Patent Assignment
Reel/Frame 051637/0286
Assignment of Assignor's Interest
Recorded: 2020-01-28
Pages: 4
Assignors
MCCASKILL, JOHN WALTON, III
Executed: 2016-07-13
SPENCER, DANNY
Executed: 2019-03-20
CHARLES, SCOTT
Executed: 2019-07-12
Assignee
EXPRO AMERICAS, LLC
738 HIGHWAY 6 SOUTH, SUITE 1000, HOUSTON, TEXAS, 77079
Covered Property
(1)
A System for Controlling Wellbore Pressure During Pump Shutdowns
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
Short-Form Patent and Trademark Security Agreement
Mar 5, 2019
From: EXPRO AMERICAS, LLC
To: DNB BANK ASA, LONDON BRANCH, AS SECURITY AGENT
Reel/Frame 048511/0837 →
Assignment of Assignor's Interest
Dec 15, 2020
From: EXPRO AMERICAS, LLC
To: ADS SERVICES LLC
Reel/Frame 054649/0810 →
Short-Form Patent and Trademark Security Agreement
Oct 4, 2021
From: EXPRO AMERICAS, LLC
To: DNB BANK ASA, LONDON BRANCH
Reel/Frame 057719/0904 →
Assignment of Assignor's Interest
Sep 9, 2025
From: ADS SERVICES, LLC
To: CORTEC, L.L.C.
Reel/Frame 072200/0236 →
Release of Security Interest
Sep 30, 2025
From: DNB BANK ASA, LONDON BRANCH
To: EXPRO AMERICAS, LLC
Reel/Frame 072421/0327 →