Helmick; Jeffry A.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Helmick; Jeffry A..The latest application filed is for "nox formation prediction for improved catalytic converter control".

Company Profile

2.6.7

Helmick; Jeffry A. - Oxford MI

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Nox Formation Prediction For Improved Catalytic Converter Control App 20200116093 - Geng; Jianyang ; et al.	2020-04-16
Oxygen Sensor Diagnostic App 20200049091 - Dai; Junhong ; et al.	2020-02-13
Diagnostic system and method for an oxygen sensor positioned downstream from a catalytic converter Grant 9,181,844 - Levijoki , et al. November 10, 2	2015-11-10
Systems and methods for diagnosing oxygen sensors and catalytic converters of exhaust systems Grant 8,583,349 - Anilovich , et al. November 12, 2	2013-11-12
Diagnostic System And Method For An Oxygen Sensor Positioned Downstream From A Catalytic Converter App 20120317959 - Levijoki; Stephen Paul ; et al.	2012-12-20
Post oxygen sensor performance diagnostic with minimum air flow Grant 8,086,392 - Anilovich , et al. December 27, 2	2011-12-27
Systems And Methods For Diagnosing Oxygen Sensors And Catalytic Converters Of Exhaust Systems App 20110106411 - Anilovich; Igor ; et al.	2011-05-05
Exhaust system monitoring methods and systems Grant 7,900,439 - Genslak , et al. March 8, 2	2011-03-08
Post Oxygen Sensor Performance Diagnostic With Minimum Air Flow App 20100242933 - Anilovich; Igor ; et al.	2010-09-30
Exhaust system monitoring methods and systems App 20080302087 - Genslak; Robert J. ; et al.	2008-12-11
Current control method for an oxygen sensor heater App 20030019865 - Whitney, Christopher E. ; et al.	2003-01-30

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