Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5292433 | Method and apparatus for recovering oil spill | Gregory T. Fletcher | 1994-03-08 |
| 5267622 | Impact block assembly for percussion drilling apparatus | Gregory T. Fletcher | 1993-12-07 |
| 5142499 | Method and apparatus for shallow water seismic operations | — | 1992-08-25 |
| 5120099 | Submersible grappling device | — | 1992-06-09 |
| 4883133 | Combustion operated drilling apparatus | Gregory T. Fletcher | 1989-11-28 |