Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D324265 | Liquid heater which operates on solar energy or any other energy source | David C. Collins | 1992-02-25 |
| D320649 | Evaporator panel to be wrapped around a solar and other atmospheric energy sources hot water heater | — | 1991-10-08 |