Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4438638 | Refrigeration process using two-phase turbine | Lance G. Hays, Emil W. Ritzi | 1984-03-27 |
| 4391102 | Fresh water production from power plant waste heat | William E. Amend, Norman L. Helgeson | 1983-07-05 |
| 4336693 | Refrigeration process using two-phase turbine | Lance G. Hays, Emil W. Ritzi | 1982-06-29 |
| 4227373 | Waste heat recovery cycle for producing power and fresh water | William E. Amend | 1980-10-14 |