Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6332542 | Tramp material removal from pulp feed system | R. Fred Chasse, James R. Prough, C. Bertil Stromberg, Craig A. Walley | 2001-12-25 |
| 6024227 | Tramp material removal from pulp feed systems | R. Fred Chasse, James R. Prough, C. Bertil Stromberg, Craig A. Walley | 2000-02-15 |
| 5338366 | Acid pre-hydrolysis reactor system | Todd S. Grace, Mark D. Barrett, Gary L. McCarty, Brian F. Greenwood, J. Robert Prough +1 more | 1994-08-16 |