Inventor · disambiguated record
Ronald J. Spiegel
Also filed as: SPIEGEL RONALD J
5 granted patents·495 citations·filing 1992–1999
86Inventor score
Top patents by PatentIndex Score
5 records- 0197US5652485AFuzzy logic integrated electrical control to improve variable speed wind turbine efficiency and performanceUS ARMY·Filed 1995·Granted Jul 29, 1997·218 cites·21 claims
- 0296US5451249ALandfill gas treatment systemINT FUEL CELLS CORP·Filed 1994·Granted Sep 19, 1995·142 cites·14 claims
- 0383US5976373ARemoval of hydrogen sulfide from anaerobic digester gasINT FUEL CELLS LLC·Filed 1999·Granted Nov 2, 1999·67 cites·5 claims
- 0471US5272428AFuzzy logic integrated control method and apparatus to improve motor efficiencyUS ARMY·Filed 1992·Granted Dec 21, 1993·62 cites·40 claims
- 0545US5916438ARemoval of hydrogen sulfide from anaerobic digester gasINT FUEL CELLS LLC·Filed 1994·Granted Jun 29, 1999·6 cites·6 claims
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