Assignee
KAMYR INC
US150 patents
Top patents by PatentIndex Score
US4436586AMar 13, 1984
Method of producing kraft pulp using an acid prehydrolysis and pre-extraction
KAMYR INC150 citations99
US4612286ASep 16, 1986
Acid hydrolysis of biomass for alcohol production
KAMYR INC149 citations98
US5547012AAug 20, 1996
Dissolved solids control in pulp production
KAMYR INC33 citations96
US5500083AMar 19, 1996
Method of feeding cellulosic material to a digester using a chip bin with one dimensional convergence and side relief
KAMYR INC43 citations96
US5489363AFeb 6, 1996
Pulping with low dissolved solids for improved pulp strength
KAMYR INC35 citations96
US5476572ADec 19, 1995
Chip feeding for a continuous digester
KAMYR INC62 citations96
US5116488AMay 26, 1992
Gas sparged centrifugal device
KAMYR INC65 citations96
US5096543AMar 17, 1992
Carrier gas apparatus for evaporation and condensation
KAMYR INC64 citations96
US4668340AMay 26, 1987
Method of countercurrent acid hydrolysis of comminuted cellulosic fibrous material
KAMYR INC93 citations96
US4721526AJan 26, 1988
Heap leaching with oxygen
KAMYR INC81 citations95
US5338366AAug 16, 1994
Acid pre-hydrolysis reactor system
KAMYR INC93 citations94
US5378321AJan 3, 1995
Varying annular fluidization zone for increased mixing efficiency in a medium consistency mixer
KAMYR INC51 citations93
US5263774ANov 23, 1993
Rotor for increasing mixing efficiency in a medium consistency mixer
KAMYR INC59 citations93
US5472567ADec 5, 1995
Method of chemically reacting a slurry with a gas
KAMYR INC40 citations92
US5454490AOct 3, 1995
Conical insets for chip bin
KAMYR INC27 citations92
US5405497AApr 11, 1995
Method of chemically reacting a liquid with a gas in a vortex
KAMYR INC27 citations92
US5236554AAug 17, 1993
Digester having plural screens with means for controlling liquid injection and withdrawal
KAMYR INC24 citations92
US5236285AAug 17, 1993
High pressure feeder
KAMYR INC28 citations92
US5236286AAug 17, 1993
High pressure feeder split outflow for enhanced feeder efficiency
KAMYR INC25 citations92
US4986881AJan 22, 1991
Method and apparatus for liquid treatment of and liquid extraction on a paper pulp
KAMYR INC37 citations92
US4946556AAug 7, 1990
Method of oxygen delignifying wood pulp with between stage washing
KAMYR INC34 citations92
US4944842AJul 31, 1990
Method for reducing contamination in pulp processing
KAMYR INC30 citations92
US4577974AMar 25, 1986
Medium consistency mixer rotor and stator construction
KAMYR INC27 citations92
US4557905ADec 10, 1985
Leaching and washing a flocculated slurry having a fiber content
KAMYR INC40 citations92
US4391468AJul 5, 1983
Method and apparatus for recovering mineral nodules from the ocean floor
KAMYR INC39 citations92
US4259150AMar 31, 1981
Plural stage mixing and thickening oxygen bleaching process
KAMYR INC35 citations92
US4182177AJan 8, 1980
Sound emission level detection
KAMYR INC46 citations92
US4123318AOct 31, 1978
Three-vessel treatment system
KAMYR INC31 citations92
US4071399AJan 31, 1978
Apparatus and method for the displacement impregnation of cellulosic chips material
KAMYR INC55 citations92
US4017270AApr 12, 1977
Coal gasification process with improved procedures for continuously feeding lump coal under pressure
KAMYR INC54 citations92
US3982789ASep 28, 1976
Process and apparatus for conveying large particle mined coal, oil shale, ore, etc. from underground mines or from strip mines via a pipeline
KAMYR INC41 citations92
US3950147AApr 13, 1976
Process for feeding coal to a fluidized bed or suspended particle pressurized processing chamber and apparatus for carrying out the same
KAMYR INC33 citations92
US5575890ANov 19, 1996
Method for selectively increasing the sulfide ion concentration and sulfidity of kraft cooking liquor during kraft cooking of wood
KAMYR INC22 citations91
US5552125ASep 3, 1996
Dielectric coating for ozone generator electrodes
KAMYR INC23 citations91
US4816234AMar 28, 1989
Utilization of oxygen in leaching and/or recovery procedures employing carbon
KAMYR INC38 citations91
US5380402AJan 10, 1995
Reducing pulp mill liquid discharge
KAMYR INC27 citations90
US4637779AJan 20, 1987
Two stage medium consistency pulp pumping
KAMYR INC38 citations90
US5509999AApr 23, 1996
Treatment of bleach plant effluents
KAMYR INC22 citations89
US5401362AMar 28, 1995
Control of metals and dissolved organics in the bleach plant
KAMYR INC33 citations89
US5131980AJul 21, 1992
Hydrocyclone removal of sticky contaminants during paper recycling
KAMYR INC44 citations89
US5069751ADec 3, 1991
Hydrocyclone deinking of paper during recycling
KAMYR INC37 citations89
US4172037AOct 23, 1979
Continuous process diffuser
KAMYR INC31 citations88
US5133837AJul 28, 1992
Dimpled plate multi-stage flash evaporator
KAMYR INC38 citations86
US4897157AJan 30, 1990
Make-up liquor and black liquor evaporating processing during pulp production
KAMYR INC23 citations86
US4551198ANov 5, 1985
Method of flashing black liquor
KAMYR INC31 citations85
US5213686AMay 25, 1993
Compression feeder
KAMYR INC25 citations84
US4756797AJul 12, 1988
Multiple effect evaporator with an evaporative condenser as a liquid evaporation effect
KAMYR INC31 citations83
US5364505ANov 15, 1994
Pressurized ozone pulp delignification reactor and a compressor for supplying ozone to the reactor
KAMYR INC17 citations82
US5266160ANov 30, 1993
Method of an apparatus for treating pulp
KAMYR INC14 citations82
US4902381AFeb 20, 1990
Method of bleaching pulp with ozone-chlorine mixtures
KAMYR INC19 citations82
Showing the top 50 of 150 patents by PatentIndex Score.