Inventor
LAAKSO RICHARD O
US17 patents
⚠️ This page may combine multiple inventors who share the name “LAAKSO RICHARD O”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AHLSTROM MACHINERY INC
7 patentsUS5620562AApr 15, 1997
Dissolved solids control in pulp production
AHLSTROM MACHINERY INC29 citations96
US6086712AJul 11, 2000
DOM control in cellulose pulp production
AHLSTROM MACHINERY INC20 citations92
US5849150ADec 15, 1998
Low dissolved solids control in pulp production
AHLSTROM MACHINERY INC18 citations92
US5849151ADec 15, 1998
Continuous digester having means for implementing low dissolved solids profiling
AHLSTROM MACHINERY INC27 citations92
US5662775ASep 2, 1997
Continuous digester with dissolved solids handling
AHLSTROM MACHINERY INC35 citations92
US5536366AJul 16, 1996
Digester system for implementing low dissolved solids profiling
AHLSTROM MACHINERY INC33 citations92
US5824188AOct 20, 1998
Method of controlling the pressure of a continuous digester using an extraction-dilution
AHLSTROM MACHINERY INC21 citations91
KAMYR INC
5 patentsUS5547012AAug 20, 1996
Dissolved solids control in pulp production
KAMYR INC33 citations96
US5489363AFeb 6, 1996
Pulping with low dissolved solids for improved pulp strength
KAMYR INC35 citations96
US5575890ANov 19, 1996
Method for selectively increasing the sulfide ion concentration and sulfidity of kraft cooking liquor during kraft cooking of wood
KAMYR INC22 citations91
US5401361AMar 28, 1995
Completely coutercurrent cook continuous digester
KAMYR INC18 citations74
US4927312AMay 22, 1990
Chip gates with air lock
KAMYR INC18 citations74
ANDRITZ AHLSTROM INC
4 patentsUS6346167B2Feb 12, 2002
Dissolved solids control in pulp production
ANDRITZ AHLSTROM INC19 citations92
US6132556AOct 17, 2000
Method of controlling pulp digester pressure via liquor extraction
ANDRITZ AHLSTROM INC24 citations90
US6280568B1Aug 28, 2001
Dissolved organic material control in a cellulose pulp continuous digester
ANDRITZ AHLSTROM INC12 citations82
US6159337ADec 12, 2000
Dissolved organic materials control in cellulose pulp production
ANDRITZ AHLSTROM INC13 citations82