Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5082617 | Thulium-170 heat source | Carl E. Walter, Richard A. Van Konynenburg | 1992-01-21 |
| 4474170 | Glass heat pipe evacuated tube solar collector | Robert D. McConnell | 1984-10-02 |
| 4394634 | Vapor cooled current lead for cryogenic electrical equipment | — | 1983-07-19 |