For the Inventor, By the Inventor

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Vallourec

USPTO Granted Patents = 34

Trademarks = 7

Forward Citations = 404

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31 inventors (with patents filed for the assignee):

Bernard A Plaquin (7 out of 7 patents)

Pierre Peytavin (6 out of 16 patents)

Andre Gueussier (5 out of 5 patents)

4. Michel Douchy (5 out of 7 patents)

5. Edmond Vachiery (4 out of 4 patents)

6. Roland Ernst (3 out of 6 patents)

7. Marcel Garnier (3 out of 4 patents)

8. Michel Giroutru (3 out of 3 patents)

9. Rene J Moreau (3 out of 7 patents)

10. Paul Bounie (3 out of 3 patents)

11. Herve Salkin (3 out of 3 patents)

12. Louis Fradin (3 out of 3 patents)

13. Jean-Louis Tranchant (2 out of 2 patents)

14. Michel Jehan (2 out of 2 patents)

15. Didier Grare (2 out of 2 patents)

34 patents: Sort by Forward Citations

1. 4974660 - Process and apparatus for the production of hollow bodies by (1990-12-04),

2. 4906292 - Composite article having a tubular sheath containing a compacted (1990-03-06),

3. 4828295 - Steel tube threaded joint having an impervious device at the level of (1989-05-09),

4. 4828294 - Threaded joint for steel pipes containing a sealing device located at (1989-05-09),

5. 4816068 - Composite article having a tubular sheath containing a compacted (1989-03-28),

6. 4796668 - Device for protecting threadings and butt-type joint bearing surfaces of (1989-01-10),

7. 4791816 - Device for determining when a threaded tube joint with screw limiting (1988-12-20),

8. 4787680 - Semi-rigid axle for a vehicle (1988-11-29),

9. 4729422 - Process and apparatus for the production of hollow bodies by (1988-03-08),

10. 4713955 - Method permitting the increase of operations of cold pilger mills and an (1987-12-22),

11. 4708897 - Composite product having a tubular metal casing with a welt-type seam, (1987-11-24),

12. 4700576 - Process and device for executing the screwing of a threaded joint for (1987-10-20),

13. 4691791 - Knurled drill stem (1987-09-08),

14. 4665780 - Method of machining threaded pipe-ends (1987-05-19),

15. 4658617 - Method permitting the increase of operations of cold pilger mills and an (1987-04-21),

Vallourec is a leading global provider of seamless steel pipes and tubes for various industries including oil and gas, power generation, and petrochemicals. With over 19,000 employees worldwide, Vallourec offers a comprehensive range of products and services, from research and development to manufacturing and distribution. Their innovative solutions and high-quality products make them a trusted partner for customers around the world.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

34 Patents

#38 in

#636 in France

#19,056 in the World

Vallourec

Forward Citations = 404

31 inventors:

Bernard A Plaquin (7 out of 7 patents)

Pierre Peytavin (6 out of 16 patents)

Andre Gueussier (5 out of 5 patents)

4. Michel Douchy (5 out of 7 patents)

5. Edmond Vachiery (4 out of 4 patents)

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