Assignee
NORTHERN STATES POWER CO
US·11 granted patents·162 citations·filing 1984–1990
Top patents by PatentIndex Score
11 records- 0181US5019360AMethod for the processing of fly ash, scrubber sludge and the like; and productNORTHERN STATES POWER CO·Filed 1990·Granted May 28, 1991·27 cites·5 claims
- 0270US4762686AFlue gas scrubber systemNORTHERN STATES POWER CO·Filed 1986·Granted Aug 9, 1988·31 cites·8 claims
- 0368US5066325ACogeneration process for production of energy and iron materials, including steelNORTHERN STATES POWER CO·Filed 1989·Granted Nov 19, 1991·17 cites·20 claims
- 0463US5064174AApparatus for production of energy and iron materials, including steelNORTHERN STATES POWER CO·Filed 1988·Granted Nov 12, 1991·14 cites·18 claims
- 0558US4986966ARetrofit flue gas scrubber systemNORTHERN STATES POWER CO·Filed 1989·Granted Jan 22, 1991·20 cites·10 claims
- 0649US4861558AFlue gas scrubber system with chloride removalNORTHERN STATES POWER CO·Filed 1988·Granted Aug 29, 1989·14 cites·8 claims
- 0747US4853195AFlue gas scrubber systemNORTHERN STATES POWER CO·Filed 1987·Granted Aug 1, 1989·13 cites·12 claims
- 0841US5055131ACogeneration process for production of energy and iron materialsNORTHERN STATES POWER CO·Filed 1989·Granted Oct 8, 1991·4 cites·6 claims
- 0941US5045112ACogeneration process for production of energy and iron materials, including steelNORTHERN STATES POWER CO·Filed 1988·Granted Sep 3, 1991·4 cites·20 claims
- 1034US5078752ACoal gas productions coal-based combined cycle power productionNORTHERN STATES POWER CO·Filed 1990·Granted Jan 7, 1992·14 cites·10 claims
- 1118US4601430AAsh grinder for scrubber systemNORTHERN STATES POWER CO·Filed 1984·Granted Jul 22, 1986·4 cites·4 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →