Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4899682 | Catamaran-type semisubmersible drilling vessel for offshore drilling | Jean-Michel Chevallier, Gene Hampton | 1990-02-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4899682 | Catamaran-type semisubmersible drilling vessel for offshore drilling | Jean-Michel Chevallier, Gene Hampton | 1990-02-13 |