Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D628508 | Hand for a watch or clock | — | 2010-12-07 |
| 5838771 | Emergency response telephone monitoring device | — | 1998-11-17 |
| 5027919 | Fluid friction controller | Gabriel Silva | 1991-07-02 |
| 4989642 | Throttling valve | Dave L. Perry, Harold H. Hopkinson, Caldwell Jones, Gabriel Silva | 1991-02-05 |
| 4520835 | Portable tent | — | 1985-06-04 |