For the Inventor, By the Inventor

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Pearland, TX, United States of America

Davis-lynch, Inc.

USPTO Granted Patents = 19

CIPO Patents = 1

EPO Patents = 1

Trademarks = 1

Forward Citations = 922

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12 inventors (with patents filed for the assignee):

Malcolm G Coone (10 out of 11 patents)

Jeffry C Ehlinger (5 out of 7 patents)

Frank Cole (4 out of 4 patents)

4. Jerry P Allamon (2 out of 22 patents)

5. Jack D Miller (2 out of 24 patents)

6. Jeffrey D Musselwhite (2 out of 2 patents)

7. Benny Alan Eaton (2 out of 2 patents)

8. Hedayat H Hassanzadeh (2 out of 3 patents)

9. Jeff Ehlinger (1 out of 1 patent)

10. Larry Graen (1 out of 1 patent)

11. Ronnie G Patterson (1 out of 1 patent)

12. Thomas L Kelley (1 out of 1 patent)

13. Jack E Miller (23 patents)

19 patents: Sort by Forward Citations

1. 7849918 - Centering structure for tubular member and method of making same (2010-12-14),

2. 6679336 - Multi-purpose float equipment and method (2004-01-20),

3. 6562401 - Method for making a stand-off device to prevent an oilfield tubular from contacting the side of the wellbore (2003-05-13),

4. 6439304 - Stand-off device (2002-08-27),

5. 6401824 - Well completion convertible float shoe/collar (2002-06-11),

6. 6401811 - Tool tie-down (2002-06-11),

7. 5842517 - Anti-rotational cementing apparatus (1998-12-01),

8. 5584343 - Method and apparatus for filling and circulating fluid in a wellbore (1996-12-17),

9. 5566772 - Telescoping casing joint for landing a casting string in a well bore (1996-10-22),

10. 5411095 - Apparatus for cementing a casing string (1995-05-02),

11. 5234052 - Cementing apparatus (1993-08-10),

12. 5197542 - Well packer (1993-03-30),

13. 5150756 - Well completion apparatus (1992-09-29),

14. 5085273 - Casing lined oil or gas well (1992-02-04),

15. 5027894 - Through the tubing bridge plug (1991-07-02),

Davis-lynch, Inc. is a leading provider of innovative industrial solutions, specializing in equipment for the drilling, completion, and production of oil and natural gas. With over 50 years of experience, we deliver high-quality products and exceptional service to our customers worldwide.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

19 Patents

#1 in Pearland, TX

#1,030 in Texas

#16,629 in US

#31,713 in the World

Pearland, TX, United States of America

Davis-lynch, Inc.

Forward Citations = 922

12 inventors:

Malcolm G Coone (10 out of 11 patents)

Jeffry C Ehlinger (5 out of 7 patents)

Frank Cole (4 out of 4 patents)

4. Jerry P Allamon (2 out of 22 patents)

5. Jack D Miller (2 out of 24 patents)

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