Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6582554 | Continuous digester having a sectioned top separator with multiple liquor extraction ports | Kaj Henricson, C. Bertil Stromberg, John Bolles, Keith Vogel, Patrick Sullivan | 2003-06-24 |
| 6368453 | Chip feeding to a comminuted cellulosic fibrous material treatment vessel | Auvo Kettunen, C. Bertil Stromberg, J. Robert Prough, Jay Miele | 2002-04-09 |
| 6346167 | Dissolved solids control in pulp production | Bruno Marcoccia, J. Robert Prough, Joseph R. Phillips, Rolf Ryham, Jan T. Richardsen +1 more | 2002-02-12 |
| 6280568 | Dissolved organic material control in a cellulose pulp continuous digester | Bruno Marcoccia, J. Robert Prough, Joseph R. Phillips, Rolf Ryham, Jan T. Richardsen +1 more | 2001-08-28 |
| 6174411 | Continuous digester with inverted top separator | C. Bertil Stromberg, Kaj Henricson | 2001-01-16 |
| 6159337 | Dissolved organic materials control in cellulose pulp production | Bruno Marcoccia, J. Robert Prough, Joseph R. Phillips, Rolf Ryham, Jan T. Richardsen +1 more | 2000-12-12 |
| 6132556 | Method of controlling pulp digester pressure via liquor extraction | C. Bertil Stromberg, J Robert Prough, Bruno Marcoccia, Carl Luhrmann | 2000-10-17 |
| 6086712 | DOM control in cellulose pulp production | Bruno Marcoccia, J. Robert Prough, Joseph R. Phillips, Rolf Ryham, Jan T. Richardsen +1 more | 2000-07-11 |
| 6024837 | Low temperature gas phase continuous digester | C. Bertil Stromberg, Kaj Henricson | 2000-02-15 |
| 5882477 | Continuous digester with a low temperature gas-phase | C. Bertil Stromberg | 1999-03-16 |
| 5849150 | Low dissolved solids control in pulp production | Bruno Marcoccia, J. Robert Prough, Joseph R. Phillips, Rolf Ryham, Jan T. Richardsen +1 more | 1998-12-15 |
| 5849151 | Continuous digester having means for implementing low dissolved solids profiling | Bruno Marcoccia, J. Robert Prough, R. Fred Chasse | 1998-12-15 |
| 5824188 | Method of controlling the pressure of a continuous digester using an extraction-dilution | J. Robert Prough, Bruno Marcoccia, Carl Luhrmann | 1998-10-20 |
| 5662775 | Continuous digester with dissolved solids handling | Bruno Marcoccia, J. Robert Prough, R. Fred Chasse | 1997-09-02 |
| 5620562 | Dissolved solids control in pulp production | Bruno Marcoccia, J. Robert Prough, Joseph R. Phillips, Rolf Ryham, Jan T. Richardsen +1 more | 1997-04-15 |
| 5575890 | Method for selectively increasing the sulfide ion concentration and sulfidity of kraft cooking liquor during kraft cooking of wood | J. Robert Prough, Bruno Marcoccia, Carl Luhrmann | 1996-11-19 |
| 5547012 | Dissolved solids control in pulp production | Bruno Marcoccia, J. Robert Prough, Joseph R. Phillips, Rolf Ryham, Jan T. Richardsen +1 more | 1996-08-20 |
| 5536366 | Digester system for implementing low dissolved solids profiling | Bruno Marcoccia, J. Robert Prough, R. Fred Chasse | 1996-07-16 |
| 5489363 | Pulping with low dissolved solids for improved pulp strength | Bruno Marcoccia, J. Robert Prough, Joseph R. Phillips, Rolf Ryham, Jan T. Richardsen +1 more | 1996-02-06 |
| 5401361 | Completely coutercurrent cook continuous digester | J. Robert Prough, C. Bertil Stromberg, Bruno Marcoccia | 1995-03-28 |
| 4927312 | Chip gates with air lock | Michael D. Meredith, Joseph R. Phillips, C. Bertil Stromberg | 1990-05-22 |