Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5141538 | Scrubber for grease exhaust duct | Jim Derington | 1992-08-25 |
| 4372195 | Mass flow thermal compensator | — | 1983-02-08 |
| 4180980 | Hydropressure power | Ronald Marks | 1980-01-01 |