Patent Assignment
Reel/Frame 049439/0952
Change of Address
Recorded: 2019-06-11
Pages: 7
Assignor
ECOLAB USA INC.
Executed: 2018-03-08
Assignee
ECOLAB USA INC.
1 ECOLAB PLACE, ST. PAUL, MINNESOTA, 55102
Covered Property
(1)
Method of Assessing Asphaltene Inhibitor Efficiency
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jan 19, 2017
From: FOUCHARD, DAVID MARC DANIEL; CARMICHAEL, JENNIFER ELAINE
To: ECOLAB USA INC.
Reel/Frame 041431/0582 →
Assignment of Assignor's Interest
Jan 28, 2021
From: ECOLAB USA INC.
To: CHAMPIONX USA INC.
Reel/Frame 055143/0537 →
Security Interest
Apr 30, 2021
From: APERGY ESP SYSTEMS, LLC; APERGY BMCS ACQUISITION CORPORATION; CHAMPIONX USA INC.; HARBISON-FISCHER, INC.
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 056106/0007 →
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 →