Patent Assignment
Reel/Frame 050410/0502
Change of Address
Recorded: 2019-09-17
Pages: 7
Assignor
ECOLAB USA INC.
Executed: 2018-03-08
Assignee
ECOLAB USA INC.
1 ECOLAB PLACE, ST. PAUL, MINNESOTA, 55102
Covered Property
(1)
Preparation of New Stable Hydrogen Sulfide Scavengers Useful in Both Water as Well as Oil Medium Applications
Related Assignments
(7)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Sep 27, 2017
From: ANANTANENI, PRAKASA RAO; HARRINGTON, RYAN MATTHEW; TARVERDI, DAVID; KARAS, LAWRENCE J.
To: ECOLAB USA INC.
Reel/Frame 043719/0140 →
Assignment of Assignor's Interest
Oct 24, 2018
From: DE, SUBHASIS
To: ECOLAB USA INC.
Reel/Frame 047298/0122 →
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
Jan 28, 2021
From: ECOLAB USA INC.
To: CHAMPIONX USA INC.
Reel/Frame 055158/0707 →
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 →