Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5341646 | Triple column distillation system for oxygen and pressurized nitrogen production | Rakesh Agrawal, Jeffrey S. Langston, Jianguo Xu | 1994-08-30 |
| 5303530 | Spring unit assembly | — | 1994-04-19 |