Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5685953 | Ozone bleaching with an organic solvent and mineral acid | Thomas H. Murphy, Adriaan Reinhard Pieter van Heiningen, Yonghao Ni | 1997-11-11 |
| 5609723 | Oxygen bleaching process for cellulocis pulps with a polyhydric alcohol cellulose protector | Allan M. Proust | 1997-03-11 |