Issued Patents 2002
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6451172 | In-line drainer enhancements | Mark D. Barrett, J. Robert Prough | 2002-09-17 |
| 6447645 | Feeding cellulose material to a treatment vessel | Mark D. Barrett, J. Robert Prough | 2002-09-10 |
| 6436233 | Feeding cellulose material to a treatment vessel | Mark D. Barrett, J. Robert Prough | 2002-08-20 |
| 6368453 | Chip feeding to a comminuted cellulosic fibrous material treatment vessel | Auvo Kettunen, Richard O. Laakso, J. Robert Prough, Jay Miele | 2002-04-09 |
| 6336993 | Metal removal from comminuted fibrous material during feeding | — | 2002-01-08 |