Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4860038 | Underwater bubble camera | Herbert Thatcher, Richard Tackabery | 1989-08-22 |
| 4821665 | Submersible ROV for cleaning and inspecting metal | Brian P. Matthias, Felixberto A. Galasan | 1989-04-18 |
| 4808837 | Submersible electrical power supply | Brian P. Matthias, Daniel Gravitz | 1989-02-28 |