Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5622644 | Mixed gas R-12 refrigeration apparatus | Richard Stevenson, Mikhail Boyarsky, Oleg N. Podcherniev | 1997-04-22 |
| 5595065 | Closed cycle cryogenic refrigeration system with automatic variable flow area throttling device | Michael Boiarski, Ralph C. Longsworth, Dennis Hill, Lawrence A. Klusmier, Ajay Khatri +1 more | 1997-01-21 |