Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6732544 | Feed air precooling and scrubbing system for cryogenic air separation plant | David R. Parsnick | 2004-05-11 |
| 6694776 | Cryogenic air separation system for producing oxygen | David R. Parsnick | 2004-02-24 |