Patent Assignment
Reel/Frame 040396/0149
Assignment of Assignor's Interest
Recorded: 2016-11-22
Pages: 8
Assignors
CHONG, JONATHAN WUN SHIUNG
Executed: 2016-06-30
CALLAWAY, LEWIS
Executed: 2016-11-15
HODGSON, KIM
Executed: 2016-06-24
Assignee
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER DRIVE, SUGAR LAND, TEXAS, 77478
Covered Property
(1)
Reducing Fluid Pressure Spikes in a Pumping System
Related Assignments
(6)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jan 4, 2021
From: SCHLUMBERGER TECHNOLOGY CORPORATION
To: LIBERTY OILFIELD SERVICES LLC
Reel/Frame 054802/0869 →
Security Interest
Feb 10, 2021
From: LIBERTY OILFIELD SERVICES LLC
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT
Reel/Frame 055217/0599 →
Patent Security Agreement
Jun 15, 2021
From: LIBERTY OILFIELD SERVICES LLC
To: U.S. BANK NATIONAL ASSOCIATION, AS AGENT
Reel/Frame 056596/0168 →
Release of Patent Security Agreement
Jan 26, 2023
From: U.S. BANK NATIONAL ASSOCIATION, AS AGENT
To: LIBERTY OILFIELD SERVICES LLC
Reel/Frame 062516/0566 →
Release of Security Interest
Jun 26, 2023
From: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT
To: LIBERTY OILFIELD SERVICES LLC
Reel/Frame 064058/0405 →
Change of Name
Jan 13, 2025
From: LIBERTY OILFIELD SERVICES LLC
To: LIBERTY ENERGY SERVICES LLC
Reel/Frame 069881/0664 →