Inventor · disambiguated record
John G. Nunan
Also filed as: NUNAN JOHN · NUNAN JOHN G · NUNAN JOHN GERARD
31 granted patents·5 pending applications·1,248 citations·filing 1990–2021
98Inventor score
Files withUMICORE AG & CO KG19DELPHI TECH INC5ASEC MANUFACTURING GENERAL PAR3NUNAN JOHN G3SOUTHWARD BARRY W L3
Top patents by PatentIndex Score
36 records- 0197US8394348B1Three-way catalyst having a upstream multi-layer catalystUMICORE AG & CO KG·Filed 2012·Granted Mar 12, 2013·55 cites·15 claims
- 0297US6585944B1Enhancement of the OSC properties of Ce-Zr based solid solutionsDELPHI TECH INC·Filed 2000·Granted Jul 1, 2003·125 cites·15 claims
- 0397US6468941B1Niobium containing zirconium-cerium based soild solutionsDELPHI TECH INC·Filed 2000·Granted Oct 22, 2002·120 cites·7 claims
- 0496US8323599B2Three-way catalyst having an upstream multi-layer catalystNUNAN JOHN G·Filed 2010·Granted Dec 4, 2012·44 cites·15 claims
- 0596US8017097B1ZrOx, Ce-ZrOx, Ce-Zr-REOx as host matrices for redox active cations for low temperature, hydrothermally durable and poison resistant SCR catalystsUMICORE AG & CO KG·Filed 2010·Granted Sep 13, 2011·26 cites·40 claims
- 0695US7943104B2CE-ZR based solid solutions and methods for making and using the sameUMICORE AG & CO KG·Filed 2006·Granted May 17, 2011·40 cites·15 claims
- 0794US8557204B2Three-way catalyst having an upstream single-layer catalystNUNAN JOHN G·Filed 2010·Granted Oct 15, 2013·51 cites·14 claims
- 0894US7875250B2Exhaust treatment device, and methods of making the sameUMICORE AG & CO KG·Filed 2003·Granted Jan 25, 2011·82 cites·19 claims
- 0994US6605264B2Niobium containing zirconium-cerium based solid solutionsDELPHI TECH INC·Filed 2002·Granted Aug 12, 2003·55 cites·17 claims
- 1093US11161098B2Three-way catalystUMICORE AG & CO KG·Filed 2018·Granted Nov 2, 2021·19 cites·21 claims
- 1193US10184374B2Apparatus and method for desulfation of a catalyst used in a lean burn methane source fueled combustion systemUMICORE AG & CO KG·Filed 2017·Granted Jan 22, 2019·9 cites·31 claims
- 1292US8246923B2High Pd content diesel oxidation catalysts with improved hydrothermal durabilitySOUTHWARD BARRY W L·Filed 2009·Granted Aug 21, 2012·33 cites·24 claims
- 1392US6387338B1Preparation of multi-component Ce, Zr, Mox high oxygen-ion-conduct/oxygen-storage-capacity materialsDELPHI TECH INC·Filed 2000·Granted May 14, 2002·105 cites·23 claims
- 1491US11331651B2Three-way catalystUMICORE AG & CO KG·Filed 2018·Granted May 17, 2022·5 cites·21 claims
- 1591US11224861B2Layered TWCUMICORE AG & CO KG·Filed 2020·Granted Jan 18, 2022·4 cites·20 claims
- 1691US10828623B2Hydrocarbon trap catalystUMICORE AG & CO KG·Filed 2018·Granted Nov 10, 2020·5 cites·20 claims
- 1791US8968690B2Three-way catalyst having an upstream single-layer catalystNUNAN JOHN G·Filed 2011·Granted Mar 3, 2015·33 cites·15 claims
- 1891US7041622B2Catalyst, an exhaust emission control device and a method of using the sameDELPHI TECH INC·Filed 2003·Granted May 9, 2006·42 cites·20 claims
- 1991US6040265AMethods of making highly dispersed substantially uniform cerium and zirconium mixed-metal-oxide composite supports for exhaust conversion catalystsASEC MANUFACTURING GENERAL PAR·Filed 1998·Granted Mar 21, 2000·106 cites·2 claims
- 2090US10850264B2Hydrocarbon trap catalystUMICORE AG & CO KG·Filed 2018·Granted Dec 1, 2020·4 cites·20 claims
- 2190US5064803APreparation of three-way catalysts with highly dispersed ceriaALLIED SIGNAL INC·Filed 1990·Granted Nov 12, 1991·72 cites·18 claims
- 2288US6326329B1Highly dispersed substantially uniform mixed-metal-oxide composite supports for exhaust conversion catalystsASEC MFG·Filed 1997·Granted Dec 4, 2001·86 cites·8 claims
- 2387US8529853B2ZrOx, Ce-ZrOx, Ce-Zr-REOx as host matrices for redox active cations for low temperature, hydrothermally durable and poison resistant SCR catalystsSOUTHWARD BARRY W L·Filed 2011·Granted Sep 10, 2013·7 cites·15 claims
- 2486US10323593B2Exhaust aftertreatment systemUMICORE AG & CO KG·Filed 2014·Granted Jun 18, 2019·6 cites·21 claims
- 2586US5977012AAlloyed metal catalysts for the reduction of NOx in the exhaust gases from internal combustion engines containing excess oxygenASEC MANUFACTURING GENERAL PAR·Filed 1998·Granted Nov 2, 1999·75 cites·4 claims
- 2676US10781735B2Exhaust emission reduction system having an HC-trap and NOx-trap combination designed for operating under strategic lean conditionsUMICORE AG & CO KG·Filed 2018·Granted Sep 22, 2020·1 cites·28 claims
- 2772US7879748B2Method for producing a catalyst and the catalyst made therefromUMICORE AG & CO KG·Filed 2006·Granted Feb 1, 2011·5 cites·24 claims
- 2871US11648535B2Layered TWCUMICORE AG & CO KG·Filed 2021·Granted May 16, 2023·0 cites·19 claims
- 2968US6013313AMethods for making highly dispersed homogeneous compositionsASEC MANUFACTURING GENERAL PAR·Filed 1998·Granted Jan 11, 2000·31 cites·20 claims
- 3063US2019383185A1Apparatus and method for desulfation of a catalyst used in a lean burn methane source fueled combustion systemUMICORE AG & CO KG·Filed 2018·Application pending·0 cites
- 3149US2021213425A1Three-way-catalystUMICORE AG & CO KG·Filed 2020·Application pending·0 cites
- 3249US2010077727A1Continuous diesel soot control with minimal back pressure penatly using conventional flow substrates and active direct soot oxidation catalyst disposed thereonSOUTHWARD BARRY W L·Filed 2009·Application pending·0 cites
- 3348US7563746B2Catalyst and method of making the sameUMICORE AG & CO KG·Filed 2004·Granted Jul 21, 2009·2 cites·20 claims
- 3447US11123720B2Hydrocarbon trap catalystUMICORE AG & CO KG·Filed 2018·Granted Sep 21, 2021·0 cites·22 claims
- 3543US2019353067A1Exhaust treatment systems and methods involving oxygen supplementation and hydrocarbon trappingUMICORE AG & CO KG·Filed 2018·Application pending·0 cites
- 3643US2005282698A1Particulate filter device and exhaust treatment system, and methods of regenerating the sameSOUTHWARD BARRY W·Filed 2004·Application pending·0 cites
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