Inventor · disambiguated record
Ellen S. Schwartz
Also filed as: SCHWARTZ ELLEN S · SCHWARTZ ELLEN SHIRLEY · SCHWARTZ ELLEN SHIRLEY E
10 granted patents·420 citations·filing 1981–2008
92Inventor score
Top patents by PatentIndex Score
10 records- 0191US4742476AAutomatic engine oil change indicator systemGEN MOTORS CORP·Filed 1986·Granted May 3, 1988·99 cites·5 claims
- 0289US4391722AWater-based low foam hydraulic fluid employing 2-ethylhexanol defoamerBASF WYANDOTTE CORP·Filed 1981·Granted Jul 5, 1983·45 cites·12 claims
- 0388US4847768AAutomatic engine oil change indicator systemGEN MOTORS CORP·Filed 1988·Granted Jul 11, 1989·80 cites·14 claims
- 0487US4390439AWater-based hydraulic fluids having improved lubricity and corrosion inhibiting properties employing neodecanoic acidBASF WYANDOTTE CORP·Filed 1981·Granted Jun 28, 1983·37 cites·14 claims
- 0586US4686058AThickened-water based hydraulic fluidsBASF CORP·Filed 1983·Granted Aug 11, 1987·33 cites·10 claims
- 0685US6327900B1Oil life monitor for diesel enginesGEN MOTORS CORP·Filed 1999·Granted Dec 11, 2001·53 cites·7 claims
- 0783US4493780AWater-based hydraulic fluids having improved lubricity and corrosion inhibiting propertiesBASF WYANDOTTE CORP·Filed 1983·Granted Jan 15, 1985·31 cites·14 claims
- 0880US6922064B2Fluid quality test method based on impedanceGEN MOTORS CORP·Filed 2003·Granted Jul 26, 2005·17 cites·22 claims
- 0964US4390440AThickened water-based hydraulic fluidsBASF WYANDOTTE CORP·Filed 1981·Granted Jun 28, 1983·19 cites·42 claims
- 1061US8151775B2High vacuum crankcase ventilationKIM CHANGSOO·Filed 2008·Granted Apr 10, 2012·6 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →