Inventor · disambiguated record
Walter T. Symons
Also filed as: SYMONS WALTER · SYMONS WALTER T · SYMONS WALTER THOMAS
26 granted patents·13 pending applications·429 citations·filing 1991–2015
97Inventor score
Top patents by PatentIndex Score
39 records- 0194US7294252B2NOx sensor and methods of using the sameDELPHI TECH INC·Filed 2006·Granted Nov 13, 2007·27 cites·11 claims
- 0289US6562747B2Gas sensor electrolyteDELPHI TECH INC·Filed 2000·Granted May 13, 2003·37 cites·10 claims
- 0386US6579435B2Gas sensorDELPHI TECH INC·Filed 2000·Granted Jun 17, 2003·32 cites·6 claims
- 0486US6562215B1Planar exhaust sensor element with enhanced geometryDELPHI TECH INC·Filed 2000·Granted May 13, 2003·30 cites·16 claims
- 0585US5202299ACatalytic washcoat for treatment of diesel exhaustGEN MOTORS CORP·Filed 1991·Granted Apr 13, 1993·57 cites·14 claims
- 0684US7048844B2Gas sensor and method for use thereofDELPHI TECH INC·Filed 2002·Granted May 23, 2006·28 cites·15 claims
- 0784US6544467B2Exhaust gas sensor and the method of manufacture thereofDELPHI TECH INC·Filed 2000·Granted Apr 8, 2003·28 cites·17 claims
- 0883US7074319B2Ammonia gas sensorsDELPHI TECH INC·Filed 2003·Granted Jul 11, 2006·22 cites·15 claims
- 0983US6579436B2Gas sensor and method of producing the sameDELPHI TECH INC·Filed 2000·Granted Jun 17, 2003·25 cites·14 claims
- 1081US7280028B2Temperature sensor and method of making the sameDELPHI TECH INC·Filed 2004·Granted Oct 9, 2007·21 cites·3 claims
- 1180US8103458B2Exhaust gas sensing system and method for determining concentrations of exhaust gas constituentsWANG DA YU·Filed 2008·Granted Jan 24, 2012·8 cites·4 claims
- 1280US7722749B2Gas sensor and method for forming sameDELPHI TECH INC·Filed 2005·Granted May 25, 2010·7 cites·27 claims
- 1379US6800158B2Method of making a sensor and the product produced therefromDELPHI TECH INC·Filed 2001·Granted Oct 5, 2004·19 cites·21 claims
- 1479US6638416B2Hydrogen sensing processDELPHI TECH INC·Filed 2001·Granted Oct 28, 2003·17 cites·11 claims
- 1576US6365880B1Heater patterns for planar gas sensorsDELPHI TECH INC·Filed 2000·Granted Apr 2, 2002·11 cites·17 claims
- 1675US8051700B2Exhaust gas sensor and method for determining concentrations of exhaust gas constituentsDELPHI TECH INC·Filed 2008·Granted Nov 8, 2011·4 cites·6 claims
- 1774US6435005B1Heater patterns for planar gas sensorsDELPHI TECH INC·Filed 2000·Granted Aug 20, 2002·17 cites·11 claims
- 1873US7828955B2Ammonia gas sensorsDELPHI TECH INC·Filed 2006·Granted Nov 9, 2010·3 cites·38 claims
- 1972US6984298B2Gas sensor having an insulating layerDELPHI TECH INC·Filed 2002·Granted Jan 10, 2006·11 cites·21 claims
- 2068US7138604B2Ceramic device, sensor device, method of making the same, and method for sensing gasDELPHI TECH INC·Filed 2004·Granted Nov 21, 2006·7 cites·18 claims
- 2167US6793788B2Method and device for hydrogen and hydrocarbon sensingDELPHI TECH INC·Filed 2002·Granted Sep 21, 2004·7 cites·9 claims
- 2266US8658013B2Sensor and sensing methodWANG DA YU·Filed 2005·Granted Feb 25, 2014·1 cites·16 claims
- 2364US7279133B2Planar sensor and a method for measuring the temperature of sameDELPHI TECH INC·Filed 2001·Granted Oct 9, 2007·6 cites·4 claims
- 2464US6486449B2Heater patterns for planar gas sensorsDELPHI TECH INC·Filed 2001·Granted Nov 26, 2002·4 cites·7 claims
- 2557US2016116372A1Thermal shock resistant coated exhaust sensorDELPHI TECH INC·Filed 2015·Application pending·0 cites
- 2652US2009301878A1Ammonia sensor element, method of making thereof, and ammonia sensor derived therefromWANG DA YU·Filed 2008·Application pending·0 cites
- 2750US2015168261A1Thermal shock resistant coated exhaust sensorDELPHI TECH INC·Filed 2013·Application pending·0 cites
- 2847US7785725B2Compound for a solid oxide fuel cell stack gasketDELPHI TECH INC·Filed 2004·Granted Aug 31, 2010·0 cites·29 claims
- 2947US2008283398A1Soot sensing systems having soot sensors and methods for manufacturing the soot sensorsNELSON CHARLES SCOTT·Filed 2007·Application pending·0 cites
- 3046US2007026285A1Proton conducting solid oxide electrolytes, electrochemical cells utilizing the proton conducting materials and methods of making the sameWANG DA Y·Filed 2005·Application pending·0 cites
- 3146US2007080074A1Multicell ammonia sensor and method of use thereofDELPHI TECH INC·Filed 2006·Application pending·0 cites
- 3246US2013264203A1Low cost co-fired sensor heating circuitGAMBOA OSCAR·Filed 2011·Application pending·0 cites
- 3345US2007294881A1Temperature sensor and method of making the sameDELPHI TECH INC·Filed 2007·Application pending·0 cites
- 3443US2008023329A1Exhaust gas sensor having a conductive shield and method for routing mobile ions to a contact pad utilizing the conductive shieldTHRUN LORA B·Filed 2006·Application pending·0 cites
- 3543US2013270257A1Exhaust sensor heater circuit for non-calibrated replacement in existing applicationsSARKAR DEBABRATA·Filed 2011·Application pending·0 cites
- 3641US2007125664A1Gas sensor element and methods of making and using the sameLABARGE WILLIAM J·Filed 2005·Application pending·0 cites
- 3741US2009260987A1Method of making gas sensor element, and gas sensor derived therefromVALDES CARLOS A·Filed 2008·Application pending·0 cites
- 3840US9429540B2Low-temperature activity exhaust sensorCLYDE ERIC P·Filed 2011·Granted Aug 30, 2016·0 cites·7 claims
- 3940US2006151338A1Multi-function sensor system and method of operationWANG DA Y·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →