Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE31175 | Means and methods for sending heat downwardly | — | 1983-03-15 |
| 4320604 | Heavily insulated shelter structure | — | 1982-03-23 |
| 4289115 | Heating and cooling of a heavily insulated building through the use only of solar energy | — | 1981-09-15 |
| 4217883 | Metal screen solar heat collector wall | — | 1980-08-19 |
| 4214574 | Solar heat collector | — | 1980-07-29 |
| 4210129 | Solar heat collector | — | 1980-07-01 |
| 4210201 | Low cost heat storage tank and heat exchanger | — | 1980-07-01 |