Inventor · disambiguated record
Richard W. Hirthe
Also filed as: HIRTHE RICHARD · HIRTHE RICHARD W · HIRTHE RICHARD WALTER · KOEHLER CHARLES J
15 granted patents·5 pending applications·413 citations·filing 1995–2008
95Inventor score
Top patents by PatentIndex Score
20 records- 0186US7043372B2Fluid condition monitoring using broad spectrum impedance spectroscopyEATON CORP·Filed 2003·Granted May 9, 2006·31 cites·100 claims
- 0285US7049831B2Fluid quality control using broad spectrum impedance spectroscopyEATON CORP·Filed 2004·Granted May 23, 2006·25 cites·55 claims
- 0385US6844745B1Method of determining the fluid condition of diesel engine lubricant during real time operationEATON CORP·Filed 2003·Granted Jan 18, 2005·33 cites·4 claims
- 0485US6278281B1Fluid condition monitorEATON CORP·Filed 1998·Granted Aug 21, 2001·81 cites·19 claims
- 0584US6377052B1Monitoring fluid condition through an apertureEATON CORP·Filed 1999·Granted Apr 23, 2002·76 cites·40 claims
- 0683US6989680B2Detection of coolant contamination in lubricating fluidsEATON CORP·Filed 2004·Granted Jan 24, 2006·24 cites·9 claims
- 0782US7078910B2Fluid formulation evaluation and improvement utilizing broad spectrum impedance spectroscopyEATON CORP·Filed 2004·Granted Jul 18, 2006·27 cites·29 claims
- 0881US7199595B2Fluid quality control using broad spectrum impedance spectroscopyEATON CORP·Filed 2006·Granted Apr 3, 2007·7 cites·48 claims
- 0980US6850865B2Monitoring automatic transmission fluid condition in real timeEATON CORP·Filed 2002·Granted Feb 1, 2005·20 cites·10 claims
- 1075US6839620B1Detecting soot during real time operation in diesel engine lubricantEATON CORP·Filed 2003·Granted Jan 4, 2005·14 cites·7 claims
- 1170US6380746B1Monitoring fluid condition with a spiral electrode configurationEATON CORP·Filed 1999·Granted Apr 30, 2002·37 cites·19 claims
- 1256US2009115436A1Methods for Determining Fluid PropertiesKOEHLER III CHARLES J·Filed 2008·Application pending·0 cites
- 1353US2009115434A1Sample Cell for Hand-Held Impedance Spectroscopy DeviceHIRTHE RICHARD W·Filed 2008·Application pending·0 cites
- 1452US2008167823A1Impedance spectroscopy (is) methods and systems for characterizing fuelPARADIGM SENSORS LLC·Filed 2007·Application pending·0 cites
- 1552US2008172187A1Impedance spectroscopy (is) methods and systems for characterizing fuelPARADIGM SENSORS LLC·Filed 2007·Application pending·0 cites
- 1649US2006155485A1Fluid condition monitoring using broad spectrum impedance spectroscopyKOEHLER CHARLES J·Filed 2006·Application pending·0 cites
- 1743US5680055AMethod and apparatus to sense changes in the state of a resin bedUNIV MARQUETTE·Filed 1995·Granted Oct 21, 1997·14 cites·14 claims
- 1842US6300778B1Solder paste and residueUS NAVY·Filed 1999·Granted Oct 9, 2001·8 cites·2 claims
- 1941US6005399ASolder paste and residue measurement systemUS NAVY·Filed 1997·Granted Dec 21, 1999·8 cites·1 claims
- 2040US5656933ASolder paste and residue measurement systemUS NAVY·Filed 1995·Granted Aug 12, 1997·8 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →