Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8650875 | Direct exchange geothermal refrigerant power advanced generating system | B. Ryland Wiggs | 2014-02-18 |
| 4272965 | Method and apparatus for controlling and conserving energy in an absorption refrigeration system | — | 1981-06-16 |