Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6413018 | Method for supporting a pipeline in a trench | — | 2002-07-02 |
| 5765967 | Method and apparatus for backfilling pipeline trenches | — | 1998-06-16 |
| 5632574 | Backfilling device and apparatus therefor | Alain Lebaigue, Jean M. Meteye | 1997-05-27 |