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For the Inventor, By the Inventor

Houston, TX, United States of America

Hydril USA Manufacturing LLC


USPTO Granted Patents = 70


Forward Citations = 457

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49 inventors (with patents filed for the assignee):

goldMedal Robert Arnold Judge (19 out of 30 patents)

silverMedal Ryan Cheaney Gustafson (8 out of 17 patents)

bronzeMedal William Lyle Carbaugh (8 out of 23 patents)

4.  Leonard G Childers (7 out of 9 patents)

5.  Eric Lee Milne (7 out of 8 patents)

6.  Seemant Yadav (6 out of 6 patents)

7.  Michael Wayne Berckenhoff (6 out of 12 patents)

8.  David Albert Dietz (5 out of 5 patents)

9.  Peringandoor Raman Hariharan (5 out of 5 patents)

10.  Perrin Rodriguez (5 out of 5 patents)

11.  Shafiq Khandoker (4 out of 4 patents)

12.  Philip A Huff (4 out of 4 patents)

13.  Edward Ryan Hemphill (4 out of 11 patents)

14.  Dat Manh Nguyen (3 out of 7 patents)

15.  Viral Shah (2 out of 7 patents)


Core Competencies:
Blowout Preventer
Subsea Control Module
Mudline Managed Pressure Drilling
Fiber Reinforced Elastomer
Well Control
Pressure Energized Radial Seal
Drill String Valve
Shear Blade Geometry
Subsea Sensors
Riser Assembly
Safety Mechanism
Subsea Solids Processing

70 patents:

1. 9033048 - Apparatuses and methods for determining wellbore influx condition using qualitative indications (2015-05-19),
2. 9019118 - Automated well control method and apparatus (2015-04-28),
3. 9016659 - Fiber reinforced elastomer anisotropic annular blowout preventer (2015-04-28),
4. 9016381 - Mudline managed pressure drilling and enhanced influx detection (2015-04-28),
5. 8979062 - Secondary activation of packer and method (2015-03-17),
6. 8960306 - Annular blowout preventer and lower marine riser package connector unit (2015-02-24),
7. 8905141 - Subsea operating valve connectable to low pressure recipient (2014-12-09),
8. 8875795 - Subsea sensors display system and method (2014-11-04),
9. 8844613 - Shear blade and method of attachment to shear rams (2014-09-30),
10. 8770298 - Safety mechanism for blowout preventer (2014-07-08),
11. 8740174 - Dual-direction ram-type blowout preventer seal (2014-06-03),
12. 8702106 - Pressure energized radial seal (2014-04-22),
13. 8694298 - Drill string valve actuator with inflatable seals (2014-04-08),
14. 8657253 - Position data based method, interface and device for blowout preventer (2014-02-25),
15. 8651190 - Shear boost triggering and bottle reducing system and method (2014-02-18),
Hydril USA Manufacturing LLC is a leading manufacturer of drilling equipment and services. With a strong emphasis on innovation and reliability, we provide advanced drilling solutions to the oil and gas industry. Our extensive product range includes blowout preventers, pressure control tools, and drilling consumables. Backed by a team of experienced professionals, we deliver superior quality products that meet the highest industry standards. Visit our website to explore our offerings and learn more about how we can support your drilling operations.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Jan 6 2026

70 Patents

#93 in Houston, TX

#294 in Texas

#5,060 in US

#10,345 in the World

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Houston, TX, United States of America

Hydril USA Manufacturing LLC

Forward Citations = 457

49 inventors:

goldMedal Robert Arnold Judge (19 out of 30 patents)

silverMedal Ryan Cheaney Gustafson (8 out of 17 patents)

bronzeMedal William Lyle Carbaugh (8 out of 23 patents)

4.  Leonard G Childers (7 out of 9 patents)

5.  Eric Lee Milne (7 out of 8 patents)

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