Assignee
DIRECT REDUCTION CORP
15 granted patents·143 citations·filing 1979–1982
Top patents by PatentIndex Score
15 records- 0185US4273314ADirect reduction rotary kiln with improved air injectionDIRECT REDUCTION CORP·Filed 1979·Granted Jun 16, 1981·19 cites·10 claims
- 0282US4299694AMethod and apparatus for char separation from the discharge materials of an iron oxide reducing kilnDIRECT REDUCTION CORP·Filed 1980·Granted Nov 10, 1981·36 cites·11 claims
- 0375US4389242AInterior arrangement for direct reduction rotary kilns and methodDIRECT REDUCTION CORP·Filed 1982·Granted Jun 21, 1983·25 cites·10 claims
- 0464US4304597ASystem for control of sinter formation in iron oxide reducing kilnsDIRECT REDUCTION CORP·Filed 1980·Granted Dec 8, 1981·13 cites·12 claims
- 0555US4330325ADirect reduction rotary kiln with improved air injectionDIRECT REDUCTION CORP·Filed 1981·Granted May 18, 1982·8 cites·9 claims
- 0643US4378241AMethod for achieving low sulfur levels in the DRI product from iron oxide reducing kilnsDIRECT REDUCTION CORP·Filed 1980·Granted Mar 29, 1983·5 cites·7 claims
- 0740US4397569ASystem for correlating a signal sensor location with a recorder printoutDIRECT REDUCTION CORP·Filed 1981·Granted Aug 9, 1983·10 cites·13 claims
- 0839US4378244ASystem for coal injection in iron oxide reducing kilnsDIRECT REDUCTION CORP·Filed 1981·Granted Mar 29, 1983·5 cites·16 claims
- 0939US4337084ASystem for recycling char in iron oxide reducing kilnsDIRECT REDUCTION CORP·Filed 1980·Granted Jun 29, 1982·3 cites·11 claims
- 1038US4375883ASystem for recycling char in iron oxide reducing kilnsDIRECT REDUCTION CORP·Filed 1981·Granted Mar 8, 1983·3 cites·9 claims
- 1135US4376280AInstrument system for iron oxide reducing kilnsDIRECT REDUCTION CORP·Filed 1981·Granted Mar 8, 1983·9 cites·14 claims
- 1230US4356031AApparatus and method for controlling the recycle char circuit in a direct reduction processDIRECT REDUCTION CORP·Filed 1981·Granted Oct 26, 1982·2 cites·10 claims
- 1327US4378243ASystem for coal blowing in iron oxide reducing kilnsDIRECT REDUCTION CORP·Filed 1981·Granted Mar 29, 1983·1 cites·15 claims
- 1424US4306643ACoal feed pipe and positionerDIRECT REDUCTION CORP·Filed 1979·Granted Dec 22, 1981·1 cites·11 claims
- 1522US4354392ARotary kiln material sampling systemDIRECT REDUCTION CORP·Filed 1981·Granted Oct 19, 1982·3 cites·8 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →