Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5509009 | Video and aural communications system | Michael W. Thomas | 1996-04-16 |
| 5202759 | Surveillance system | — | 1993-04-13 |
| 4985142 | Quick release filter by-pass valve | Ray C. Ramirez | 1991-01-15 |
| 4589524 | Overfill valve | — | 1986-05-20 |