Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4799359 | Cryogenic refrigerator compressor with externally adjustable by-pass/relief valve | — | 1989-01-24 |
| 4761960 | Cryogenic refrigeration system having an involute laminated stator for its linear drive motor | Graham J. Higham, Howard D. Snively, Gerald R. Pruitt | 1988-08-09 |
| 4718442 | Cryogenic refrigerator compressor with externally adjustable by-pass/relief valve | — | 1988-01-12 |
| 4606194 | Cryocooler having low magnetic signature | F. William Pirtle, Peter K. Bertsch | 1986-08-19 |
| 4418918 | Static seal device with plastically deformable metal for cryogenic refrigerators | — | 1983-12-06 |
| 4355519 | Split ring seal for cryogenic refrigerator | John E. Kercheval | 1982-10-26 |