Assignee
BOLIDEN AB
SE102 patents
Top patents by PatentIndex Score
US4566975AJan 28, 1986
Method for purifying aqueous solutions
BOLIDEN AB79 citations92
US4233274ANov 11, 1980
Method of extracting and recovering mercury from gases
BOLIDEN AB144 citations92
US4087274AMay 2, 1978
Method of producing a partially reduced product from finely-divided metal sulphides
BOLIDEN AB39 citations87
US3948640AApr 6, 1976
Method of carrying out heat-requiring chemical and/or physical processes
BOLIDEN AB36 citations87
US4708522ANov 24, 1987
Storage complex for storing radioactive material in rock formation
BOLIDEN AB33 citations86
US4443417AApr 17, 1984
Method for separating gaseous, elementary mercury from a gas
BOLIDEN AB31 citations86
US4345990AAug 24, 1982
Method for recovering oil and/or gas from carbonaceous materials
BOLIDEN AB31 citations86
US4378340AMar 29, 1983
Method of purifying phosphoric acid of heavy metals
BOLIDEN AB29 citations84
US4640751AFeb 3, 1987
Method for the purification of gases containing mercury and simultaneous recovery of the mercury in metallic form
BOLIDEN AB30 citations83
US4182780AJan 8, 1980
Process and an apparatus for alkali-treatment of lignocellulosic material
BOLIDEN AB45 citations83
US4138231AFeb 6, 1979
Method of wet-cleaning gases containing sulfur dioxide, halogens and arsenic from pyrometallurgical treatment of sulphidic materials
BOLIDEN AB31 citations83
US4048341ASep 13, 1977
Process and an apparatus for increasing the feed value of lignocellulosic materials
BOLIDEN AB47 citations82
US4921613AMay 1, 1990
Method for purifying resin-containing waste liquor in the manufacture of cellulose pulps
BOLIDEN AB26 citations81
US4856716AAug 15, 1989
Gyratory crusher control
BOLIDEN AB33 citations81
US4663055AMay 5, 1987
Method and apparatus for distributing water purifying chemicals
BOLIDEN AB45 citations81
US4492924AJan 8, 1985
Method and apparatus for ore prospecting utilizing an aerial transmitter and aerial receiver
BOLIDEN AB35 citations81
US4176042ANov 27, 1979
Method of treating shales
BOLIDEN AB38 citations81
US4489046ADec 18, 1984
Method for working-up arsenic-containing waste
BOLIDEN AB21 citations79
US4571260AFeb 18, 1986
Method for recovering the metal values from materials containing tin and/or zinc
BOLIDEN AB25 citations78
US4571261AFeb 18, 1986
Method for recovering lead from waste lead products
BOLIDEN AB23 citations77
US3948645AApr 6, 1976
Method of carrying out heat-requiring chemical and/or physical processes in a fluidized bed
BOLIDEN AB24 citations77
US4069041AJan 17, 1978
Method of recovering non-ferrous metals from sulphidic materials
BOLIDEN AB23 citations75
US3942727AMar 9, 1976
Grinding plant
BOLIDEN AB22 citations75
US4708523ANov 24, 1987
Rock cavity
BOLIDEN AB20 citations74
US4585477AApr 29, 1986
Method for separating and recovering nickel and copper from complex materials
BOLIDEN AB21 citations74
US4017308AApr 12, 1977
Smelting and reduction of oxidic and sulphated lead material
BOLIDEN AB20 citations72
US4144055AMar 13, 1979
Method of producing blister copper
BOLIDEN AB17 citations71
US3984229AOct 5, 1976
Method for producing coarse powder, hardened iron oxide material from finely divided raw material substantially consisting of hematite and/or magnetite
BOLIDEN AB17 citations71
US4725164AFeb 16, 1988
Method of excavating a storage complex in rock for storing radioactive waste
BOLIDEN AB13 citations70
US4515631AMay 7, 1985
Method for producing blister copper
BOLIDEN AB8 citations70
US4846582AJul 11, 1989
Polymer dissolver
BOLIDEN AB19 citations69
US4705562ANov 10, 1987
Method for working-up waste products containing valuable metals
BOLIDEN AB9 citations69
US4503017AMar 5, 1985
Method of purifying waste aqueous solutions from heavy metals
BOLIDEN AB19 citations69
US3932149AJan 13, 1976
Method for the purification of sulphuric acid containing mercury
BOLIDEN AB13 citations69
US4587847AMay 13, 1986
Method for indicating concealed deposits
BOLIDEN AB18 citations68
US4560540ADec 24, 1985
Method for recovering useful products from waste products obtained when manufacturing aluminium fluoride
BOLIDEN AB11 citations68
US4536384AAug 20, 1985
Stable solutions of basic aluminium sulphate containing polynucleate aluminium hydroxide sulphate complexes
BOLIDEN AB14 citations68
US4512798AApr 23, 1985
Method for producing lead from sulphidic and oxidic and/or sulphatic lead raw materials
BOLIDEN AB9 citations68
US4468558AAug 28, 1984
Method and apparatus for measuring radon beneath and above the level of the ground
BOLIDEN AB11 citations68
US4426575AJan 17, 1984
Method and apparatus for measuring radon in the ground
BOLIDEN AB7 citations68
US4415360ANov 15, 1983
Method for working-up metal-containing waste products
BOLIDEN AB18 citations68
US4402851ASep 6, 1983
Pumpable composition for water-purifying purpose containing iron (II) sulphate, and a method for producing the same
BOLIDEN AB11 citations68
US4388110AJun 14, 1983
Method for recovering the metal content of complex sulphidic metal raw materials
BOLIDEN AB8 citations68
US3976594AAug 24, 1976
Preservative for wood and other organic material subject to biological deterioration and containing amine-forming metals, polyphosphate and chlorinating phenols
BOLIDEN AB15 citations68
US4652181AMar 24, 1987
Storage complex for storing radioactive material in rock formations
BOLIDEN AB11 citations67
US4612171ASep 16, 1986
Method for recovering metal values from materials containing copper and/or precious metals
BOLIDEN AB12 citations67
US4008075AFeb 15, 1977
Autogenous smelting of lead in a top blown rotary converter
BOLIDEN AB10 citations67
US3985529AOct 12, 1976
Method for the production of liquid sulphur dioxide
BOLIDEN AB11 citations67
US4613365ASep 23, 1986
Method for recovering precious metals
BOLIDEN AB9 citations66
US4520003AMay 28, 1985
Method of manufacturing sulphur-trioxide for the production of sulphuric acid
BOLIDEN AB11 citations66
Showing the top 50 of 102 patents by PatentIndex Score.