Assignee
JOHNSON MATTHEY PLC
GB·851 granted patents·345 pending applications·11,094 citations·filing 1980–2025
Top patents by PatentIndex Score
1,196 records- 0198US10625208B2Oxidation catalyst for treating the exhaust gas of a compression ignition engineJOHNSON MATTHEY PLC·Filed 2019·Granted Apr 21, 2020·15 cites·13 claims
- 0298US10569257B2Oxidation catalyst for a compression ignition engineJOHNSON MATTHEY PLC·Filed 2018·Granted Feb 25, 2020·17 cites·16 claims
- 0398US10286359B2Diesel oxidation catalyst and exhaust systemJOHNSON MATTHEY PLC·Filed 2015·Granted May 14, 2019·21 cites·20 claims
- 0498US9987618B2Oxidation catalyst for a compression ignition engineJOHNSON MATTHEY PLC·Filed 2017·Granted Jun 5, 2018·20 cites·12 claims
- 0598US9937489B2Exhaust system without a DOC having an ASC acting as a DOC in a system with an SCR catalyst before the ASCJOHNSON MATTHEY PLC·Filed 2016·Granted Apr 10, 2018·17 cites·13 claims
- 0698US9849423B2Diesel oxidation catalyst and exhaust systemJOHNSON MATTHEY PLC·Filed 2015·Granted Dec 26, 2017·16 cites·18 claims
- 0798US9643161B2Oxidation catalyst for a compression ignition engineJOHNSON MATTHEY PLC·Filed 2014·Granted May 9, 2017·25 cites·12 claims
- 0898US9636634B2Diesel oxidation catalyst and exhaust systemJOHNSON MATTHEY PLC·Filed 2015·Granted May 2, 2017·33 cites·20 claims
- 0998US9527035B2Catalysed soot filter for treating the exhaust gas of a compression ignition engineJOHNSON MATTHEY PLC·Filed 2015·Granted Dec 27, 2016·16 cites·19 claims
- 1098US9527034B2Oxidation catalyst for treating the exhaust gas of a compression ignition engineJOHNSON MATTHEY PLC·Filed 2015·Granted Dec 27, 2016·28 cites·20 claims
- 1198US9272264B2Catalyst manufacturing methodJOHNSON MATTHEY PLC·Filed 2015·Granted Mar 1, 2016·27 cites·16 claims
- 1298US8667785B2Catalysed substrate monolithJOHNSON MATTHEY PLC·Filed 2012·Granted Mar 11, 2014·75 cites·22 claims
- 1398US7998443B2Small pore molecular sieve supported copper catalysts durable against lean/rich aging for the reduction of nitrogen oxidesJOHNSON MATTHEY PLC·Filed 2010·Granted Aug 16, 2011·31 cites·20 claims
- 1498US7264785B2Selective catalytic reductionJOHNSON MATTHEY PLC·Filed 2002·Granted Sep 4, 2007·157 cites·86 claims
- 1598US6753294B1Catalytic wall-flow filterJOHNSON MATTHEY PLC·Filed 2000·Granted Jun 22, 2004·193 cites·24 claims
- 1698US5021409AAntiviral cyclic polyaminesJOHNSON MATTHEY PLC·Filed 1989·Granted Jun 4, 1991·170 cites·9 claims
- 1797US11794169B2Oxidation catalyst for a compression ignition engineJOHNSON MATTHEY PLC·Filed 2020·Granted Oct 24, 2023·4 cites·15 claims
- 1897US11338245B2Diesel oxidation catalyst and exhaust systemJOHNSON MATTHEY PLC·Filed 2019·Granted May 24, 2022·8 cites·22 claims
- 1997US10821401B2Diesel oxidation catalyst and exhaust systemJOHNSON MATTHEY PLC·Filed 2018·Granted Nov 3, 2020·8 cites·9 claims
- 2097US10688475B2Catalysed substrate monolithJOHNSON MATTHEY PLC·Filed 2019·Granted Jun 23, 2020·8 cites·30 claims
- 2197US10376867B2Oxidation catalyst for internal combustion engine exhaust gas treatmentJOHNSON MATTHEY PLC·Filed 2017·Granted Aug 13, 2019·9 cites·18 claims
- 2297US10322372B2NH3 overdosing-tolerant SCR catalystJOHNSON MATTHEY PLC·Filed 2018·Granted Jun 18, 2019·10 cites·12 claims
- 2397US10207254B2Catalysed substrate monolithJOHNSON MATTHEY PLC·Filed 2017·Granted Feb 19, 2019·10 cites·9 claims
- 2497US10201807B2Ammonia slip catalyst designed to be first in an SCR systemJOHNSON MATTHEY PLC·Filed 2016·Granted Feb 12, 2019·22 cites·13 claims
- 2597US9878287B2NH3 overdosing-tolerant SCR catalystJOHNSON MATTHEY PLC·Filed 2016·Granted Jan 30, 2018·11 cites·19 claims
- 2697US9868115B2Oxidation catalyst for internal combustion engine exhaust gas treatmentJOHNSON MATTHEY PLC·Filed 2015·Granted Jan 16, 2018·13 cites·21 claims
- 2797US9849421B2Catalytic filter having a soot catalyst and an SCR catalystJOHNSON MATTHEY PLC·Filed 2016·Granted Dec 26, 2017·11 cites·28 claims
- 2897US9789441B2Single or dual layer ammonia slip catalystJOHNSON MATTHEY PLC·Filed 2016·Granted Oct 17, 2017·20 cites·15 claims
- 2997US9757718B2Ammonia slip catalyst having platinum impregnated on high porosity substratesJOHNSON MATTHEY PLC·Filed 2015·Granted Sep 12, 2017·12 cites·26 claims
- 3097US9751080B2PGM catalyst for treating exhaust gasJOHNSON MATTHEY PLC·Filed 2015·Granted Sep 5, 2017·12 cites·20 claims
- 3197US9707542B2Oxidation catalyst for a compression ignition engineJOHNSON MATTHEY PLC·Filed 2014·Granted Jul 18, 2017·23 cites·32 claims
- 3297US9597661B2Catalysed substrate monolithJOHNSON MATTHEY PLC·Filed 2015·Granted Mar 21, 2017·16 cites·18 claims
- 3397US9579638B2Ammonia slip catalystJOHNSON MATTHEY PLC·Filed 2014·Granted Feb 28, 2017·21 cites·8 claims
- 3497US9352279B2Filter substrate comprising three-way catalystJOHNSON MATTHEY PLC·Filed 2013·Granted May 31, 2016·27 cites·16 claims
- 3597US9046022B2Catalysed substrate monolithJOHNSON MATTHEY PLC·Filed 2014·Granted Jun 2, 2015·21 cites·46 claims
- 3697US9040003B2Three way catalyst comprising extruded solid bodyJOHNSON MATTHEY PLC·Filed 2013·Granted May 26, 2015·31 cites·22 claims
- 3797US9034286B2Oxidation catalyst for treating the exhaust gas of a compression ignition engineJOHNSON MATTHEY PLC·Filed 2013·Granted May 19, 2015·32 cites·16 claims
- 3897US8957240B2Method for the purification of prostaglandinsJOHNSON MATTHEY PLC·Filed 2013·Granted Feb 17, 2015·35 cites·13 claims
- 3997US8668891B2Exhaust system for a lean-burn IC engine comprising a PGM component and a SCR catalystJOHNSON MATTHEY PLC·Filed 2012·Granted Mar 11, 2014·27 cites·12 claims
- 4097US8012439B2FilterJOHNSON MATTHEY PLC·Filed 2010·Granted Sep 6, 2011·48 cites·34 claims
- 4196US11845064B2Composite, zoned oxidation catalyst for a compression ignition internal combustion engineJOHNSON MATTHEY PLC·Filed 2020·Granted Dec 19, 2023·7 cites·16 claims
- 4296US11167246B2Diesel oxidation catalyst and exhaust systemJOHNSON MATTHEY PLC·Filed 2018·Granted Nov 9, 2021·6 cites·25 claims
- 4396US10926221B2Single brick SCR/ASC/PNA/DOC close-coupled catalystJOHNSON MATTHEY PLC·Filed 2018·Granted Feb 23, 2021·9 cites·24 claims
- 4496US10105692B2Zoned ammonia slip catalyst for use in combustion turbinesJOHNSON MATTHEY PLC·Filed 2016·Granted Oct 23, 2018·15 cites·20 claims
- 4596US9975767B2Catalyst arrangementJOHNSON MATTHEY PLC·Filed 2015·Granted May 22, 2018·27 cites·28 claims
- 4696US9828896B2Exhaust system with a modified lean NOx trapJOHNSON MATTHEY PLC·Filed 2015·Granted Nov 28, 2017·14 cites·19 claims
- 4796US9789443B2Filter substrate comprising three-way catalystJOHNSON MATTHEY PLC·Filed 2016·Granted Oct 17, 2017·13 cites·24 claims
- 4896US9656209B2Three-way catalyst and its use in exhaust systemsJOHNSON MATTHEY PLC·Filed 2016·Granted May 23, 2017·20 cites·10 claims
- 4996US9199195B2Small pore molecular sieve supported copper catalysts durable against lean/rich aging for the reduction of nitrogen oxidesJOHNSON MATTHEY PLC·Filed 2014·Granted Dec 1, 2015·9 cites·12 claims
- 5096US8906329B2Zeolite catalyst containing metalJOHNSON MATTHEY PLC·Filed 2013·Granted Dec 9, 2014·19 cites·20 claims
Showing the top 50 of 1,196 patent records by PatentIndex Score.
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