082 →
Assignment of Assignor's Interest
Oct 31, 2001
From: BJ SERVICES COMPANY, U.S.A.
To: BJ SERVICES COMPANY
Reel/Frame 012333/0812 →