Patent Assignment
Reel/Frame 015796/0165
Assignment of Assignor's Interest
Recorded: 2004-09-14
Pages: 5
Assignee
LUFKIN INDUSTRIES, INC.
P.O. BOX 849, LUFKIN, TEXAS, 75902-0849
Covered Property
(1)
Inferred Production Rates of a Rod Pumped Well from Surface and Pump Card Information
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Aug 7, 2014
From: LUFKIN INDUSTRIES, INC.
To: LUFKIN INDUSTRIES, LLC
Reel/Frame 033494/0400 →
Assignment of Assignor's Interest
Jul 22, 2020
From: LUFKIN INDUSTRIES, LLC; BAKER HUGHES HOLDINGS LLC FKA BAKER HUGHES, A GE COMPANY, LLC FKA BAKER HUGHES INCORPORATED; BAKER HUGHES OILFIELD OPERATIONS, LLC; QUINN PUMPS CANADA LTD.
To: RAVDOS HOLDINGS INC.
Reel/Frame 053285/0640 →
Security Interest
May 26, 2021
From: RAVDOS HOLDINGS INC.
To: PNC BANK, NATIONAL ASSOCIATION
Reel/Frame 056362/0902 →