Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6615795 | Internal combustion engine | David Martin | 2003-09-09 |
| 4577724 | Exhaust mufflers for internal combustion engines | — | 1986-03-25 |
| 4467887 | Exhaust mufflers for internal combustion engines | — | 1984-08-28 |