Patent Assignment
Reel/Frame 054787/0758
Assignment of Assignor's Interest
Recorded: 2020-12-31
Pages: 10
Assignors
DREYER, DANIEL
Executed: 2018-04-09
BOYRASKIKH, VYACHESLAV
Executed: 2018-04-06
HU, YUNTAO THOMAS
Executed: 2018-04-13
KURIAN, PIOUS
Executed: 2018-04-09
STREET, JOSEPH PAUL
Executed: 2018-04-13
TONMUKAYAKUL, NARONGSAK
Executed: 2018-04-05
CHANG, KIM-TAI
Executed: 2018-04-09
Assignee
ECOLAB USA INC.
1 ECOLAB PLACE, ST. PAUL, MINNESOTA, 55102
Covered Property
(1)
Fluid Diverson Composition in Well Stimulation
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Dec 31, 2020
From: ECOLAB USA INC.
To: CHAMPIONX USA INC.
Reel/Frame 054887/0444 →
Security Interest
Jun 8, 2022
From: APERGY BMCS ACQUISITION CORP.; APERGY ESP SYSTEMS, LLC; CHAMPIONX USA INC.; HARBISON-FISCHER, INC.
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 060313/0456 →
Assignment of Assignor's Interest
May 21, 2024
From: CHAMPIONX USA INC.
To: CHAMPIONX LLC
Reel/Frame 067476/0580 →
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 →