Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4948301 | Device comprising a valve for injecting grout around or inside a tubular pile driven into the ground | Herve Barthelemy | 1990-08-14 |
| 4909673 | Process and device for the injection of a slurry in the vicinity of the walls of a tubular pile driven into the ground | Herve Barthelemy, Michel Brochier, Yves Legendre | 1990-03-20 |
| 4902171 | Process for reinforcing a driven tubular piling, the piling obtained by this process, an arrangement for implementing the process | Herve Barthelemy | 1990-02-20 |