Inventor · disambiguated record
David E. Herman
Also filed as: HERMAN DAVID E
12 granted patents·252 citations·filing 1980–1985
92Inventor score
Files withSTANDARD OIL CO OHIO6SOHIO ALTERNATE ENERGY DEV3GULF & WESTERN INDUSTRIES2GULF & WESTERN MFG CO1
Top patents by PatentIndex Score
12 records- 0185US4671801AMethod for the beneficiation, liquefaction and recovery of coal and other solid carbonaceous materialsSTANDARD OIL CO OHIO·Filed 1985·Granted Jun 9, 1987·53 cites·27 claims
- 0285US4347126AApparatus and method for flotation separation utilizing a spray nozzleGULF & WESTERN MFG CO·Filed 1981·Granted Aug 31, 1982·31 cites·25 claims
- 0379US4332593AProcess for beneficiating coalGULF & WESTERN INDUSTRIES·Filed 1980·Granted Jun 1, 1982·33 cites·11 claims
- 0476US4514291AApparatus and method for flotation separation utilizing an improved spiral spray nozzleSTANDARD OIL CO OHIO·Filed 1983·Granted Apr 30, 1985·29 cites·7 claims
- 0573US4564369AApparatus for the enhanced separation of impurities from coalSTANDARD OIL CO OHIO·Filed 1983·Granted Jan 14, 1986·24 cites·7 claims
- 0673US4406664AProcess for the enhanced separation of impurities from coal and coal products produced therefromGULF & WESTERN INDUSTRIES·Filed 1981·Granted Sep 27, 1983·25 cites·31 claims
- 0765US4650567AApparatus and method for flotation separation utilizing an improved spiral spray nozzleSTANDARD OIL CO OHIO·Filed 1985·Granted Mar 17, 1987·22 cites·22 claims
- 0860US4583990AMethod for the beneficiation of low rank coalSTANDARD OIL CO OHIO·Filed 1983·Granted Apr 22, 1986·11 cites·19 claims
- 0956US4536372AApparatus for beneficiating coalSTANDARD OIL CO OHIO·Filed 1984·Granted Aug 20, 1985·11 cites·4 claims
- 1038US4605420AMethod for the beneficiation of oxidized coalSOHIO ALTERNATE ENERGY DEV·Filed 1984·Granted Aug 12, 1986·6 cites·3 claims
- 1138US4597858AMultistream, multiproduct beneficiation arrangementSOHIO ALTERNATE ENERGY DEV·Filed 1984·Granted Jul 1, 1986·6 cites·5 claims
- 1229US4605494AMultistream, multiproduct, pressure manipulation beneficiation arrangementSOHIO ALTERNATE ENERGY DEV·Filed 1984·Granted Aug 12, 1986·1 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →