Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5701764 | Process to produce moderate purity oxygen using a double column plus an auxiliary low pressure column | Rakesh Agrawal, Zbigniew Tadeusz Fidkowski | 1997-12-30 |
| 5592832 | Process and apparatus for the production of moderate purity oxygen | Rakesh Agrawal, Jianguo Xu | 1997-01-14 |
| 5590543 | Production of ultra-high purity oxygen from cryogenic air separation plants | Rakesh Agrawal, Thomas R. White | 1997-01-07 |