Patent Assignment
Reel/Frame 025309/0877
Assignment of Assignor's Interest
Recorded: 2010-11-04
Pages: 5
Assignors
STEPHENSON, PEARL E
Executed: 2010-10-04
HOLMES, WILLIAM D
Executed: 2010-10-05
POHLER, STEVEN A
Executed: 2010-10-05
Assignee
MARATHON OIL COMPANY
5555 SAN FELIPE, HOUSTON, TEXAS, 77056
Covered Property
(1)
Apparatus, Assembly and Process for Injecting Fluid into a Subterranean Well
Related Assignments
(6)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Aug 13, 2018
From: MARATHON OIL COMPANY
To: PCS FERGUSON, INC.
Reel/Frame 046627/0562 →
Security Agreement
Nov 6, 2019
From: APERGY ESP SYSTEMS, LLC; APERGY BMCS ACQUISITION CORP.; PCS FERGUSON, INC.; QUARTZDYNE, INC.
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 050941/0695 →
Security Interest
Jun 5, 2020
From: ACE DOWNHOLE, LLC; APERGY BMCS ACQUISITION CORP.; HARBISON-FISCHER, INC.; NORRIS RODS, INC.
To: BANK OF AMERICA, N.A.
Reel/Frame 053790/0001 →
Release of Security Interest
Jun 7, 2022
From: BANK OF AMERICA, N.A.
To: ACE DOWNHOLE, LLC; HARBISON-FISCHER, INC.; NORRIS RODS, INC.; PCS FERGUSON, INC.
Reel/Frame 060305/0001 →
Merger
Dec 20, 2023
From: PCS FERGUSON, INC.
To: CHAMPIONX LLC
Reel/Frame 065925/0893 →
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 →