Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5145279 | Public works machine usable more particularly for laying vertical drains | Gerard Larcheron | 1992-09-08 |
| 5129762 | Metallic turbular pile equipped with a device able to inject grout close to the wall of the pile | — | 1992-07-14 |
| 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, Jean-Paul Geffriaud | 1990-03-20 |
| 4904119 | Process for placing a piling in the ground, a drilling machine and an arrangement for implementing this process | Herve Barthelemy | 1990-02-27 |
| 4770255 | Arrangement for underwater drilling of foundations | Herve Barthelemy, Karl Bollinger, Michel Brochier, Maurice Gau | 1988-09-13 |
| 4742876 | Submarine drilling device | Herve Barthelemy, Karl Bollinger, Michel Brochier, Maurice Gau | 1988-05-10 |
| 4682660 | Hydro-drill with circular impression | Herve Barthelemy | 1987-07-28 |