Inventor · disambiguated record
Jeffry A. Helmick
Also filed as: HELMICK JEFFRY A
5 granted patents·2 pending applications·70 citations·filing 2001–2018
80Inventor score
Files withANILOVICH IGOR2GM GLOBAL TECH OPERATIONS LLC2GEN MOTORS CORP1GM GLOBAL TECH OPERATIONS INC1LEVIJOKI STEPHEN PAUL1
Top patents by PatentIndex Score
7 records- 0186US7900439B2Exhaust system monitoring methods and systemsGM GLOBAL TECH OPERATIONS INC·Filed 2007·Granted Mar 8, 2011·26 cites·14 claims
- 0282US8583349B2Systems and methods for diagnosing oxygen sensors and catalytic converters of exhaust systemsANILOVICH IGOR·Filed 2009·Granted Nov 12, 2013·16 cites·19 claims
- 0381US8086392B2Post oxygen sensor performance diagnostic with minimum air flowANILOVICH IGOR·Filed 2009·Granted Dec 27, 2011·11 cites·20 claims
- 0475US6586711B2Current control method for an oxygen sensor heaterGEN MOTORS CORP·Filed 2001·Granted Jul 1, 2003·17 cites·8 claims
- 0545US9181844B2Diagnostic system and method for an oxygen sensor positioned downstream from a catalytic converterLEVIJOKI STEPHEN PAUL·Filed 2011·Granted Nov 10, 2015·0 cites·27 claims
- 0639US2020116093A1Nox formation prediction for improved catalytic converter controlGM GLOBAL TECH OPERATIONS LLC·Filed 2018·Application pending·0 cites
- 0738US2020049091A1Oxygen sensor diagnosticGM GLOBAL TECH OPERATIONS LLC·Filed 2018·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →