Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5486268 | Oxygen delignification of old corrugated containers | — | 1996-01-23 |
| 5350493 | Oxygen delignification of old corrugated containers | — | 1994-09-27 |
| 5302244 | Oxygen delignification of waste cellulosic paper products | — | 1994-04-12 |
| 5147503 | Recycling waste cellulosic material with sodium sulphide digestion | — | 1992-09-15 |
| 4495163 | Fluidized bed sulfur dioxide removal | — | 1985-01-22 |
| 4309393 | Fluidized bed sulfur dioxide removal | — | 1982-01-05 |
| 4255168 | Turbulent transport contactor and method of operation | — | 1981-03-10 |