Patent Assignment
Reel/Frame 050406/0066
Assignment of Assignor's Interest
Recorded: 2019-09-17
Pages: 3
Assignor
DE, SUBHASIS
Executed: 2018-10-19
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 17, 2019
From: ANANTANENI, PRAKASA RAO; HARRINGTON, RYAN MATTHEW; TARVERDI, DAVID; KARAS, LAWRENCE J.
To: ECOLAB USA INC.
Reel/Frame 050405/0473 →
Change of Address
Sep 17, 2019
From: ECOLAB USA INC.
To: ECOLAB USA INC.
Reel/Frame 050411/0353 →
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 055159/0234 →
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 →