Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5678427 | Cryogenic rectification system for producing low purity oxygen and high purity nitrogen | Dante Patrick Bonaquist | 1997-10-21 |
| 5664438 | Cryogenic side column rectification system for producing low purity oxygen and high purity nitrogen | Dante Patrick Bonaquist | 1997-09-09 |