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For the Inventor, By the Inventor

Houston, TX, United States of America

Hydril Company


USPTO Granted Patents = 277



Trademarks = 26

Forward Citations = 7,535

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151 inventors (with patents filed for the assignee):

goldMedal James D Mott (27 out of 27 patents)

silverMedal Harris Allen Reynolds, Jr (21 out of 37 patents)

bronzeMedal Joseph R Roche (21 out of 22 patents)

4.  Charles D Morrill (15 out of 15 patents)

5.  David Llewellyn Mallis (12 out of 14 patents)

6.  Robert S Sivley, Iv (12 out of 19 patents)

7.  James A Burton (11 out of 17 patents)

8.  William Lyle Carbaugh (11 out of 23 patents)

9.  Keith C Mott (11 out of 11 patents)

10.  Charles P Peterman (9 out of 9 patents)

11.  Douglas W Carlson (9 out of 9 patents)

12.  Kenneth W Colvin (8 out of 8 patents)

13.  Thomas L Blose (8 out of 15 patents)

14.  George E Lewis (8 out of 8 patents)

15.  Edward Ryan Hemphill (7 out of 11 patents)


Core Competencies:
Threaded Connections
Wedge Thread Connection
Curvilinear Sealing System
Expandable Threaded Connection
Blowout Preventer
Hydrocarbon Well
Torque Shoulder
Tubular Goods
Threadform Design
Electrical Insulation
Subsea Control System
Composite Liner

277 patents:

1. 12378984 - Threaded and coupled tubular goods connection (2025-08-05),
2. 12366123 - Wedge thread connection for tubular goods (2025-07-22),
3. 12297700 - Curvilinear sealing system (2025-05-13),
4. 12146591 - Threaded connection for exploration and production of a hydrocarbon well (2024-11-19),
5. 11953122 - Threadform having enlarged grooves (2024-04-09),
6. 11753876 - Curvilinear sealing system (2023-09-12),
7. 11560760 - Threaded tubular connection (2023-01-24),
8. 11512538 - Wedge thread connection for tubular goods (2022-11-29),
9. 11421487 - Curvilinear sealing system (2022-08-23),
10. 11371293 - Wedge threadform having crest to root thread compound relief areas (2022-06-28),
11. 11371292 - Threadform having crest to root thread compound relief areas (2022-06-28),
12. 11174686 - Threaded tubular connection (2021-11-16),
13. 11047413 - Threaded and coupled tubular goods connection (2021-06-29),
14. 10704338 - Abutments for threaded connections (2020-07-07),
15. 9052041 - Wedge threads with a solid lubricant coating (2015-06-09),
Hydril is a leading manufacturer and supplier of pressure control equipment and services for the oil and gas industry. With over 70 years of experience, Hydril specializes in reliable and innovative products such as blowout preventers, drilling risers, and wellhead systems. Our commitment to quality and safety has earned us a reputation as a trusted partner in the industry. Visit our website for more information on our products and services.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 9 2025

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277 Patents

#36 in Houston, TX

#82 in Texas

#1,507 in US

#3,090 in the World

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Houston, TX, United States of America

Hydril Company

Forward Citations = 7,535

151 inventors:

goldMedal James D Mott (27 out of 27 patents)

silverMedal Harris Allen Reynolds, Jr (21 out of 37 patents)

bronzeMedal Joseph R Roche (21 out of 22 patents)

4.  Charles D Morrill (15 out of 15 patents)

5.  David Llewellyn Mallis (12 out of 14 patents)

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