IP Library › Assignment 035179/0338
Patent Assignment
Reel/Frame 035179/0338

Assignment of Assignor's Interest

Recorded: 2015-03-17 Pages: 5
Assignors
NGUYEN, DUY T.
Executed: 2015-02-25
MUELLER, BRIAN L.
Executed: 2015-02-20
Assignee
ECOLAB USA INC.
370 NORTH WABASHA STREET, ST. PAUL, MINNESOTA, 55102
Covered Property (1)
Surfactant Assisted Oil Recovery Using Alcohol Ether Sulfonates and Cationic Surfactants
Patent: 9,926,486 →
Application: 14/231,307 →
Publication: US 2015/0275634
Related Assignments (5)
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 Sep 22, 2020
From: ECOLAB USA INC.
To: CHAMPIONX USA INC.
Reel/Frame 053849/0537 →
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 →