Assignee
SMIDTH & CO AS F L
US·152 granted patents·2,300 citations·filing 1973–2000
Top patents by PatentIndex Score
152 records- 0195US4445911AMethod of controlling operation of an electrostatic precipitatorSMIDTH & CO AS F L·Filed 1981·Granted May 1, 1984·91 cites·26 claims
- 0294US4659342AMethod of controlling operation of an electrostatic precipitatorSMIDTH & CO AS F L·Filed 1984·Granted Apr 21, 1987·92 cites·18 claims
- 0393US4936876AMethod and apparatus for detecting back corona in an electrostatic filter with ordinary or intermittent DC-voltage supplySMIDTH & CO AS F L·Filed 1987·Granted Jun 26, 1990·111 cites·5 claims
- 0487US4984983AMethod of cofiring hazardous waste in industrial rotary kilnsSMIDTH & CO AS F L·Filed 1989·Granted Jan 15, 1991·51 cites·13 claims
- 0586US4626261AMethod of controlling intermittent voltage supply to an electrostatic precipitatorSMIDTH & CO AS F L·Filed 1985·Granted Dec 2, 1986·58 cites·17 claims
- 0685US4489895AVertical roller millsSMIDTH & CO AS F L·Filed 1983·Granted Dec 25, 1984·42 cites·3 claims
- 0784US4869434AVertical roller millSMIDTH & CO AS F L·Filed 1988·Granted Sep 26, 1989·32 cites·2 claims
- 0884US4644439AFast-acting spark-over detectorSMIDTH & CO AS F L·Filed 1984·Granted Feb 17, 1987·59 cites·3 claims
- 0983US5349910AMethod and apparatus for incinerating waste in a cement kiln plantSMIDTH & CO AS F L·Filed 1993·Granted Sep 27, 1994·31 cites·8 claims
- 1083US4030528AMagazine for bags such as sacksSMIDTH & CO AS F L·Filed 1975·Granted Jun 21, 1977·30 cites·25 claims
- 1182US3964717ATube millSMIDTH & CO AS F L·Filed 1974·Granted Jun 22, 1976·32 cites·18 claims
- 1281US5890888AMethod and cooler for cooling particulate materialSMIDTH & CO AS F L·Filed 1996·Granted Apr 6, 1999·18 cites·3 claims
- 1380US4485974AVertical roller mill and method of use thereofSMIDTH & CO AS F L·Filed 1981·Granted Dec 4, 1984·41 cites·10 claims
- 1480US4004876AMethod of burning pulverous raw material and rotary kiln plant thereforSMIDTH & CO AS F L·Filed 1975·Granted Jan 25, 1977·19 cites·28 claims
- 1579US5614016AMethod and plant for manufacturing cement clinkerSMIDTH & CO AS F L·Filed 1994·Granted Mar 25, 1997·35 cites·14 claims
- 1679US4369926AMethod and apparatus for grinding granular materialsSMIDTH & CO AS F L·Filed 1979·Granted Jan 25, 1983·30 cites·29 claims
- 1779US4353687ARotary kilnSMIDTH & CO AS F L·Filed 1980·Granted Oct 12, 1982·26 cites·10 claims
- 1878US4715544AVertical roller millSMIDTH & CO AS F L·Filed 1986·Granted Dec 29, 1987·26 cites·4 claims
- 1978US4582260AMethod of and plant for grinding pulverulent or granular materialsSMIDTH & CO AS F L·Filed 1983·Granted Apr 15, 1986·23 cites·2 claims
- 2078US4171949AArrangement for supporting rotary drumsSMIDTH & CO AS F L·Filed 1977·Granted Oct 23, 1979·20 cites·23 claims
- 2177US4689141ASeparator for sorting particulate material, with a plurality of separately adjustable guide vane setsSMIDTH & CO AS F L·Filed 1986·Granted Aug 25, 1987·32 cites·3 claims
- 2276US4025295AMethod of burning pulverous raw material and rotary kiln plant thereforSMIDTH & CO AS F L·Filed 1975·Granted May 24, 1977·28 cites·34 claims
- 2375US5417760AMethod for manufacturing of normal as well as ultra-fine cementSMIDTH & CO AS F L·Filed 1994·Granted May 23, 1995·26 cites·17 claims
- 2474US4529579AMethod for producing anhydrous aluminaSMIDTH & CO AS F L·Filed 1984·Granted Jul 16, 1985·24 cites·19 claims
- 2574US4344596AAdjustable roller support for a rotary drumSMIDTH & CO AS F L·Filed 1980·Granted Aug 17, 1982·21 cites·16 claims
- 2674US4022568AMethod and apparatus for heat treating pulverous raw materialsSMIDTH & CO AS F L·Filed 1975·Granted May 10, 1977·20 cites·20 claims
- 2773US5299512ABurner for a rotary kilnSMIDTH & CO AS F L·Filed 1992·Granted Apr 5, 1994·34 cites·8 claims
- 2872US4002420AMethod of burning calcined and uncalcined pulverous raw material and rotary kiln plant thereforSMIDTH & CO AS F L·Filed 1975·Granted Jan 11, 1977·14 cites·49 claims
- 2970US5713345AGrate elementSMIDTH & CO AS F L·Filed 1993·Granted Feb 3, 1998·17 cites·5 claims
- 3070US4555388AMethod and apparatus for calcining raw phosphate materialSMIDTH & CO AS F L·Filed 1983·Granted Nov 26, 1985·28 cites·6 claims
- 3168US6257877B1Kiln plant and method for manufacturing cementSMIDTH & CO AS F L·Filed 2000·Granted Jul 10, 2001·12 cites·9 claims
- 3264US5711802AHeat treatment of lime sludgeSMIDTH & CO AS F L·Filed 1995·Granted Jan 27, 1998·35 cites·8 claims
- 3364US4613346AEnergy control for electrostatic precipitatorSMIDTH & CO AS F L·Filed 1985·Granted Sep 23, 1986·27 cites·11 claims
- 3464US4382558ARoller millSMIDTH & CO AS F L·Filed 1980·Granted May 10, 1983·19 cites·12 claims
- 3564US4019546ARotary packer and method of filling bagsSMIDTH & CO AS F L·Filed 1975·Granted Apr 26, 1977·21 cites·40 claims
- 3664US3955995ACalcination of pulverous materialSMIDTH & CO AS F L·Filed 1973·Granted May 11, 1976·17 cites·39 claims
- 3763US5624039ASeparator for sorting of particular materialSMIDTH & CO AS F L·Filed 1994·Granted Apr 29, 1997·18 cites·2 claims
- 3863US4154088AApparatus for measuring the particulate matter content of a gasSMIDTH & CO AS F L·Filed 1976·Granted May 15, 1979·26 cites·13 claims
- 3963US4089634APlanetary cooler system for rotary kiln plant and the likeSMIDTH & CO AS F L·Filed 1976·Granted May 16, 1978·10 cites·19 claims
- 4062US4382561AVertical roller millSMIDTH & CO AS F L·Filed 1981·Granted May 10, 1983·15 cites·12 claims
- 4161US5698027AMethod and plant for manufacturing mineralized portland cement clinkerSMIDTH & CO AS F L·Filed 1995·Granted Dec 16, 1997·24 cites·15 claims
- 4261US4403952AApparatus for driving a rotary drum, such as a rotary kilnSMIDTH & CO AS F L·Filed 1981·Granted Sep 13, 1983·14 cites·8 claims
- 4359US5788480AGrate elementSMIDTH & CO AS F L·Filed 1993·Granted Aug 4, 1998·11 cites·30 claims
- 4459US4997363AMethod and apparatus for producing cement clinkerSMIDTH & CO AS F L·Filed 1989·Granted Mar 5, 1991·18 cites·12 claims
- 4559US4910684AMethod of controlling a rotary kiln during start-upSMIDTH & CO AS F L·Filed 1988·Granted Mar 20, 1990·29 cites·1 claims
- 4659US4059396ACement manufactureSMIDTH & CO AS F L·Filed 1975·Granted Nov 22, 1977·18 cites·14 claims
- 4759US4021195APlanetary cooler system for rotary drums such as kilnsSMIDTH & CO AS F L·Filed 1976·Granted May 3, 1977·9 cites·23 claims
- 4858US4391207AMethod of conditioning exhaust gases from coal firingSMIDTH & CO AS F L·Filed 1981·Granted Jul 5, 1983·11 cites·10 claims
- 4957US4848993ACycloneSMIDTH & CO AS F L·Filed 1987·Granted Jul 18, 1989·20 cites·8 claims
- 5057US4101337ACement manufactureSMIDTH & CO AS F L·Filed 1977·Granted Jul 18, 1978·16 cites·31 claims
Showing the top 50 of 152 patent records by PatentIndex Score.
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