Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4971752 | Safety design for nuclear power plants | — | 1990-11-20 |
| 4910450 | Low cost three phase energy economizer | Lowell C. Hahn | 1990-03-20 |
| 4864212 | Energy economizing AC power system | — | 1989-09-05 |
| 4341984 | Electronic commutation for direct current electric motors | Rhey W. Hedges | 1982-07-27 |
| 4307706 | Flat plate solar boilers | — | 1981-12-29 |
| 4190793 | Energy economizer for induction motors | Rhey W. Hedges | 1980-02-26 |