Patent Assignment
Reel/Frame 049474/0248
Assignment of Assignor's Interest
Recorded: 2019-06-14
Pages: 7
Assignors
ST. PETER, CRUZ
Executed: 2019-06-01
BALASUBRAMANIAN, RAMAKRISHNAN
Executed: 2019-05-15
NGUYEN, DUY
Executed: 2019-05-01
KARNATI, RANGARANI
Executed: 2019-05-17
Assignee
ECOLAB USA INC.
1 ECOLAB PLACE, SAINT PAUL, MINNESOTA, 55102
Covered Property
(1)
Removal and Prevention of Biofilm by Nanoparticle Chemistries
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 31, 2020
From: ECOLAB USA INC.
To: CHAMPIONX USA INC.
Reel/Frame 053639/0001 →
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 →