Inventor
LIU DONGXIA
US21 patents
⚠️ This page may combine multiple inventors who share the name “LIU DONGXIA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
JOHNSON MATTHEY PLC
11 patentsUS10926221B2Feb 23, 2021
Single brick SCR/ASC/PNA/DOC close-coupled catalyst
JOHNSON MATTHEY PLC9 citations86
US10005075B2Jun 26, 2018
Passive NOx adsorber
JOHNSON MATTHEY PLC7 citations84
US10669910B2Jun 2, 2020
Platinum group metal and base metal on a molecular sieve for PNA-SCR-ASC close-coupled system
JOHNSON MATTHEY PLC10 citations81
US10618003B2Apr 14, 2020
Noble metal-molecular sieve catalysts
JOHNSON MATTHEY PLC2 citations71
US12172149B2Dec 24, 2024
Tri-metal PGM catalysts for gasoline engine exhaust gas treatments
JOHNSON MATTHEY PLC4 citations69
US11857925B2Jan 2, 2024
Single brick SCR/ASC/PNA/DOC close-coupled catalyst
JOHNSON MATTHEY PLC0 citations62
US11185854B2Nov 30, 2021
Cold start catalyst and its use in exhaust systems
JOHNSON MATTHEY PLC1 citations62
US12343707B2Jul 1, 2025
Catalyst article having high local rhodium concentration
JOHNSON MATTHEY PLC0 citations58
US12569829B2Mar 10, 2026
Catalysts for gasoline engine exhaust gas treatments
JOHNSON MATTHEY PLC0 citations57
US11786885B2Oct 17, 2023
Sulfur-containing organic compound assisted metal nanoparticle synthesis for three-way catalysis application
JOHNSON MATTHEY PLC1 citations51
US12551869B2Feb 17, 2026
Sulfur-containing organic compound assisted metal nanoparticle synthesis for three-way catalysis application
JOHNSON MATTHEY PLC0 citations50
UNIV MARYLAND
5 patentsUS10525407B2Jan 7, 2020
Systems, methods, and devices for direct conversion of methane
UNIV MARYLAND3 citations72
US12234199B2Feb 25, 2025
Systems, methods, and devices for methane conversion via gas recycling
UNIV MARYLAND0 citations60
US11878953B2Jan 23, 2024
Systems, methods, and devices for methane conversion via gas recycling
UNIV MARYLAND0 citations60
US12558662B2Feb 24, 2026
High-temperature shock heating for thermochemical reactions
UNIV MARYLAND0 citations51
US11806706B2Nov 7, 2023
Direct non-oxidative methane conversion in a catalytic wall reactor
UNIV MARYLAND0 citations41