Patent Assignment
Reel/Frame 037134/0467
Assignment of Assignor's Interest
Recorded: 2015-11-24
Pages: 3
Assignor
NGUYEN, DUY T.
Executed: 2010-06-24
Assignee
NALCO COMPANY
1601 WEST DIEHL ROAD, NAPERVILLE, ILLINOIS, 60563
Covered Property
(1)
Method for Resolving Emulsions in Enhanced Oil Recovery Operations
Related Assignments
(9)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Aug 22, 2017
From: NALCO COMPANY LLC
To: ECOLAB USA INC.
Reel/Frame 043357/0541 →
Change of Name
Aug 22, 2017
From: NALCO COMPANY
To: NALCO COMPANY LLC
Reel/Frame 043633/0992 →
Change of Name
May 30, 2020
From: NALCO COMPANY
To: NALCO COMPANY LLC
Reel/Frame 052797/0794 →
Change of Name
Jun 1, 2020
From: NALCO COMPANY LLC
To: CHAMPIONX LLC
Reel/Frame 052800/0358 →
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 →
Assignment of Assignor's Interest
Sep 22, 2020
From: ECOLAB USA INC.
To: CHAMPIONX USA INC.
Reel/Frame 053849/0537 →
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 →