Issued Patents 2003
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6589391 | Top separator with intraseal for digester vessel in a pulp or fiber processing system | Keith Vogel, John Bolles | 2003-07-08 |
| 6582554 | Continuous digester having a sectioned top separator with multiple liquor extraction ports | Kaj Henricson, Richard O. Laakso, John Bolles, Keith Vogel, Patrick Sullivan | 2003-06-24 |
| 6576084 | Method of pretreating pulp with yield or strength-enhancing additive | Joseph R. Phillips | 2003-06-10 |
| 6569289 | Cellulose slurry treating systems for adding AQ to a cellulose slurry in the substantial absence of alkali | Joseph R. Phillips | 2003-05-27 |
| 6551462 | System for feeding comminuted fibrous material | J. Robert Prough, Tim Pease | 2003-04-22 |
| 6544384 | Pretreatment of chips before cooking | Kaj Henricson, Aki Vilpponen, Hannu RÅMARK, Auvo Kettunen | 2003-04-08 |
| 6506283 | Pretreatment of chips before cooking | Kaj Henricson, Aki Vilpponen, Hannu RÅMARK, Auvo Kettunen | 2003-01-14 |