Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6253778 | Rotary valve | James Smolarek | 2001-07-03 |
| 6212904 | Liquid oxygen production | Ivan A. Arkharov, Alexey M. Arkharov, Tommy M. Tetreault | 2001-04-10 |
| 6143056 | Rotary valve for two bed vacuum pressure swing absorption system | James Smolarek | 2000-11-07 |
| 5348456 | Helical dry screw expander with sealing gas to the shaft seal system | Neno T. Nenov | 1994-09-20 |
| 5228298 | Cryogenic rectification system with helical dry screw expander | Neno T. Nenov | 1993-07-20 |
| 4978278 | Turbomachine with seal fluid recovery channel | — | 1990-12-18 |
| 4904158 | Method and apparatus for cryogenic liquid expansion | — | 1990-02-27 |
| 4900165 | Bearing support system | Neno T. Nenov | 1990-02-13 |
| 4778497 | Process to produce liquid cryogen | Thomas C. Hanson | 1988-10-18 |
| 4430011 | Integral bearing system | — | 1984-02-07 |
| 4253519 | Enhancement for film condensation apparatus | Elias G. Ragi | 1981-03-03 |