Issued Patents 1994
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5364505 | Pressurized ozone pulp delignification reactor and a compressor for supplying ozone to the reactor | Erwin D. Funk, Stephen J. Dunn | 1994-11-15 |
| 5360514 | Treatment of bleach plant filtrations using a magnesium filter | Anja Klarin | 1994-11-01 |
| 5346591 | Apparatus for treatment of chips with heated black liquor | — | 1994-09-13 |
| 5340440 | Method for recovering chemicals using recovery boiler having at least 2 different melt sections | — | 1994-08-23 |
| 5328563 | Method of treating material containing sodium sulphate and/or sodium carbonate in a pulp mill | Anja Klarin | 1994-07-12 |
| 5326433 | Multi-level sulfide content white liquor production and utilization in cellulose pulping | Rolf Ryham, James W. Smith, Jian E. Jiang | 1994-07-05 |
| 5323914 | Method of and apparatus for separating heavy impurities from fiber suspensions in connection with pumping | Raimo Pitkanen, Pentti Vikio | 1994-06-28 |
| 5324166 | Apparatus and method for pumping a liquid | Jorma Elonen, Heikki Manninen | 1994-06-28 |