Jean-Paul Geffriaud

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Paris, FR

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Patents Grantslast 30 patents

Information Patent Grant
Device comprising a valve for injecting grout around or inside a tu...
- Patent number 4,948,301
- Issue date Aug 14, 1990
- Soletanche
- Jean-Paul Geffriaud
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Process and device for the injection of a slurry in the vicinity of...
- Patent number 4,909,673
- Issue date Mar 20, 1990
- Societe Anonyme dite: Soletanche
- Herve Barthelemy
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Process for reinforcing a driven tubular piling, the piling obtaine...
- Patent number 4,902,171
- Issue date Feb 20, 1990
- Soletanche
- Jean-Paul Geffriaud
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING