Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4685489 | Valve assembly and compressor modulation apparatus | Kyung Woo Yun, Gerald M. Long, John P. Elson | 1987-08-11 |
| 4331420 | Reversible unidirectional flow pump with frictionally engaged axial valve plate | — | 1982-05-25 |
| 4331421 | Reversible unidirectional flow pump with axial frictionally engaged recessed valve plate | Lawrence W. Cheney | 1982-05-25 |