Patent Assignment
Reel/Frame 023682/0642
Assignment of Assignor's Interest
Recorded: 2009-12-21
Pages: 5
Assignee
STATOILHYDRO ASA.
FORUSBEEN 50, N4035, STAVANGER, NORWAY
Covered Property
(1)
Well Treatment Comprising a Polymer Formed from a Diallyl Ammonium Salt and a Scale Inhibitor
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Dec 21, 2009
From: MONTGOMERIE, HARRY; CHEN, PING; HAGEN, THOMAS
To: CHAMPION TECHNOLOGIES LTD.
Reel/Frame 023682/0542 →
Security Interest
Jun 5, 2020
From: CHAMPIONX USA INC.
To: BANK OF AMERICA, N.A.
Reel/Frame 052848/0368 →
Security Interest
Jun 5, 2020
From: CHAMPIONX USA INC.
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 053250/0001 →
Release of Security Interest
Jun 7, 2022
From: BANK OF AMERICA, N.A.
To: CHAMPIONX USA INC.
Reel/Frame 060304/0267 →
Release of Security Interest in Patents
Jul 17, 2025
From: JPMORGAN CHASE BANK, N.A.
To: CHAMPIONX LLC; APERGY ESP SYSTEMS, LLC; APERGY BMCS ACQUISITION CORP; HARBISON-FISCHER, INC.
Reel/Frame 072004/0019 →