Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5993760 | Bulk nitrogen purification process that requires no hydrogen in the regeneration | Thomas Hsiao-Ling Hsiung | 1999-11-30 |
| 5863852 | Regeneration of adsorbent beds | Thomas Hsiao-Ling Hsiung | 1999-01-26 |
| 5071815 | Method for producing catalysts | Klaus H. Oehr | 1991-12-10 |