Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4399808 | Drainable solar collector unit | Joseph R. Frissora | 1983-08-23 |
| 4232655 | Solar energy collection | Joseph R. Frissora | 1980-11-11 |
| 4201264 | Solar water tank | — | 1980-05-06 |