For the Inventor, By the Inventor

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Oklahoma City, OK, United States of America

Wood Group Esp, Inc.

USPTO Granted Patents = 37

% Expired Patents = 24.3

Trademarks = 4

Forward Citations = 533

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28 inventors (with patents filed for the assignee):

Michael R Berry (9 out of 9 patents)

Yasser Khan Bangash (7 out of 7 patents)

Stephen M Sakamoto (6 out of 6 patents)

4. Chengbao Wang (4 out of 25 patents)

5. Alan Howell (4 out of 9 patents)

6. Stephen Michael Breit (3 out of 10 patents)

7. Raymond E Floyd (3 out of 3 patents)

8. O Howard Glaze (2 out of 2 patents)

9. Stephen E Conner (2 out of 2 patents)

10. Steven Alan Howell (1 out of 9 patents)

11. Aaron Noakes (1 out of 7 patents)

12. Harold Leon Phillips (1 out of 2 patents)

13. Chris Ketter (1 out of 1 patent)

14. Edward Gross (1 out of 1 patent)

15. Jeffrey C Markowski (1 out of 1 patent)

Core Competencies:

Slag Reduction Pump

Multi-Stage Gas Separator

Thrust Section Wear Preventor

Well Fluid Homogenization

Electric Submersible Pump

Mechanical Seal

Downhole Turbomachines

Fiber-Optic Cable

Leakage Resistant Shroud

Dual Gearbox Pump

Water Separation System

Self-Lubricating Bearing

37 patents: Sort by Forward Citations

1. 7841826 - Slag reduction pump (2010-11-30),

2. 7624795 - Bottom mount auxiliary pumping system seal section (2009-12-01),

3. 7462225 - Gas separator agitator assembly (2008-12-09),

4. 7461692 - Multi-stage gas separator (2008-12-09),

5. 7370697 - Thrust section wear preventor (2008-05-13),

6. 7367400 - Motor protector and method for chemical protection of same (2008-05-06),

7. 7357186 - Recirculation gas separator (2008-04-15),

8. 7344356 - Mechanical seal with bellows seating alignment (2008-03-18),

9. 7343967 - Well fluid homogenization device (2008-03-18),

10. 7296622 - Labyrinth seal for pumping system (2007-11-20),

11. 7236910 - Equipment identification, tracking and failure analysis process (2007-06-26),

12. 7208855 - Fiber-optic cable as integral part of a submersible motor system (2007-04-24),

13. 7191067 - System and method of selecting a motor for a wellbore (2007-03-13),

14. 7174957 - Magnetic bailer (2007-02-13),

15. 7150600 - Downhole turbomachines for handling two-phase flow (2006-12-19),

Wood Group Esp, Inc. is a prominent player in the energy sector, specializing in engineering and consulting services. The company focuses on delivering innovative solutions for oil and gas, renewable energy, and infrastructure projects. With a strong emphasis on safety and sustainability, Wood Group leverages advanced technologies to enhance operational efficiency and reduce environmental impact. Headquartered in Oklahoma City, the firm serves a diverse clientele across North America and beyond, contributing to the advancement of energy-related initiatives.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

Wood Group Esp, Inc.

37 Patents

#10 in Oklahoma City, OK

#39 in Oklahoma

#9,251 in US

#18,260 in the World

Oklahoma City, OK, United States of America

Wood Group Esp, Inc.

Forward Citations = 533

28 inventors:

Michael R Berry (9 out of 9 patents)

Yasser Khan Bangash (7 out of 7 patents)

Stephen M Sakamoto (6 out of 6 patents)

4. Chengbao Wang (4 out of 25 patents)

5. Alan Howell (4 out of 9 patents)

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