Assignee
SVENSKA TRAEFORSKNINGSINST
SE·43 granted patents·745 citations·filing 1973–2000
Top patents by PatentIndex Score
43 records- 0187US4318180AMethod and apparatus for indicating the size distribution of particles in a flowing mediumSVENSKA TRAEFORSKNINGSINST·Filed 1979·Granted Mar 2, 1982·57 cites·32 claims
- 0284US4514257AMethod of measuring fines in pulp suspensionsSVENSKA TRAEFORSKNINGSINST·Filed 1982·Granted Apr 30, 1985·53 cites·10 claims
- 0381US4529309AMethod for determining the average radius and/or the average length of particles carried by a flowing mediumSVENSKA TRAEFORSKNINGSINST·Filed 1982·Granted Jul 16, 1985·46 cites·12 claims
- 0480US4420256ADust measurementSVENSKA TRAEFORSKNINGSINST·Filed 1980·Granted Dec 13, 1983·44 cites·10 claims
- 0580US3962033AMethod for producing cellulose pulpSVENSKA TRAEFORSKNINGSINST·Filed 1974·Granted Jun 8, 1976·42 cites·14 claims
- 0673US4109520AMethod and means for measuring web tension in paper or foilsSVENSKA TRAEFORSKNINGSINST·Filed 1977·Granted Aug 29, 1978·26 cites·8 claims
- 0771US4824523AMethod of making paper with high filler contentSVENSKA TRAEFORSKNINGSINST·Filed 1987·Granted Apr 25, 1989·31 cites·9 claims
- 0869US5007985AMethod of reducing the energy consumption at the refining of cellulose containing materialSVENSKA TRAEFORSKNINGSINST·Filed 1989·Granted Apr 16, 1991·19 cites·1 claims
- 0966US4110044AMethod for determination of concentrationSVENSKA TRAEFORSKNINGSINST·Filed 1976·Granted Aug 29, 1978·21 cites·12 claims
- 1065US6757065B1Method of determining an illuminated surfaceSVENSKA TRAEFORSKNINGSINST·Filed 2000·Granted Jun 29, 2004·14 cites·22 claims
- 1164US4874467AMethod of controlling cross profile of properties of paper webSVENSKA TRAEFORSKNINGSINST·Filed 1987·Granted Oct 17, 1989·16 cites·9 claims
- 1263US4624819AMethod for producing layers of dry fibres on a forming surfaceSVENSKA TRAEFORSKNINGSINST·Filed 1984·Granted Nov 25, 1986·12 cites·18 claims
- 1363US4250935AMethod and an apparatus for cross-cutting treesSVENSKA TRAEFORSKNINGSINST·Filed 1978·Granted Feb 17, 1981·24 cites·20 claims
- 1463US4078863AMeasuring the concentration of substances suspended in a liquidSVENSKA TRAEFORSKNINGSINST·Filed 1975·Granted Mar 14, 1978·18 cites·7 claims
- 1562US5582684AMethod of determining degree of reduction in a sulfate liquor using IR and UV spectroscopySVENSKA TRAEFORSKNINGSINST·Filed 1992·Granted Dec 10, 1996·34 cites·6 claims
- 1661US4255870AMethod of hot-air dryingSVENSKA TRAEFORSKNINGSINST·Filed 1979·Granted Mar 17, 1981·20 cites·1 claims
- 1760US4448818AMethod and apparatus for applying liquid to a moving surfaceSVENSKA TRAEFORSKNINGSINST·Filed 1981·Granted May 15, 1984·13 cites·8 claims
- 1859US5274244AMethod and apparatus for detecting bark and for determining the degree of barking on wood and chipsSVENSKA TRAEFORSKNINGSINST·Filed 1990·Granted Dec 28, 1993·28 cites·17 claims
- 1959US4113542AMethod of joining wood productsSVENSKA TRAEFORSKNINGSINST·Filed 1977·Granted Sep 12, 1978·14 cites·10 claims
- 2058US4690634AMethod of measuring dry substance in flue gasesSVENSKA TRAEFORSKNINGSINST·Filed 1986·Granted Sep 1, 1987·22 cites·20 claims
- 2158US3937647AMethod of increasing cellulosic pulp yields in an alkaline digestion processSVENSKA TRAEFORSKNINGSINST·Filed 1973·Granted Feb 10, 1976·12 cites·6 claims
- 2254US3997268ADevice for determination of layer thickness, or alternatively, measurement of surface topographySVENSKA TRAEFORSKNINGSINST·Filed 1975·Granted Dec 14, 1976·12 cites·15 claims
- 2353US4235102AMethod and apparatus for measuring the ratio between web tension and substanceSVENSKA TRAEFORSKNINGSINST·Filed 1979·Granted Nov 25, 1980·13 cites·10 claims
- 2453US4113555AHard board or medium density board, process for production thereof and means for practicizing the processSVENSKA TRAEFORSKNINGSINST·Filed 1977·Granted Sep 12, 1978·10 cites·20 claims
- 2551US4939929AMeasurement of the properties of a web in paper productionSVENSKA TRAEFORSKNINGSINST·Filed 1988·Granted Jul 10, 1990·16 cites·6 claims
- 2650US4655093AWeb tension measuring method and deviceSVENSKA TRAEFORSKNINGSINST·Filed 1985·Granted Apr 7, 1987·14 cites·6 claims
- 2748US5361638AArrangement for measuring mechanical properties of a foil material through use of an excitation unit that includes a laserSVENSKA TRAEFORSKNINGSINST·Filed 1993·Granted Nov 8, 1994·20 cites·20 claims
- 2846US4289663AMethod of producing synthetic resin from waste productsSVENSKA TRAEFORSKNINGSINST·Filed 1979·Granted Sep 15, 1981·4 cites·6 claims
- 2944US4911790APaper productionSVENSKA TRAEFORSKNINGSINST·Filed 1988·Granted Mar 27, 1990·13 cites·6 claims
- 3041US4683841AControl of a black liquor recovery boilerSVENSKA TRAEFORSKNINGSINST·Filed 1986·Granted Aug 4, 1987·11 cites·16 claims
- 3138US4786365AProcess of making cellulose pulp with a sulphite cooking liquor containing sulphide and a quinone or hydroquinone compoundSVENSKA TRAEFORSKNINGSINST·Filed 1988·Granted Nov 22, 1988·7 cites·12 claims
- 3237US6147750ADetermination of gloss qualitySVENSKA TRAEFORSKNINGSINST·Filed 1997·Granted Nov 14, 2000·9 cites·15 claims
- 3337US5331405AMethod and apparatus for measuring fibre flexibilitySVENSKA TRAEFORSKNINGSINST·Filed 1991·Granted Jul 19, 1994·10 cites·17 claims
- 3433US5908535AMethod for determination of filler content in paperSVENSKA TRAEFORSKNINGSINST·Filed 1995·Granted Jun 1, 1999·5 cites·8 claims
- 3532US4935366AMethod of obtaining cellulase deficient strains of white-rot fungiSVENSKA TRAEFORSKNINGSINST·Filed 1985·Granted Jun 19, 1990·4 cites·5 claims
- 3628US4346007AMethod at screening apparatus for cleaning the apertures in a screen plate and device for carrying out the methodSVENSKA TRAEFORSKNINGSINST·Filed 1980·Granted Aug 24, 1982·7 cites·14 claims
- 3726US4889592AProcess and apparatus for control in burning and slaking of lime and causticizingSVENSKA TRAEFORSKNINGSINST·Filed 1987·Granted Dec 26, 1989·3 cites·21 claims
- 3824US6615509B1Apparatus and a process for drying a paper webSVENSKA TRAEFORSKNINGSINST·Filed 1999·Granted Sep 9, 2003·0 cites·10 claims
- 3924US4806014AMethod for measuring size distributionSVENSKA TRAEFORSKNINGSINST·Filed 1987·Granted Feb 21, 1989·7 cites·1 claims
- 4024US4689988ADevice for separately measuring particles in a suspensionSVENSKA TRAEFORSKNINGSINST·Filed 1985·Granted Sep 1, 1987·7 cites·9 claims
- 4124US3955746APackage made from paper, cardboard, cellular cardboard and like materialsSVENSKA TRAEFORSKNINGSINST·Filed 1973·Granted May 11, 1976·7 cites·7 claims
- 4221US4775307AApparatus for producing layers of dry fibres on a forming surfaceSVENSKA TRAEFORSKNINGSINST·Filed 1986·Granted Oct 4, 1988·0 cites·7 claims
- 439US6003572AProcess for making wood chipsSVENSKA TRAEFORSKNINGSINST·Filed 1996·Granted Dec 21, 1999·0 cites·21 claims
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