Patent Assignment
Reel/Frame 053625/0631
Assignment of Assignor's Interest
Recorded: 2020-08-27
Pages: 132
Assignor
ECOLAB USA INC.
Executed: 2020-08-25
Assignee
CHAMPIONX USA INC.
11177 S. STADIUM DRIVE, SUGAR LAND, TEXAS, 77478
Covered Properties
(2)
Preparation of Disulfide Corrosion Inhibitors by Electrochemical Methods
Patent:
11,441,230 →
Application:
16/692,990 →
Publication:
US 2020/0173038
PCT:
PCT/US2019/062853 ↗
Preparation of Disulfide Corrosion Inhibitors by Electrochemical Methods
Application:
62/772,998 →
Related Assignments
(7)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Nov 29, 2018
From: HARRINGTON, RYAN MATTHEW; ZHANG, YINGRUI
To: ECOLAB USA INC.
Reel/Frame 047628/0685 →
Assignment of Assignor's Interest
May 6, 2020
From: HARRINGTON, RYAN MATTHEW; ZHANG, YINGRUI
To: ECOLAB USA INC.
Reel/Frame 052582/0958 →
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 7, 2023
From: CHAMPIONX USA INC.
To: CHAMPIONX LLC
Reel/Frame 065799/0403 →
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 →