Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6085806 | Environmentally safe kit for changing motor oil | Chester Davis | 2000-07-11 |
| RE36093 | Submersible boat | David B. Wyman | 1999-02-16 |
| 5377613 | Submersible boat | David B. Wyman | 1995-01-03 |