Inventor · disambiguated record
Leonard J. Keller
Also filed as: KELLER LEONARD J · KELLER LEONARD JAMES
13 granted patents·447 citations·filing 1975–1997
93Inventor score
Top patents by PatentIndex Score
13 records- 0196US5134944AProcesses and means for waste resources utilizationKELLER LEONARD J·Filed 1991·Granted Aug 4, 1992·151 cites·13 claims
- 0292US4030893AMethod of preparing low-sulfur, low-ash fuelKELLER CORP·Filed 1976·Granted Jun 21, 1977·52 cites·17 claims
- 0389US4045092AFuel composition and method of manufactureKELLER CORP·Filed 1975·Granted Aug 30, 1977·40 cites·13 claims
- 0484US4018293AMethod and apparatus for controlled fracturing of subterranean formationsKELLER CORP·Filed 1976·Granted Apr 19, 1977·57 cites·11 claims
- 0575US4146366AMethod of removing gangue materials from coalKELLER CORP·Filed 1977·Granted Mar 27, 1979·23 cites·18 claims
- 0673US4192651AMethod of producing pulverulent carbonaceous fuelKELLER CORP·Filed 1978·Granted Mar 11, 1980·21 cites·8 claims
- 0772US4953479AMethacoal integrated combined cycle power plantsKELLER LEONARD J·Filed 1989·Granted Sep 4, 1990·29 cites·17 claims
- 0870US3968999AMethod of making available fuels from arctic environmentsKELLER CORP·Filed 1975·Granted Jul 13, 1976·20 cites·2 claims
- 0967US4089657AStabilized suspension of carbon in hydrocarbon fuel and method of preparationKELLER CORP·Filed 1977·Granted May 16, 1978·17 cites·13 claims
- 1052US5045087AStabilized suspensions of carbon or carbonaceous fuel particles in waterKELLER CORP·Filed 1988·Granted Sep 3, 1991·9 cites·17 claims
- 1144US5826650ADevices and methods for utilization of intermittently available electric energy for heating and cooling of habitable structuresFiled 1997·Granted Oct 27, 1998·20 cites·17 claims
- 1240US4097217AMethod for converting combustor from hydrocarbonaceous fuel to carbonaceous fuelKELLER CORP·Filed 1976·Granted Jun 27, 1978·8 cites·5 claims
- 1329US4742784AMethods for reducing nitrogen oxides emissions from power plants fired by various coalsSTANTON AUSTIN N·Filed 1987·Granted May 10, 1988·0 cites·5 claims
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