For the Inventor, By the Inventor

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Fere en Tardenois, France

Tubest

USPTO Granted Patents = 2

Trademarks = 2

Forward Citations = 13

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4 inventors (with patents filed for the assignee):

Marcel Le Foll (2 out of 3 patents)

Gerard Briand (1 out of 1 patent)

Dominique Maingre (1 out of 1 patent)

4. Daniel Valtre (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 5934710 - Device for the sealed butt connection of two metal pipes (1999-08-10),

2. 5562126 - Reinforced flexible pipe (1996-10-08),

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USPTO Data Jan 1 1976 - Dec 16 2025

2 Patents

#1 in Fere en Tardenois

#5,053 in France

Fere en Tardenois, France

Tubest

Forward Citations = 13

4 inventors:

Marcel Le Foll (2 out of 3 patents)

Gerard Briand (1 out of 1 patent)

Dominique Maingre (1 out of 1 patent)

4. Daniel Valtre (1 out of 1 patent)

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