Assignee
SKF STEEL ENG AB
SE·44 granted patents·683 citations·filing 1980–1988
Top patents by PatentIndex Score
44 records- 0195US4508040AMethod and plant for conversion of waste material to stable final productsSKF STEEL ENG AB·Filed 1982·Granted Apr 2, 1985·94 cites·16 claims
- 0285US4528231ASlip and wear resistant flooring and compositions and a method for producing sameSKF STEEL ENG AB·Filed 1983·Granted Jul 9, 1985·44 cites·6 claims
- 0383US4439410AMethod of manufacturing silicon from powdered material containing silicaSKF STEEL ENG AB·Filed 1982·Granted Mar 27, 1984·36 cites·9 claims
- 0479US4615285AMethod of destroying hazardous wastesSKF STEEL ENG AB·Filed 1985·Granted Oct 7, 1986·45 cites·9 claims
- 0578US4718362AWaste destructionSKF STEEL ENG AB·Filed 1986·Granted Jan 12, 1988·42 cites·19 claims
- 0677US4488905AMethod of recovering volatile metals from material containing metal oxidesSKF STEEL ENG AB·Filed 1983·Granted Dec 18, 1984·17 cites·9 claims
- 0777US4466807AManufacture of a gas containing monoxide and hydrogen gas from a starting material containing carbon and/or hydrocarbonSKF STEEL ENG AB·Filed 1981·Granted Aug 21, 1984·29 cites·7 claims
- 0875US4601752AMethod of manufacturing metals and/or generating slagSKF STEEL ENG AB·Filed 1985·Granted Jul 22, 1986·21 cites·7 claims
- 0974US4543470AMeans for electrically heating gasesSKF STEEL ENG AB·Filed 1983·Granted Sep 24, 1985·32 cites·20 claims
- 1073US4635573AMethod for destroying refuseSKF STEEL ENG AB·Filed 1985·Granted Jan 13, 1987·28 cites·11 claims
- 1173US4497609AMethod and device for continuous supply of lumps of material to a shaftSKF STEEL ENG AB·Filed 1981·Granted Feb 5, 1985·12 cites·6 claims
- 1271US4611332ATransferred electric arcSKF STEEL ENG AB·Filed 1984·Granted Sep 9, 1986·21 cites·5 claims
- 1370US4340420AMethod of manufacturing stainless steelSKF STEEL ENG AB·Filed 1980·Granted Jul 20, 1982·16 cites·11 claims
- 1469US4526612AMethod of manufacturing ferrosiliconSKF STEEL ENG AB·Filed 1983·Granted Jul 2, 1985·16 cites·17 claims
- 1567US4455165AIncreasing blast temperatureSKF STEEL ENG AB·Filed 1983·Granted Jun 19, 1984·13 cites·5 claims
- 1666US4692209ARecovery of chemicals from pulp waste liquorSKF STEEL ENG AB·Filed 1986·Granted Sep 8, 1987·21 cites·9 claims
- 1763US4643742AMethod for cooling gases and removing dust from themSKF STEEL ENG AB·Filed 1985·Granted Feb 17, 1987·30 cites·5 claims
- 1862US4624059AMethod and plant for cooling pelletsSKF STEEL ENG AB·Filed 1984·Granted Nov 25, 1986·12 cites·7 claims
- 1962US4487628ASelective reduction of heavy metalsSKF STEEL ENG AB·Filed 1983·Granted Dec 11, 1984·13 cites·9 claims
- 2059US4588436AMethod of recovering metals from liquid slagSKF STEEL ENG AB·Filed 1985·Granted May 13, 1986·13 cites·9 claims
- 2159US4310350ARecovering non-volatile metals from dust containing metal oxidesSKF STEEL ENG AB·Filed 1980·Granted Jan 12, 1982·9 cites·6 claims
- 2257US4594236AMethod of manufacturing calcium carbide from powdered lime and/or limestoneSKF STEEL ENG AB·Filed 1983·Granted Jun 10, 1986·9 cites·9 claims
- 2354US4454013AMethod of separating iron and its alloy metals from fine-grained crude oxidic productsSKF STEEL ENG AB·Filed 1983·Granted Jun 12, 1984·9 cites·8 claims
- 2454US4434001AMethod for manufacturing metal from fine-grain metal-oxide materialSKF STEEL ENG AB·Filed 1981·Granted Feb 28, 1984·11 cites·17 claims
- 2551US4548621ACondensing zinc vaporSKF STEEL ENG AB·Filed 1985·Granted Oct 22, 1985·8 cites·16 claims
- 2650US4585062AMethod of using rods resistant to hydrosulfuric acidSKF STEEL ENG AB·Filed 1983·Granted Apr 29, 1986·9 cites·6 claims
- 2749US4508566AMethod of cleaning a gas flow containing zinc vaporSKF STEEL ENG AB·Filed 1983·Granted Apr 2, 1985·7 cites·5 claims
- 2848US4362554AMethod and apparatus for manufacturing sponge ironSKF STEEL ENG AB·Filed 1981·Granted Dec 7, 1982·6 cites·19 claims
- 2947US4710269ARecovering chemicals from spent pulp liquorsSKF STEEL ENG AB·Filed 1986·Granted Dec 1, 1987·6 cites·7 claims
- 3047US4601786ARecovery of chemicals from pulp waste liquor with plasma generator heatingSKF STEEL ENG AB·Filed 1984·Granted Jul 22, 1986·9 cites·8 claims
- 3147US4584465AMethod and apparatus for heating process air for industrial purposesSKF STEEL ENG AB·Filed 1983·Granted Apr 22, 1986·6 cites·3 claims
- 3245US4481031AManufacture of aluminium-silicon alloysSKF STEEL ENG AB·Filed 1983·Granted Nov 6, 1984·6 cites·8 claims
- 3342US4936874AMethod of manufacturing a gas suitable for the production of energySKF STEEL ENG AB·Filed 1987·Granted Jun 26, 1990·4 cites·4 claims
- 3440US4362555AMethod and apparatus for manufacturing sponge ironSKF STEEL ENG AB·Filed 1981·Granted Dec 7, 1982·3 cites·21 claims
- 3538US4917763AMethod of recovering chemical from spent pulp liquorsSKF STEEL ENG AB·Filed 1988·Granted Apr 17, 1990·4 cites·5 claims
- 3637US4687513ACondensation of zinc vaporSKF STEEL ENG AB·Filed 1986·Granted Aug 18, 1987·3 cites·7 claims
- 3737US4570708AMethod of using pipes resistant to hydrosulphuric acidSKF STEEL ENG AB·Filed 1983·Granted Feb 18, 1986·9 cites·9 claims
- 3832US4432789AMethod of minimizing energy consumption when reducing iron oxide with reducing gasesSKF STEEL ENG AB·Filed 1983·Granted Feb 21, 1984·2 cites·8 claims
- 3930US4808795AMethod of continuously overheating large volumes of gasSKF STEEL ENG AB·Filed 1987·Granted Feb 28, 1989·3 cites·6 claims
- 4025US4638489AMethod and means for use in the installation of plasma generators in shaft furnacesSKF STEEL ENG AB·Filed 1985·Granted Jan 20, 1987·2 cites·15 claims
- 4124US4652725AMethod and apparatus for heating a first gas flow with a second gas flowSKF STEEL ENG AB·Filed 1984·Granted Mar 24, 1987·2 cites·6 claims
- 4223US4613364AMethod and means for manufacturing a preformed metal productSKF STEEL ENG AB·Filed 1985·Granted Sep 23, 1986·0 cites·8 claims
- 4322US4611110AMethod and apparatus for connecting a plasma generator to a reactorSKF STEEL ENG AB·Filed 1984·Granted Sep 9, 1986·1 cites·25 claims
- 4420US4706943AConnection device for plasma generatorsSKF STEEL ENG AB·Filed 1985·Granted Nov 17, 1987·0 cites·8 claims
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