Patent Assignment
Reel/Frame 033494/0400
Change of Name
Recorded: 2014-08-07
Pages: 10
Assignor
LUFKIN INDUSTRIES, INC.
Executed: 2013-08-26
Assignee
LUFKIN INDUSTRIES, LLC
350 NORTH STREET PAUL STREET SUITE 2900, DALLAS, TEXAS, 75201
Covered Properties
(31)
Inhibiting Corrosion in a Aqueous Films
PCT:
PCT/US2012/061458 ↗
Low Profile Linear Rod Pumping Unit with Pneumatic Counterbalance and Low Inertia for Actively Controlling Rod String Motion and/or Force
PCT:
PCT/US2012/064242 ↗
Determing Fluid Levels in Wells with Flow Induced Pressure Pulses
Patent:
5,715,890 →
Application:
08/571,412 →
Method and Apparatus for Controlling a Progressing Cavity Well Pump
Patent:
5,782,608 →
Application:
08/725,603 →
Pad Bearing Assembly with Fluid Spray and Blocker Bar
Patent:
5,738,447 →
Application:
08/828,759 →
Pump Off Control Using Fluid Levels
Patent:
5,829,530 →
Application:
08/958,175 →
Stowable Walking Beam Pumping Unit
Patent:
6,015,271 →
Application:
09/172,400 →
Sleeve Bearing with Bypass Cooling
Methods, Apparatus and Products Useful in the Operation of a Sucker Rod Pump During the Production of Hydrocarbons
Herringbone Gear Teeth and Method for Manufacturing Same
Method and Apparatus for Applying Dynamic Loads to a Locked Gear Train for Testing Power Transmission Components
Disc Spring Centering Device for Squeeze Film Dampers
Inferred Production Rates of a Rod Pumped Well from Surface and Pump Card Information
Method for Mitigating Rod Float in Rod Pumped Wells
Hydraulic Oil Well Pumping Apparatus
Real-Time Onsite Internet Communication with Well Manager for Constant Well Optimization
System and Method for Controlling a Progressing Cavity Well Pump
Apparatus for Analysis and Control of a Reciprocating Pump System by Determination of a Pump Card
Hydraulic Oil Well Pumping Apparatus
Beam Pumping Unit for Inclined Wellhead
Apparatus for Analysis and Control of a Reciprocating Pump System by Determination of a Pump Card
Patent:
8,433,516 →
Application:
13/175,431 →
Methods for Measuring Leakage Rate and Inferring Production Rate of an Oilfield Downhole Pump
Bridge Spring Centering Device for Squeeze Film Dampers
Hydraulic Oil Well Pumping Apparatus
Low Profile Rod Pumping Unit with Pneumatic Counterbalance for the Active Control of the Rod String
Methods, Systems, and Computer Readable Media for Sectional-Based Speed Control of a Linear Pump
Application:
14/035,046 →
Publication:
US 2014/0188292
Hydraulic Oil Well Pumping Apparatus
Gas-Lift Valve and Method of Use
Application:
14/272,548 →
Publication:
US 2014/0332227
Five-axial groove cylindrical journal bearing with pressure dams for bi-directional rotation
Bottle Chamber Gas Lift Systems, Apparatuses, and Methods Thereof
Bottle Chamber Gas Lift Systems, Apparatuses, and Methods Thereof
Application:
61/833,723 →
Related Assignments
(7)
Other recorded transfers of the patents in this record — the chain of ownership.
Change of Name
Feb 6, 2014
From: LUFKIN INDUSTRIES, INC.
To: LUFKIN INDUSTRIES, LLC
Reel/Frame 032166/0573 →
Assignment of Assignor's Interest
Jul 21, 2020
From: FESI, MICHAEL A; LAPEYROUSE, WILLARD J; VINCENT, KENNETH H
To: PETRO HYDRAULIC LIFT SYSTEM, L.L.C.
Reel/Frame 053264/0466 →
Assignment of Assignor's Interest
Jul 21, 2020
From: PETRO HYDRAULIC LIFT SYSTEM, L.L.C.
To: LUFKIN INDUSTRIES, INC.
Reel/Frame 053264/0634 →
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 →
Change of Name
May 2, 2022
From: LUFKIN INDUSTRIES, LLC
To: LUFKIN GEARS LLC
Reel/Frame 059844/0110 →
Change of Name
Aug 4, 2023
From: LUFKIN INDUSTRIES LLC
To: LUFKIN GEARS LLC
Reel/Frame 064502/0673 →