Patent Assignment
Reel/Frame 028437/0334
Assignment of Assignor's Interest
Recorded: 2012-06-25
Pages: 3
Assignor
NGUYEN, DUY T.
Executed: 2012-05-23
Assignee
NALCO COMPANY
1601 W DIEHL ROAD, NAPERVILLE, ILLINOIS, 60563-1198
Covered Property
(1)
Demulsifier Composition and Method of Using Same
Related Assignments
(7)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Mar 28, 2018
From: NALCO COMPANY
To: ECOLAB USA INC.
Reel/Frame 045377/0305 →
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 10, 2020
From: ECOLAB USA INC.
To: CHAMPIONX USA INC.
Reel/Frame 053749/0001 →
Release of Security Interest
Jun 7, 2022
From: BANK OF AMERICA, N.A.
To: CHAMPIONX USA INC.
Reel/Frame 060304/0267 →
Assignment of Assignor's Interest
Jun 19, 2024
From: CHAMPIONX USA INC.
To: CHAMPIONX LLC
Reel/Frame 067768/0888 →
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 →