Patent Assignment
Reel/Frame 052674/0580
Assignment of Assignor's Interest
Recorded: 2020-05-15
Pages: 7
Assignors
KARAS, LAWRENCE J.
Executed: 2019-01-07
TREVINO, MATTHEW AARON
Executed: 2019-01-07
HARKNESS, KELLEN
Executed: 2019-01-07
EVELAND, JEFFREY ROBERT
Executed: 2019-01-07
Assignee
ECOLAB USA INC.
1 ECOLAB PLACE, ST. PAUL, MINNESOTA, 55102
Covered Property
(1)
Complete Removal of Solids During Hydrogen Sulfide Scavenging Operations Using a Scavenger and a Michael Acceptor
Patent:
11,499,108 →
Application:
16/747,665 →
Publication:
US 2020/0231888
PCT:
PCT/US2020/014344 ↗
Related Assignments
(6)
Other recorded transfers of the patent in this record — the chain of ownership.
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
Aug 27, 2020
From: ECOLAB USA INC.
To: CHAMPIONX USA INC.
Reel/Frame 053624/0443 →
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 →