For the Inventor, By the Inventor

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Bossier City, LA, United States of America

Tri-state Oil Tool Industries, Inc.

USPTO Granted Patents = 18

Forward Citations = 816

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12 inventors (with patents filed for the assignee):

Gary R Johnson (8 out of 10 patents)

Charles N Richardson (4 out of 4 patents)

Gerald D Lynde (3 out of 87 patents)

4. Kenneth W Winterrowd (2 out of 3 patents)

5. Archer W Kammerer, Jr (2 out of 2 patents)

6. Harold H Harvey, Jr (1 out of 11 patents)

7. James M Price (1 out of 3 patents)

8. William K Murray (1 out of 1 patent)

9. Frank W Barrier (1 out of 1 patent)

10. David O Sullivan (1 out of 1 patent)

11. W Kirby Murray (1 out of 1 patent)

12. Benjamin E Foster (1 out of 1 patent)

18 patents: Sort by Forward Citations

1. 4887668 - Cutting tool for cutting well casing (1989-12-19),

2. 4796709 - Milling tool for cutting well casing (1989-01-10),

3. 4776394 - Hydraulic stabilizer for bore hole tool (1988-10-11),

4. 4576402 - Locking pipe sub (1986-03-18),

5. 4452304 - Remotely operated packer and anchor apparatus for changing a geothermal (1984-06-05),

6. 4390065 - Apparatus for well treating (1983-06-28),

7. 4382623 - Apparatus for retrieving fluid plug (1983-05-10),

8. 4374543 - Apparatus for well treating (1983-02-22),

9. 4354560 - Apparatus for drilling enlarged boreholes (1982-10-19),

10. 4354559 - Enlarged borehole drilling method and apparatus (1982-10-19),

11. 4314608 - Method and apparatus for well treating (1982-02-09),

12. 4276931 - Junk basket (1981-07-07),

13. 4244431 - Drilling apparatus with dual drill pipe and cross-over (1981-01-13),

14. 4243252 - Dual concentric pipe joint (1981-01-06),

15. 4219087 - Enlarged bore hole drilling method (1980-08-26),

Tri-state Oil Tool Industries, Inc. is a leading provider of oilfield equipment and tools for the drilling and production industry. Specializing in high-quality products and exceptional customer service, we offer a wide range of tools including drilling motors, downhole tools, and fishing tools. With over 20 years of experience, our team of experts is dedicated to delivering reliable solutions to meet our customers' needs.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

18 Patents

#2 in Bossier City, LA

#42 in Louisiana

#17,382 in US

#33,147 in the World

Bossier City, LA, United States of America

Tri-state Oil Tool Industries, Inc.

Forward Citations = 816

12 inventors:

Gary R Johnson (8 out of 10 patents)

Charles N Richardson (4 out of 4 patents)

Gerald D Lynde (3 out of 87 patents)

4. Kenneth W Winterrowd (2 out of 3 patents)

5. Archer W Kammerer, Jr (2 out of 2 patents)

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