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Houston, TX, United States of America

Stewart & Stevenson Services, Inc.

USPTO Granted Patents = 23

Trademarks = 2

Forward Citations = 713

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31 inventors (with patents filed for the assignee):

Robert A Baten (7 out of 9 patents)

Bruce A Vicknair (6 out of 7 patents)

Greg L Cedillo (5 out of 6 patents)

4. Michael P Dearing (3 out of 7 patents)

5. Albert M Regan (2 out of 2 patents)

6. Joseph L LeMoine (2 out of 2 patents)

7. Mark H Axford (2 out of 2 patents)

8. James K Prochaska (2 out of 2 patents)

9. William L Anderson, Jr (2 out of 5 patents)

10. Frank C South, Jr (2 out of 2 patents)

11. Thomas A Robertson (2 out of 2 patents)

12. Randall R Price (2 out of 4 patents)

13. John Howard Craig (2 out of 2 patents)

14. Dennis D George (1 out of 1 patent)

15. Richard A Olson (1 out of 12 patents)

23 patents: Sort by Forward Citations

1. 6450262 - Riser isolation tool (2002-09-17),

2. 6123151 - Valve for use in a subsea drilling riser (2000-09-26),

3. 6089526 - Ram type blowout preventor (2000-07-18),

4. 6014855 - Light hydrocarbon fuel cooling system for gas turbine (2000-01-18),

5. 6012547 - Cargo loader with quick-release lift-assisted handrail (2000-01-11),

6. 5841357 - Battery electrolyte monitor (1998-11-24),

7. 5775803 - Automatic cementing system with improved density control (1998-07-07),

8. 5624182 - Automatic cementing system with improved density control (1997-04-29),

9. 5515916 - Blowout preventer (1996-05-14),

10. 5503473 - Automatic cementing system for precisely obtaining a desired cement (1996-04-02),

11. 5441340 - Method for controlling the density of a well fracturing slurry (1995-08-15),

12. 5322410 - Tube bundle extractor (1994-06-21),

13. 5281023 - Method and apparatus for automatically controlling a well fracturing (1994-01-25),

14. 5188174 - Apparatus for inserting and withdrawing coil tubing into a well (1993-02-23),

15. 5184064 - Encapsulated meter with optical programmer (1993-02-02),

Stewart & Stevenson Services, Inc. is a leading provider of specialized equipment, parts, and services to the global oil and gas, marine, construction, power generation, transportation, and other industries. With a history dating back to 1902, the company offers a wide range of products and solutions, including engines, generators, compressors, pumping systems, power electronics, fluid handling, and truck-mounted equipment. Stewart & Stevenson is committed to delivering superior customer service, innovative technology, and reliable products to meet the evolving needs of their diverse clientele.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

23 Patents

#230 in Houston, TX

#844 in Texas

#13,930 in US

#26,801 in the World

Houston, TX, United States of America

Stewart & Stevenson Services, Inc.

Forward Citations = 713

31 inventors:

Robert A Baten (7 out of 9 patents)

Bruce A Vicknair (6 out of 7 patents)

Greg L Cedillo (5 out of 6 patents)

4. Michael P Dearing (3 out of 7 patents)

5. Albert M Regan (2 out of 2 patents)

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