Patent Assignment
Reel/Frame 053639/0001
Assignment of Assignor's Interest
Recorded: 2020-08-31
Pages: 132
Assignor
ECOLAB USA INC.
Executed: 2020-08-25
Assignee
CHAMPIONX USA INC.
11177 S. STADIUM DR., SUGAR LAND, TEXAS, 77478
Covered Properties
(4)
Reduction of Hydrogen Sulfide and/or Malodor Gassing from Water via the Addition of Peroxyacetic Acid/Hydrogen Peroxide Product
Reduction of Hydrogen Sulfide and/or Malodor Gassing from Water via the Addition of Peroxyacetic Acid/Hydrogen Peroxide Product
Removal and Prevention of Biofilm by Nanoparticle Chemistries
Use of Multiple Charged Cationic Compounds Derived from Polyamines for Clay Stabilization in Oil and Gas Operations
Related Assignments
(7)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Jun 14, 2019
From: ST. PETER, CRUZ; BALASUBRAMANIAN, RAMAKRISHNAN; NGUYEN, DUY; KARNATI, RANGARANI
To: ECOLAB USA INC.
Reel/Frame 049474/0248 →
Assignment of Assignor's Interest
Aug 30, 2019
From: DHAWAN, ASHISH; HARKNESS, KELLEN; SILVERNAIL, CARTER M.; MONK, KEITH A.
To: ECOLAB USA INC.
Reel/Frame 050223/0280 →
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 →
Assignment of Assignor's Interest
Dec 14, 2023
From: CHAMPIONX USA INC.
To: CHAMPIONX LLC
Reel/Frame 065869/0839 →
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 →