Patent Assignment
Reel/Frame 050188/0116
Assignment of Assignor's Interest
Recorded: 2019-08-28
Pages: 11
Assignors
SONG, FEI
Executed: 2017-03-28
LI, KE KEN
Executed: 2017-04-03
BOYER, LEMOYNE
Executed: 2017-04-03
LIU, QINGBIN
Executed: 2017-04-05
MATHIRAVEDU, RAJKUMAR SHANMUGAM
Executed: 2019-08-12
Assignee
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER DRIVE, SUGAR LAND, TEXAS, 77478
Covered Property
(1)
Pump Rod Connection
Related Assignments
(6)
Other recorded transfers of the patent in this record — the chain of ownership.
Recordable Confirmatory Patent Assignment
Nov 6, 2020
From: SCHLUMBERGER TECHNOLOGY CORPORATION
To: SCHLUMBERGER LIFT SOLUTIONS, LLC
Reel/Frame 054341/0311 →
Security Interest
Nov 23, 2020
From: SCHLUMBERGER LIFT SOLUTIONS LLC
To: PNC BANK, NATIONAL ASSOCIATION
Reel/Frame 054443/0693 →
Change of Name
Dec 4, 2020
From: SCHLUMBERGER LIFT SOLUTIONS LLC
To: LUFKIN LIFT SOLUTIONS LLC
Reel/Frame 054600/0108 →
Assignment of Assignor's Interest
Mar 6, 2025
From: LUFKIN LIFT SOLUTIONS LLC; LUFKIN US ACQUISITION COMPANY, LLC
To: RAVDOS HOLDINGS INC.
Reel/Frame 070423/0404 →
Partial Termination and Release of Patent Security Agreement
Apr 16, 2025
From: PNC BANK, NATIONAL ASSOCIATION
To: RAVDOS HOLDINGS INC.
Reel/Frame 070863/0829 →
Assignment of Assignor's Interest
Jul 18, 2025
From: RAVDOS HOLDINGS INC.
To: Q2 ARTIFICIAL LIFT SERVICES LLC
Reel/Frame 071755/0547 →