Inventor
FEDEYKO JOSEPH
US29 patents
Patents
29 patentsUS10322372B2Jun 18, 2019
NH3 overdosing-tolerant SCR catalyst
JOHNSON MATTHEY PLC10 citations84
US9878287B2Jan 30, 2018
NH3 overdosing-tolerant SCR catalyst
JOHNSON MATTHEY PLC11 citations84
US10500574B2Dec 10, 2019
LTA catalysts having extra-framework iron and/or manganese for treating exhaust gas
JOHNSON MATTHEY PLC6 citations83
US10376838B2Aug 13, 2019
Oxidation catalyst for hydrocarbons produced by an internal combustion engine
JOHNSON MATTHEY PLC7 citations83
US11007513B2May 18, 2021
Zeolite synthesis with a fluoride source
JOHNSON MATTHEY PLC1 citations72
US10807080B2Oct 20, 2020
Synthesis of metal promoted zeolite catalyst
JOHNSON MATTHEY PLC2 citations72
US10799853B2Oct 13, 2020
Synthesis of AEI and Cu-AEI zeolites
JOHNSON MATTHEY PLC2 citations72
US10682635B2Jun 16, 2020
Zeolite synthesis with a fluoride source
JOHNSON MATTHEY PLC3 citations72
US10766023B2Sep 8, 2020
Zeolite synthesis with alkaline earth metal
JOHNSON MATTHEY PLC2 citations71
US10500573B2Dec 10, 2019
Zeolite synthesis with alkaline earth metal
JOHNSON MATTHEY PLC3 citations71
US10399066B2Sep 3, 2019
JMZ-5 and JMZ-6 zeolites having an SZR-type crystal structure, and methods of their preparation and use
JOHNSON MATTHEY PLC2 citations69
US11857925B2Jan 2, 2024
Single brick SCR/ASC/PNA/DOC close-coupled catalyst
JOHNSON MATTHEY PLC0 citations62
US12030042B2Jul 9, 2024
Zeolite synthesis with alkaline earth metal
JOHNSON MATTHEY PLC0 citations61
US11712685B2Aug 1, 2023
Ammonia slip catalyst with in-situ PT fixing
JOHNSON MATTHEY PLC1 citations61
US11452996B2Sep 27, 2022
Zeolite synthesis with a fluoride source
JOHNSON MATTHEY PLC0 citations61
US10737252B2Aug 11, 2020
High silica AEI zeolite
JOHNSON MATTHEY PLC1 citations61
US11541379B2Jan 3, 2023
Bimetallic Cu/Mn catalysts for selective catalytic reduction
JOHNSON MATTHEY PLC0 citations60
US11351526B2Jun 7, 2022
Zeolite synthesis with alkaline earth metal
JOHNSON MATTHEY PLC0 citations60
US12544743B2Feb 10, 2026
Catalytic material for treating an exhaust gas produced by a natural gas engine
JOHNSON MATTHEY PLC0 citations58
US11980868B2May 14, 2024
Method for the treatment of an exhaust gas and an HVAC system
JOHNSON MATTHEY PLC0 citations58
US11192096B2Dec 7, 2021
High silica AEI zeolite
JOHNSON MATTHEY PLC0 citations57
US11278874B2Mar 22, 2022
Enhanced introduction of extra-framework metal into aluminosilicate zeolites
JOHNSON MATTHEY PLC0 citations52
US10414665B2Sep 17, 2019
Synthesis of AFX zeolite
JOHNSON MATTHEY PLC0 citations51
US11779913B2Oct 10, 2023
Ammonia slip catalyst with in-situ PT fixing
JOHNSON MATTHEY PLC0 citations50
US12305557B2May 20, 2025
Compressed natural gas combustion and exhaust system
JOHNSON MATTHEY PLC0 citations48
US10722872B2Jul 28, 2020
JMZ-5 and JMZ-6, zeolites having an SZR-type crystal structure, and methods of their preparation and use
JOHNSON MATTHEY PLC0 citations48
US12011690B2Jun 18, 2024
Exhaust gas treatment system
JOHNSON MATTHEY PLC0 citations45
US12427475B2Sep 30, 2025
Exhaust gas treatment system for an ammonia-containing exhaust gas
JOHNSON MATTHEY PLC0 citations38
US10807079B2Oct 20, 2020
Oxidation catalyst for a stoichiometric natural gas engine
JOHNSON MATTHEY PLC0 citations37