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LEVIJOKI STEPHEN PAUL

Overview
  • Total Patents
    12
About

LEVIJOKI STEPHEN PAUL has a total of 12 patent applications. Its first patent ever was published in 2009. It filed its patents most often in United States. Its main competitors in its focus markets environmental technology, engines, pumps and turbines and chemical engineering are YACOUB YASSER MOHAMED SAYED, LILJESTRAND ANDREAS and GONZE EUGENE V.

Patent filings in countries

World map showing LEVIJOKI STEPHEN PAULs patent filings in countries
# Country Total Patents
#1 United States 12

Patent filings per year

Chart showing LEVIJOKI STEPHEN PAULs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Levijoki Stephen Paul 12
#2 Siekkinen John W 3
#3 Thompson Brett B 3
#4 Stark Cheryl J 2
#5 Dokter Michael John 2
#6 Shetney Justin A 2
#7 Jasinkiewicz Paul 2
#8 Wang Yue-Yun 2
#9 Gordon Scott R 2
#10 Klauser Eric E 1

Latest patents

Publication Filing date Title
US2014072450A1 System and method for diagnosing a fault in a switchable water pump for an engine based on a change in crankshaft speed
US2014019026A1 Low coolant temperature fault diagnostic systems and methods
US2013014575A1 Exhaust diagnostic system and method with SCR NH3 depletion cleansing mode for initial step in the def quality service healing test
US2013276428A1 Exhaust diagnostic control system and method with NH3 depletion cleansing
US2013104626A1 System and method for diagnosing faults in an oxygen sensor
US2012317959A1 Diagnostic system and method for an oxygen sensor positioned downstream from a catalytic converter
US2012233984A1 Method and system for controlling a nitrogen oxide (NOx) conversion efficiency monitor
US2012085082A1 System and method for detecting low quality reductant and catalyst degradation in selective catalytic reduction systems
US2012144801A1 System and method for determining selective catalytic reduction dosing system performance using an ammonia sensor
US2011023456A1 Method and system for verifying the operation of an SCR catalyst
US2011061363A1 Exhaust diagnostic systems and methods for resetting after operation with poor reductant quality
US2011061372A1 Intrusive SCR efficency testing systems and methods for vehicles with low temperature exhaust gas