Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5791374 | Check valve for the pre-combustion chamber of an internal combustion engine | Tom Riggs | 1998-08-11 |
| 5724731 | Method of field installing a pre-combustion chamber for an internal combustion engine | Tom Riggs | 1998-03-10 |
| 5662082 | Pre-combustion chamber for internal combustion engine and method of manufacture thereof | Tom Riggs | 1997-09-02 |