Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5339641 | Cryogenic liquid nitrogen production system | Mary J. Mathis | 1994-08-23 |
| 5329775 | Cryogenic helium production system | Brian C. Fiedler, James R. Handley | 1994-07-19 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5339641 | Cryogenic liquid nitrogen production system | Mary J. Mathis | 1994-08-23 |
| 5329775 | Cryogenic helium production system | Brian C. Fiedler, James R. Handley | 1994-07-19 |