Inventor · disambiguated record
C. Bertil Stromberg
Also filed as: STROMBERG BERTIL C · STROMBERG C B · STROMBERG C BERTIL
47 granted patents·22 pending applications·732 citations·filing 1987–2012
98Inventor score
Top patents by PatentIndex Score
69 records- 0196US5753075AMethod and system for feeding comminuted fibrous materialFiled 1996·Granted May 19, 1998·71 cites·20 claims
- 0292US6325890B1Feeding comminuted fibrous materialANDRITZ AHLSTROM INC·Filed 2000·Granted Dec 4, 2001·29 cites·8 claims
- 0390US6176971B1Heat economy enhancements for the recovery and use of energy obtained from spent cooking liquorsANDRITZ AHLSTROM INC·Filed 1998·Granted Jan 23, 2001·49 cites·20 claims
- 0489US6841042B2Feeding comminuted fibrous material using high pressure screw and centrifugal pumpsANDRITZ INC·Filed 2003·Granted Jan 11, 2005·24 cites·12 claims
- 0589US6576084B1Method of pretreating pulp with yield or strength-enhancing additiveANDRITZ INC·Filed 2000·Granted Jun 10, 2003·18 cites·16 claims
- 0689US6368453B1Chip feeding to a comminuted cellulosic fibrous material treatment vesselANDRITZ INC·Filed 2000·Granted Apr 9, 2002·14 cites·12 claims
- 0789US6336993B1Metal removal from comminuted fibrous material during feedingANDRITZ AHLSTROM INC·Filed 2000·Granted Jan 8, 2002·20 cites·22 claims
- 0888US6436233B1Feeding cellulose material to a treatment vesselANDRITZ INC·Filed 2000·Granted Aug 20, 2002·15 cites·21 claims
- 0986US6551462B2System for feeding comminuted fibrous materialANDRITZ INC·Filed 2001·Granted Apr 22, 2003·13 cites·15 claims
- 1086US6447645B1Feeding cellulose material to a treatment vesselANDRITZ INC·Filed 2001·Granted Sep 10, 2002·13 cites·11 claims
- 1186US5882477AContinuous digester with a low temperature gas-phaseAHLSTROM MACHINERY INC·Filed 1997·Granted Mar 16, 1999·29 cites·20 claims
- 1285US7556713B2Method and system for feeding cellulose chips to a high pressure continuous cooking systemANDRITZ INC·Filed 2005·Granted Jul 7, 2009·5 cites·16 claims
- 1385US5795438AMethod and apparatus for feeding multiple digestersAHLSTROM MACHINERY INC·Filed 1996·Granted Aug 18, 1998·33 cites·20 claims
- 1485US4944842AMethod for reducing contamination in pulp processingKAMYR INC·Filed 1987·Granted Jul 31, 1990·30 cites·20 claims
- 1583US6569289B2Cellulose slurry treating systems for adding AQ to a cellulose slurry in the substantial absence of alkaliANDRITZ INC·Filed 2001·Granted May 27, 2003·9 cites·2 claims
- 1683US6506283B2Pretreatment of chips before cookingANDRITZ INC·Filed 2001·Granted Jan 14, 2003·9 cites·3 claims
- 1782US6174411B1Continuous digester with inverted top separatorANDRITZ AHLSTROM INC·Filed 1998·Granted Jan 16, 2001·29 cites·21 claims
- 1881US6544384B2Pretreatment of chips before cookingANDRITZ INC·Filed 2001·Granted Apr 8, 2003·8 cites·3 claims
- 1981US6451172B1In-line drainer enhancementsANDRITZ INC·Filed 2000·Granted Sep 17, 2002·9 cites·27 claims
- 2081US5985096AVertical pulping digester having substantially constant diameterAHLSTROM MACHINERY INC·Filed 1997·Granted Nov 16, 1999·26 cites·22 claims
- 2179US6132556AMethod of controlling pulp digester pressure via liquor extractionANDRITZ AHLSTROM INC·Filed 1998·Granted Oct 17, 2000·24 cites·20 claims
- 2278US5813758AConcentric ring fluidizing mixerAHLSTROM MACHINERY INC·Filed 1993·Granted Sep 29, 1998·54 cites·16 claims
- 2377US6277240B1Method for continuously pulping cellulosic fibrous materialANDRITZ AHLSTROM INC·Filed 1998·Granted Aug 21, 2001·19 cites·18 claims
- 2477US6106668AMethod for feeding comminuted fibrous materialAHLSTROM MACHINERY INC·Filed 1998·Granted Aug 22, 2000·22 cites·25 claims
- 2576US8734610B2Two vessel reactor system and method for hydrolysis and digestion of wood chips with chemical enhanced wash methodSHIN NAMHEE·Filed 2008·Granted May 27, 2014·3 cites·18 claims
- 2674US9260818B2Single vessel reactor system for hydrolysis and digestion of wood chips with chemical enhanced wash methodSHIN NAMHEE·Filed 2008·Granted Feb 16, 2016·3 cites·9 claims
- 2774US4927312AChip gates with air lockKAMYR INC·Filed 1988·Granted May 22, 1990·18 cites·12 claims
- 2873US7988822B2Treatment vessel for straw or other light bulky materialANDRITZ INC·Filed 2008·Granted Aug 2, 2011·1 cites·10 claims
- 2972US8246750B2Apparatus and method for hydrolysis of cellulosic material in a multi-step process to produce C5 and C6 sugars using a single vesselSHIN NAMHEE·Filed 2011·Granted Aug 21, 2012·1 cites·7 claims
- 3072US7658818B2Method for converting a digester for use as a gas phase and hydraulic phase continuous digesterANDRITZ INC·Filed 2007·Granted Feb 9, 2010·1 cites·16 claims
- 3171US7105076B2Gas phase continuous digester having an inverted top separator with liquor injectionANDRITZ INC·Filed 2002·Granted Sep 12, 2006·4 cites·22 claims
- 3271US6024837ALow temperature gas phase continuous digesterAHLSTROM MACHINERY INC·Filed 1998·Granted Feb 15, 2000·14 cites·8 claims
- 3369US6582554B1Continuous digester having a sectioned top separator with multiple liquor extraction portsANDRITZ INC·Filed 2002·Granted Jun 24, 2003·3 cites·13 claims
- 3469US5401361ACompletely coutercurrent cook continuous digesterKAMYR INC·Filed 1992·Granted Mar 28, 1995·18 cites·18 claims
- 3568US5958181AContinuous cooking with a two-stage cool impregnationAHLSTROM MACHINERY INC·Filed 1997·Granted Sep 28, 1999·14 cites·18 claims
- 3664US6248208B1Pretreatment of chips before cookingANDRITZ AHLSTROM INC·Filed 1995·Granted Jun 19, 2001·10 cites·3 claims
- 3763US8192549B2Apparatus and method for hydrolysis of cellulosic material in a two-step processSHIN NAMHEE·Filed 2009·Granted Jun 5, 2012·0 cites·3 claims
- 3863US6024227ATramp material removal from pulp feed systemsAHLSTROM MACHINERY INC·Filed 1997·Granted Feb 15, 2000·19 cites·20 claims
- 3962US6153300ABleaching cellulose pulp having cleanliness which varies significantly over time using at least two different bleaching stages and bleaching chemicalsAHLSTROM MACHINERY INC·Filed 1994·Granted Nov 28, 2000·21 cites·19 claims
- 4061US2009308383A1Apparatus and method for hydrolysis of cellulosic material in a multi-step process to produce c5 and c6 sugars using a single vesselANDRITZ INC·Filed 2009·Application pending·0 cites
- 4160US7455749B2Gas phase continuous digester having an inverted top separator with liquor injectionANDRITZ INC·Filed 2006·Granted Nov 25, 2008·0 cites·20 claims
- 4260US7309401B2Top separator for gas phase and hydraulic phase continuous digesters and method for converting digesterANDRITZ INC·Filed 2004·Granted Dec 18, 2007·1 cites·10 claims
- 4360US2007240837A1Hardwood alkaline pulping processes and systemsANDRITZ INC·Filed 2007·Application pending·0 cites
- 4459US6673201B2Top separator with intraseal for digester vessel in a pulp or fiber processing systemANDRITZ INC·Filed 2002·Granted Jan 6, 2004·7 cites·5 claims
- 4558US6332542B2Tramp material removal from pulp feed systemANDRITZ AHLSTROM INC·Filed 2001·Granted Dec 25, 2001·12 cites·9 claims
- 4658US2012305209A1Hardwood alkaline pulping processes and systemsSHIN NAM HEE·Filed 2012·Application pending·0 cites
- 4754US2009038767A1Method and System for Semi-Chemical PulpingANDRITZ INC·Filed 2008·Application pending·0 cites
- 4854US2009020244A1Impregnation vessel with convergence side relief and method for heat injection at convergenceANDRITZ INC·Filed 2008·Application pending·0 cites
- 4953US6120647ASimplified liquid removal system for a cellulose pulp digesterAHLSTROM MACHINERY INC·Filed 1998·Granted Sep 19, 2000·7 cites·21 claims
- 5053US2003089466A1Chip feeding to a comminuted cellulosic fibrous material treatment vesselANDRITZ INC·Filed 2002·Application pending·0 cites
Showing the top 50 of 69 patent records by PatentIndex Score.
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