Inventor · disambiguated record
Rolf Ryham
Also filed as: RYHAM ROLF · RYHAM ROLF C
40 granted patents·2 pending applications·769 citations·filing 1979–2014
98Inventor score
Top patents by PatentIndex Score
42 records- 0196US5753075AMethod and system for feeding comminuted fibrous materialFiled 1996·Granted May 19, 1998·71 cites·20 claims
- 0294US5489363APulping with low dissolved solids for improved pulp strengthKAMYR INC·Filed 1993·Granted Feb 6, 1996·35 cites·41 claims
- 0393US6346167B2Dissolved solids control in pulp productionANDRITZ AHLSTROM INC·Filed 2001·Granted Feb 12, 2002·19 cites·9 claims
- 0493US5547012ADissolved solids control in pulp productionKAMYR INC·Filed 1993·Granted Aug 20, 1996·33 cites·31 claims
- 0592US5620562ADissolved solids control in pulp productionAHLSTROM MACHINERY INC·Filed 1996·Granted Apr 15, 1997·29 cites·30 claims
- 0690US6176971B1Heat 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
- 0788US6280568B1Dissolved organic material control in a cellulose pulp continuous digesterANDRITZ AHLSTROM INC·Filed 2000·Granted Aug 28, 2001·12 cites·7 claims
- 0887US6306252B1Heat recovery from spent digester cooking liquorANDRITZ AHLSTROM INC·Filed 1995·Granted Oct 23, 2001·36 cites·8 claims
- 0986US6086712ADOM control in cellulose pulp productionAHLSTROM MACHINERY INC·Filed 1998·Granted Jul 11, 2000·20 cites·43 claims
- 1084US5849150ALow dissolved solids control in pulp productionAHLSTROM MACHINERY INC·Filed 1996·Granted Dec 15, 1998·18 cites·16 claims
- 1184US5246541AEvaporator for liquid solutionsAHLSTROEM OY·Filed 1991·Granted Sep 21, 1993·60 cites·5 claims
- 1279US5380402AReducing pulp mill liquid dischargeKAMYR INC·Filed 1992·Granted Jan 10, 1995·27 cites·22 claims
- 1379US4302281AMethod for producing pulpROSENBLADS PATENTER AB·Filed 1979·Granted Nov 24, 1981·21 cites·4 claims
- 1478US6159337ADissolved organic materials control in cellulose pulp productionANDRITZ AHLSTROM INC·Filed 1999·Granted Dec 12, 2000·13 cites·19 claims
- 1577US6106668AMethod for feeding comminuted fibrous materialAHLSTROM MACHINERY INC·Filed 1998·Granted Aug 22, 2000·22 cites·25 claims
- 1670US5302246AMethod of managing liquid steams in a pulp millKAMYR INC·Filed 1993·Granted Apr 12, 1994·18 cites·15 claims
- 1769US5048200AProcess and apparatus for dehumidifying wet airAHSLTROMFORETAGEN SVENSKA AB·Filed 1990·Granted Sep 17, 1991·24 cites·8 claims
- 1867US5374333AMethod for minimizing pulp mill effluentsKAMYR INC·Filed 1992·Granted Dec 20, 1994·15 cites·38 claims
- 1965US4963231AMethod for evaporation of liquidsAHLSTROEM FOERETAGEN·Filed 1988·Granted Oct 16, 1990·24 cites·9 claims
- 2065US4755258AMethod and apparatus for deactivating spent liquorAHLSTROEM FOERETAGEN·Filed 1986·Granted Jul 5, 1988·25 cites·15 claims
- 2164US4789428AMethod for evaporation of spent liquorAHLSTROEM FOERETAGEN·Filed 1986·Granted Dec 6, 1988·12 cites·5 claims
- 2263US4925527AMethod for the recovery of turpentine and heat in a refiner pulping processAHLSTROEM FOERETAGEN·Filed 1989·Granted May 15, 1990·12 cites·22 claims
- 2361US5518583AZero discharge mill distillation, salt recovery, and water managementAHLSTROEM OY·Filed 1993·Granted May 21, 1996·12 cites·17 claims
- 2461US2015072389A1Process for the stepwise treatment of lignocellulosic material to produce reactive chemical feedstocksAPI IP HOLDINGS LLC·Filed 2014·Application pending·0 cites
- 2560US4930429AApparatus and process for generating steam from wet fuelAHLSTROEM FOERETAGEN·Filed 1989·Granted Jun 5, 1990·17 cites·18 claims
- 2657US2011003352A1process for the stepwise treatment of lignocellulosic material to produce reactive chemical feedstocksAMERICAN PROCESS INC·Filed 2007·Application pending·0 cites
- 2756US4860548AAir conditioning process and apparatus thereforAHLSTROEM FOERETAGEN·Filed 1988·Granted Aug 29, 1989·17 cites·9 claims
- 2854US6217711B1Method of treating condensatesANDRITZ AHLSTROM OY·Filed 1999·Granted Apr 17, 2001·24 cites·8 claims
- 2954US5683550AMethod and apparatus for increasing recovery boiler capacity by withdrawing combustible gas from the furnaceAHLSTROEM RECOVERY INC·Filed 1996·Granted Nov 4, 1997·17 cites·21 claims
- 3051US5326433AMulti-level sulfide content white liquor production and utilization in cellulose pulpingAHLSTROEM RECOVERY INC·Filed 1992·Granted Jul 5, 1994·11 cites·4 claims
- 3150US4975148ACold blow system for batch production of pulpAHLSTROEM FOERETAGEN·Filed 1988·Granted Dec 4, 1990·8 cites·6 claims
- 3249US6261412B1Regenerative heat recovery for high temperature condensate stripping plantsANDRITZ AHLSTROM INC·Filed 1999·Granted Jul 17, 2001·8 cites·12 claims
- 3348US5547543AApparatus for minimizing effluent discharges and recovering chemicals in a pulp millAHLSTROM MACHINERY INC·Filed 1994·Granted Aug 20, 1996·10 cites·14 claims
- 3447US5549788AMinimal effluents discharge pulp mill with chemical recoveryAHLSTROEM OY·Filed 1993·Granted Aug 27, 1996·9 cites·2 claims
- 3547US4864830AAir conditioning process and apparatusAHLSTROEM FOERETAGEN·Filed 1988·Granted Sep 12, 1989·12 cites·12 claims
- 3638US4878441AApparatus and process for generating steam from wet fuelAHLSTROEM FOERETAGEN·Filed 1988·Granted Nov 7, 1989·6 cites·19 claims
- 3737US5259928AApparatus for evaporation of liquid solutionsAHLSTROEM OY·Filed 1991·Granted Nov 9, 1993·7 cites·6 claims
- 3836US4877080AProcess and apparatus for cooling a fluidAHLSTROEM FOERETAGEN·Filed 1988·Granted Oct 31, 1989·8 cites·16 claims
- 3934US4888882AMethod and apparatus for drying a particulate material such as barkRYHAM ROLF·Filed 1987·Granted Dec 26, 1989·6 cites·11 claims
- 4032US5360513ASulphur removal from gases associated with boilers having cascade evaporatorsAHLSTROEM OY·Filed 1992·Granted Nov 1, 1994·2 cites·9 claims
- 4130US5133831AMethod of concentrating black liquor by evaporationAHLSTROEM FOERETAGEN·Filed 1988·Granted Jul 28, 1992·0 cites·9 claims
- 4223US5186726ASuspension deaerating processAHLSTROMFORETAGEN SWENSKA·Filed 1990·Granted Feb 16, 1993·0 cites·6 claims
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