Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5048297 | Method and apparatus for controlling the movement of a free, gas-driven displacer in a cooling engine | Richard J. Birch | 1991-09-17 |
| 4841732 | System and apparatus for producing and storing liquid gases | — | 1989-06-27 |
| 4792346 | Method and apparatus for snubbing the movement of a free, gas-driven displacer in a cooling engine | — | 1988-12-20 |
| 4520630 | Cryogenic refrigerator and heat source | — | 1985-06-04 |
| 4481777 | Cryogenic refrigerator | — | 1984-11-13 |
| 4471626 | Cryogenic refrigerator | — | 1984-09-18 |
| 4438631 | Cryogenic refrigerator | — | 1984-03-27 |
| 4391103 | Fluidic cryogenic refrigerator | — | 1983-07-05 |
| 4389850 | Hybrid cryogenic refrigerator | — | 1983-06-28 |
| 4388809 | Cryogenic refrigerator | — | 1983-06-21 |
| 4372128 | In-line cryogenic refrigeration apparatus operating on the Stirling cycle | — | 1983-02-08 |
| 4339927 | Gas-driven fluid flow control valve and cryopump incorporating the same | — | 1982-07-20 |
| 4333755 | Cryogenic apparatus | — | 1982-06-08 |
| 4310337 | Cryogenic apparatus | — | 1982-01-12 |
| 4305741 | Cryogenic apparatus | — | 1981-12-15 |
| 4294077 | Cryogenic refrigerator with dual control valves | — | 1981-10-13 |
| 4294600 | Valves for cryogenic refrigerators | Calvin Lam | 1981-10-13 |
| 4259844 | Stacked disc heat exchanger for refrigerator cold finger | John T. Harvell, Robert M. Lewis | 1981-04-07 |