Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6379504 | Apparatus for pulping sawdust | Jay Miele, Marco Marois, J. Wayne Chamblee, John Weston, J. Robert Prough | 2002-04-30 |
| 6346167 | Dissolved solids control in pulp production | Bruno Marcoccia, J. Robert Prough, Richard O. Laakso, Joseph R. Phillips, Rolf Ryham +1 more | 2002-02-12 |
| 6332542 | Tramp material removal from pulp feed system | Vic L. Bilodeau, James R. Prough, C. Bertil Stromberg, Craig A. Walley | 2001-12-25 |
| 6325888 | Method for pulping sawdust | Jay Miele, Marco Marois, J. Wayne Chamblee, John Weston, J. Robert Prough | 2001-12-04 |
| 6280568 | Dissolved organic material control in a cellulose pulp continuous digester | Bruno Marcoccia, J. Robert Prough, Richard O. Laakso, Joseph R. Phillips, Rolf Ryham +1 more | 2001-08-28 |
| 6176971 | Heat economy enhancements for the recovery and use of energy obtained from spent cooking liquors | Ella Sun Yu, C. Bertil Stromberg, Rolf Ryham | 2001-01-23 |
| 6159337 | Dissolved organic materials control in cellulose pulp production | Bruno Marcoccia, J. Robert Prough, Richard O. Laakso, Joseph R. Phillips, Rolf Ryham +1 more | 2000-12-12 |
| 6123808 | Distribution of dilution liquor to the discharge of a cellulose pulp digester | Grant Bechard, John Hefele, Larry W. Laakso, Mark D. Barrett | 2000-09-26 |
| 6086712 | DOM control in cellulose pulp production | Bruno Marcoccia, J. Robert Prough, Richard O. Laakso, Joseph R. Phillips, Rolf Ryham +1 more | 2000-07-11 |
| 6024227 | Tramp material removal from pulp feed systems | Vic L. Bilodeau, James R. Prough, C. Bertil Stromberg, Craig A. Walley | 2000-02-15 |
| 5849150 | Low dissolved solids control in pulp production | Bruno Marcoccia, J. Robert Prough, Richard O. Laakso, Joseph R. Phillips, Rolf Ryham +1 more | 1998-12-15 |
| 5849151 | Continuous digester having means for implementing low dissolved solids profiling | Bruno Marcoccia, J. Robert Prough, Richard O. Laakso | 1998-12-15 |
| 5674359 | Continuous cooking of cellulosic fibrous material with cold alkali impregnation | Bruno Marcoccia, Kaj Henricson | 1997-10-07 |
| 5662775 | Continuous digester with dissolved solids handling | Bruno Marcoccia, J. Robert Prough, Richard O. Laakso | 1997-09-02 |
| 5620562 | Dissolved solids control in pulp production | Bruno Marcoccia, J. Robert Prough, Richard O. Laakso, Joseph R. Phillips, Rolf Ryham +1 more | 1997-04-15 |
| 5547012 | Dissolved solids control in pulp production | Bruno Marcoccia, J. Robert Prough, Richard O. Laakso, Joseph R. Phillips, Rolf Ryham +1 more | 1996-08-20 |
| 5536366 | Digester system for implementing low dissolved solids profiling | Bruno Marcoccia, J. Robert Prough, Richard O. Laakso | 1996-07-16 |
| 5489363 | Pulping with low dissolved solids for improved pulp strength | Bruno Marcoccia, J. Robert Prough, Richard O. Laakso, Joseph R. Phillips, Rolf Ryham +1 more | 1996-02-06 |