Assignee
PULP PAPER RES INST
CA·69 granted patents·1 pending application·2,155 citations·filing 1974–2004
Top patents by PatentIndex Score
70 records- 0193US7074845B2Swollen starch-latex compositions for use in papermakingPULP PAPER RES INST·Filed 2003·Granted Jul 11, 2006·43 cites·15 claims
- 0293US5082526AProcess of producing kraft pulping liquor by the oxidation of white liquor in the presence of lime mudPULP PAPER RES INST·Filed 1990·Granted Jan 21, 1992·61 cites·13 claims
- 0391US5629055ASolidified liquid crystals of cellulose with optically variable propertiesPULP PAPER RES INST·Filed 1994·Granted May 13, 1997·283 cites·35 claims
- 0491US4510020ALumen-loaded paper pulp, its production and usePULP PAPER RES INST·Filed 1980·Granted Apr 9, 1985·122 cites·20 claims
- 0588US5691193ANon-chlorine bleaching of kraft pulpPULP PAPER RES INST·Filed 1994·Granted Nov 25, 1997·49 cites·4 claims
- 0688US4008161ATreatment of pulp mill effluentsPULP PAPER RES INST·Filed 1974·Granted Feb 15, 1977·41 cites·19 claims
- 0787US5838561AAutomatic control loop monitoring and diagnosticsPULP PAPER RES INST·Filed 1996·Granted Nov 17, 1998·141 cites·21 claims
- 0887US5311290AImaging apparatus and method of fiber analysisPULP PAPER RES INST·Filed 1992·Granted May 10, 1994·101 cites·25 claims
- 0987US4233600AMethod and system for detecting plate clashing in disc refinersPULP PAPER RES INST·Filed 1978·Granted Nov 11, 1980·31 cites·10 claims
- 1084US6455661B1Papermaking additives and mechanical pulp with primary amino groupsPULP PAPER RES INST·Filed 2001·Granted Sep 24, 2002·27 cites·24 claims
- 1184US5567293AElectromembrane processes for the treatment of kraft mill electrostatic precipitator catchPULP PAPER RES INST·Filed 1994·Granted Oct 22, 1996·63 cites·30 claims
- 1284US5522958ATwo-stage kraft cookingPULP PAPER RES INST·Filed 1994·Granted Jun 4, 1996·32 cites·14 claims
- 1383US5061343ARecovery of NaOH and other values from spent liquors and bleach plant effluentsPULP PAPER RES INST·Filed 1990·Granted Oct 29, 1991·41 cites·18 claims
- 1483US4431479AProcess for improving and retaining pulp propertiesPULP PAPER RES INST·Filed 1982·Granted Feb 14, 1984·47 cites·19 claims
- 1582US5725737AApparatus for the detection of holes and plugged spotsPULP PAPER RES INST·Filed 1996·Granted Mar 10, 1998·50 cites·7 claims
- 1682US5378320AControl of recausticizing system operation by IR spectroscopysPULP PAPER RES INST·Filed 1993·Granted Jan 3, 1995·25 cites·6 claims
- 1780US6660128B1Oxidase process for pulpPULP PAPER RES INST·Filed 2000·Granted Dec 9, 2003·19 cites·19 claims
- 1880US6336602B1Low speed low intensity chip refiningPULP PAPER RES INST·Filed 1999·Granted Jan 8, 2002·35 cites·51 claims
- 1980US5006211AElectrodialylic water splitting process for the treatment of aqueous electrolytesPULP PAPER RES INST·Filed 1989·Granted Apr 9, 1991·24 cites·34 claims
- 2079US6235150B1Method for producing pulp and paper with calcium carbonate fillerPULP PAPER RES INST·Filed 1999·Granted May 22, 2001·63 cites·26 claims
- 2179US4391671AMethod of producing lime in a rotary kilnPULP PAPER RES INST·Filed 1981·Granted Jul 5, 1983·33 cites·5 claims
- 2278US6279495B1Method and apparatus for optimizing the combustion air system in a recovery boilerPULP PAPER RES INST·Filed 2000·Granted Aug 28, 2001·33 cites·32 claims
- 2378US5968326AComposite inorganic-polymer thin film cation-selective membrane, method of fabricating same and applicationsPULP PAPER RES INST·Filed 1998·Granted Oct 19, 1999·37 cites·20 claims
- 2477US5616214ADetermination of sodium sulfide and sulfidity in green liquors and smelt solutionsPULP PAPER RES INST·Filed 1995·Granted Apr 1, 1997·52 cites·20 claims
- 2577US5282931ADetermination and control of effective alkali in kraft liquors by IR spectroscopyPULP PAPER RES INST·Filed 1992·Granted Feb 1, 1994·21 cites·12 claims
- 2677US5127168AMethod for manufacture of smooth and glossy papers and apparatusPULP PAPER RES INST·Filed 1991·Granted Jul 7, 1992·30 cites·12 claims
- 2777US4313790AAdditives for increased retention and pitch control in paper manufacturePULP PAPER RES INST·Filed 1980·Granted Feb 2, 1982·43 cites·15 claims
- 2876US4804440AMultistage brightening of high yield and ultra high-yield wood pulpsPULP PAPER RES INST·Filed 1988·Granted Feb 14, 1989·25 cites·8 claims
- 2976US4248663APulping with an alkaline liquor containing a cyclic keto compound and an amino compoundPULP PAPER RES INST·Filed 1978·Granted Feb 3, 1981·25 cites·10 claims
- 3075US5232555AWet cellulosic web transfer method using air doctor bladePULP PAPER RES INST·Filed 1992·Granted Aug 3, 1993·35 cites·19 claims
- 3172US6551451B2Method for determining liquid content in chemical pulps using ramen spectrometryPULP PAPER RES INST·Filed 2000·Granted Apr 22, 2003·14 cites·21 claims
- 3272US4830708ADirect biological bleaching of hardwood kraft pulp with the fungus Coriolus versicolorPULP PAPER RES INST·Filed 1987·Granted May 16, 1989·22 cites·17 claims
- 3370US5976375AProcess for reducing production of biomass during activated sludge treatment of pulp and paper mill effluentsPULP PAPER RES INST·Filed 1999·Granted Nov 2, 1999·43 cites·12 claims
- 3469US5451456ALatex of poly-β-hydroxyalkanoates for treating fiber constructs and coating paperPULP PAPER RES INST·Filed 1990·Granted Sep 19, 1995·27 cites·24 claims
- 3568US6998015B2Method for reducing alkaline darkening of mechanical pulp containing a calcium carbonate fillerPULP PAPER RES INST·Filed 2001·Granted Feb 14, 2006·7 cites·15 claims
- 3668US6806955B2Method and apparatus for measuring fiber propertiesPULP PAPER RES INST·Filed 2001·Granted Oct 19, 2004·13 cites·11 claims
- 3767US6670524B1Method for predicting fiber length using QTL's and molecular markersPULP PAPER RES INST·Filed 2000·Granted Dec 30, 2003·3 cites·6 claims
- 3867US4266918AApparatus for electrostatic fibre spinning from polymeric fluidsPULP PAPER RES INST·Filed 1978·Granted May 12, 1981·19 cites·17 claims
- 3966US5792441AFixed-resin bed technologies for the treatment of the chlorine dioxide generator effluent and feeds streamPULP PAPER RES INST·Filed 1996·Granted Aug 11, 1998·27 cites·20 claims
- 4066US5667641AApplication of thermal barrier coatings to paper machine drying cylinders to prevent paper edge overdryingPULP PAPER RES INST·Filed 1995·Granted Sep 16, 1997·19 cites·33 claims
- 4165US6468396B2Dendrimeric polymers for the production of paper and boardPULP PAPER RES INST·Filed 2001·Granted Oct 22, 2002·8 cites·30 claims
- 4263US5366593ABleaching of lignocellulosic material with in-situ-generated dioxiranePULP PAPER RES INST·Filed 1992·Granted Nov 22, 1994·15 cites·35 claims
- 4363US4880499AMethod for measurement of the permeability to waterPULP PAPER RES INST·Filed 1987·Granted Nov 14, 1989·23 cites·4 claims
- 4462US5364502AControl of recovery boiler operation by IR spectroscopyPULP PAPER RES INST·Filed 1993·Granted Nov 15, 1994·12 cites·7 claims
- 4560US6840470B2Refiner force sensorPULP PAPER RES INST·Filed 2001·Granted Jan 11, 2005·7 cites·37 claims
- 4660US4788779AMethod and apparatus for the rapid consolidation and/or drying of moist porous websPULP PAPER RES INST·Filed 1987·Granted Dec 6, 1988·24 cites·5 claims
- 4760US3981453AMethod for segregating bark and foliage from wood chips and twigsPULP PAPER RES INST·Filed 1974·Granted Sep 21, 1976·11 cites·17 claims
- 4859US6235154B1Chlorine dioxide bleaching in the presence of an aldehydePULP PAPER RES INST·Filed 1999·Granted May 22, 2001·15 cites·25 claims
- 4957US6153052APulping processPULP PAPER RES INST·Filed 1999·Granted Nov 28, 2000·11 cites·20 claims
- 5056US5433827AMethod for the deacidification of papers and booksPULP PAPER RES INST·Filed 1993·Granted Jul 18, 1995·21 cites·25 claims
Showing the top 50 of 70 patent records by PatentIndex Score.
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