Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6379504 | Apparatus for pulping sawdust | Marco Marois, R. Fred Chasse, J. Wayne Chamblee, John Weston, J. Robert Prough | 2002-04-30 |
| 6368453 | Chip feeding to a comminuted cellulosic fibrous material treatment vessel | Auvo Kettunen, Richard O. Laakso, C. Bertil Stromberg, J. Robert Prough | 2002-04-09 |
| 6325888 | Method for pulping sawdust | Marco Marois, R. Fred Chasse, J. Wayne Chamblee, John Weston, J. Robert Prough | 2001-12-04 |