Patent Assignment
Reel/Frame 018221/0258
Assignment of Assignor's Interest
Recorded: 2006-08-24
Pages: 3
Assignor
BURDETTE, CHARLES R.
Executed: 2006-06-04
Assignee
HARBISON-FISCHER, L.P.
901 NORTH CROWLEY ROAD, CROWLEY, TEXAS, 76036
Covered Property
(1)
Retrievable Stress and Torque Reducing Tool
Patent:
7,278,476 →
Application:
11/409,845 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger
Dec 17, 2010
From: HARBISON-FISCHER, L.P.
To: HARBISON-FISCHER, INC.
Reel/Frame 025520/0483 →
Security Agreement
May 9, 2018
From: APERGY (DELAWARE) FORMATION, INC.; APERGY BMCS ACQUISITION CORP.; APERGY ENERGY AUTOMATION, LLC; HARBISON-FISCHER, INC.
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 046117/0015 →
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 →