Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875346 | Two-statge sorption type cryogenic refrigerator including heat regeneration system | Liang-Chi Wen, Steven Bard | 1989-10-24 |
| 4835973 | Cryogenic regenerator including sarancarbon heat conduction matrix | S. Walter Petrick, Michael J. Britcliffe | 1989-06-06 |
| 4831829 | Krypton based adsorption type cryogenic refrigerator | Helene R. Schember | 1989-05-23 |