Issued Patents All Time
Showing 1–4 of 4 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 |
| 5529662 | Method of bleaching cellulosic pulps with ozone and a protective amount of an N-alkylated urea | Zheng Tan | 1996-06-25 |
| 5364503 | Nitric oxide treatment for ozone bleaching | Thomas H. Murphy | 1994-11-15 |