Patent Assignment
Reel/Frame 032724/0875
Assignment of Assignor's Interest
Recorded: 2014-04-22
Pages: 3
Assignor
HART, PAUL R.
Executed: 2014-04-08
Assignee
NALCO COMPANY
1601 WEST DIEHL ROAD, NAPERVILLE, ILLINOIS, 60563
Covered Property
(1)
Hydrocarbon Mobility and Recovery Through in-Situ Combustion with the Addition of Ammonia
Related Assignments
(8)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger
Oct 5, 2016
From: CHAMPION TECHNOLOGIES, INC.
To: NALCO COMPANY
Reel/Frame 040232/0752 →
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 →