Assignee
KAMYR INC
US·150 granted patents·3,335 citations·filing 1973–1994
Top patents by PatentIndex Score
150 records- 0199US4436586AMethod of producing kraft pulp using an acid prehydrolysis and pre-extractionKAMYR INC·Filed 1982·Granted Mar 13, 1984·150 cites·20 claims
- 0298US5476572AChip feeding for a continuous digesterKAMYR INC·Filed 1994·Granted Dec 19, 1995·62 cites·19 claims
- 0398US4612286AAcid hydrolysis of biomass for alcohol productionKAMYR INC·Filed 1984·Granted Sep 16, 1986·149 cites·20 claims
- 0497US4668340AMethod of countercurrent acid hydrolysis of comminuted cellulosic fibrous materialKAMYR INC·Filed 1984·Granted May 26, 1987·93 cites·10 claims
- 0596US4721526AHeap leaching with oxygenKAMYR INC·Filed 1986·Granted Jan 26, 1988·81 cites·19 claims
- 0695US4071399AApparatus and method for the displacement impregnation of cellulosic chips materialKAMYR INC·Filed 1976·Granted Jan 31, 1978·55 cites·15 claims
- 0794US5500083AMethod of feeding cellulosic material to a digester using a chip bin with one dimensional convergence and side reliefKAMYR INC·Filed 1994·Granted Mar 19, 1996·43 cites·16 claims
- 0894US5489363APulping with low dissolved solids for improved pulp strengthKAMYR INC·Filed 1993·Granted Feb 6, 1996·35 cites·41 claims
- 0994US4017270ACoal gasification process with improved procedures for continuously feeding lump coal under pressureKAMYR INC·Filed 1975·Granted Apr 12, 1977·54 cites·12 claims
- 1093US5547012ADissolved solids control in pulp productionKAMYR INC·Filed 1993·Granted Aug 20, 1996·33 cites·31 claims
- 1193US4557905ALeaching and washing a flocculated slurry having a fiber contentKAMYR INC·Filed 1984·Granted Dec 10, 1985·40 cites·21 claims
- 1293US3982789AProcess and apparatus for conveying large particle mined coal, oil shale, ore, etc. from underground mines or from strip mines via a pipelineKAMYR INC·Filed 1974·Granted Sep 28, 1976·41 cites·4 claims
- 1391US4816234AUtilization of oxygen in leaching and/or recovery procedures employing carbonKAMYR INC·Filed 1987·Granted Mar 28, 1989·38 cites·20 claims
- 1491US4259150APlural stage mixing and thickening oxygen bleaching processKAMYR INC·Filed 1979·Granted Mar 31, 1981·35 cites·3 claims
- 1590US4391468AMethod and apparatus for recovering mineral nodules from the ocean floorKAMYR INC·Filed 1979·Granted Jul 5, 1983·39 cites·19 claims
- 1689US5338366AAcid pre-hydrolysis reactor systemKAMYR INC·Filed 1993·Granted Aug 16, 1994·93 cites·29 claims
- 1789US4986881AMethod and apparatus for liquid treatment of and liquid extraction on a paper pulpKAMYR INC·Filed 1989·Granted Jan 22, 1991·37 cites·20 claims
- 1889US4946556AMethod of oxygen delignifying wood pulp with between stage washingKAMYR INC·Filed 1989·Granted Aug 7, 1990·34 cites·20 claims
- 1989US4182177ASound emission level detectionKAMYR INC·Filed 1978·Granted Jan 8, 1980·46 cites·27 claims
- 2089US4123318AThree-vessel treatment systemKAMYR INC·Filed 1976·Granted Oct 31, 1978·31 cites·4 claims
- 2188US5131980AHydrocyclone removal of sticky contaminants during paper recyclingKAMYR INC·Filed 1990·Granted Jul 21, 1992·44 cites·19 claims
- 2288US5116488AGas sparged centrifugal deviceKAMYR INC·Filed 1990·Granted May 26, 1992·65 cites·15 claims
- 2387US4220498AOxygen reactor systems pulp reject treatmentKAMYR INC·Filed 1978·Granted Sep 2, 1980·27 cites·15 claims
- 2487US3950146AContinuous process for energy conserving cooperative coal feeding and ash removal of continuous, pressurized coal gasifiers and the like, and apparatus for carrying out the sameKAMYR INC·Filed 1974·Granted Apr 13, 1976·28 cites·24 claims
- 2585US4944842AMethod for reducing contamination in pulp processingKAMYR INC·Filed 1987·Granted Jul 31, 1990·30 cites·20 claims
- 2685US4124440AChip bin steam distributor with a vibrating dischargeKAMYR INC·Filed 1977·Granted Nov 7, 1978·23 cites·10 claims
- 2784US5263774ARotor for increasing mixing efficiency in a medium consistency mixerKAMYR INC·Filed 1992·Granted Nov 23, 1993·59 cites·18 claims
- 2884US5096543ACarrier gas apparatus for evaporation and condensationKAMYR INC·Filed 1990·Granted Mar 17, 1992·64 cites·12 claims
- 2983US4721231AChips bin blockage preventingKAMYR INC·Filed 1980·Granted Jan 26, 1988·24 cites·12 claims
- 3082US4096027ASystem for presteaming wood chips at or near atmospheric pressure with minimum displacement of airKAMYR INC·Filed 1976·Granted Jun 20, 1978·20 cites·8 claims
- 3180US5378321AVarying annular fluidization zone for increased mixing efficiency in a medium consistency mixerKAMYR INC·Filed 1993·Granted Jan 3, 1995·51 cites·7 claims
- 3280US3950147AProcess for feeding coal to a fluidized bed or suspended particle pressurized processing chamber and apparatus for carrying out the sameKAMYR INC·Filed 1974·Granted Apr 13, 1976·33 cites·25 claims
- 3379US5380402AReducing pulp mill liquid dischargeKAMYR INC·Filed 1992·Granted Jan 10, 1995·27 cites·22 claims
- 3478US5213686ACompression feederKAMYR INC·Filed 1991·Granted May 25, 1993·25 cites·12 claims
- 3578US4637779ATwo stage medium consistency pulp pumpingKAMYR INC·Filed 1985·Granted Jan 20, 1987·38 cites·21 claims
- 3678US4161421AMethod and apparatus for continuous oxygen bleaching of cellulosic pulpKAMYR INC·Filed 1977·Granted Jul 17, 1979·17 cites·22 claims
- 3777US5472567AMethod of chemically reacting a slurry with a gasKAMYR INC·Filed 1994·Granted Dec 5, 1995·40 cites·20 claims
- 3877US5236554ADigester having plural screens with means for controlling liquid injection and withdrawalKAMYR INC·Filed 1991·Granted Aug 17, 1993·24 cites·10 claims
- 3977US5236286AHigh pressure feeder split outflow for enhanced feeder efficiencyKAMYR INC·Filed 1992·Granted Aug 17, 1993·25 cites·20 claims
- 4076US4902381AMethod of bleaching pulp with ozone-chlorine mixturesKAMYR INC·Filed 1988·Granted Feb 20, 1990·19 cites·10 claims
- 4176US4547264AMethod of withdrawing liquid from a pair of vertically spaced annular screensKAMYR INC·Filed 1981·Granted Oct 15, 1985·17 cites·4 claims
- 4276US4415296AMaterials transfer system and methodologyKAMYR INC·Filed 1981·Granted Nov 15, 1983·24 cites·25 claims
- 4375US5069751AHydrocyclone deinking of paper during recyclingKAMYR INC·Filed 1990·Granted Dec 3, 1991·37 cites·16 claims
- 4475US4193839AFlow control method and apparatus for continuous wood chip digester screenless liquor extractorKAMYR INC·Filed 1976·Granted Mar 18, 1980·15 cites·15 claims
- 4575US4177105AApparatus for delignifying and bleaching cellulose pulpKAMYR INC·Filed 1976·Granted Dec 4, 1979·15 cites·1 claims
- 4674US5575890AMethod for selectively increasing the sulfide ion concentration and sulfidity of kraft cooking liquor during kraft cooking of woodKAMYR INC·Filed 1994·Granted Nov 19, 1996·22 cites·14 claims
- 4774US4927312AChip gates with air lockKAMYR INC·Filed 1988·Granted May 22, 1990·18 cites·12 claims
- 4874US4897157AMake-up liquor and black liquor evaporating processing during pulp productionKAMYR INC·Filed 1988·Granted Jan 30, 1990·23 cites·11 claims
- 4974US4731160ADrainage characteristics of mechanical pulpKAMYR INC·Filed 1986·Granted Mar 15, 1988·23 cites·7 claims
- 5073US5405497AMethod of chemically reacting a liquid with a gas in a vortexKAMYR INC·Filed 1990·Granted Apr 11, 1995·27 cites·15 claims
Showing the top 50 of 150 patent records by PatentIndex Score.
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