Inventor

WAN YAPING

CN3 patents

⚠️ This page may combine multiple inventors who share the name “WAN YAPING”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

JOHNSON MATTHEY SHANGHAI CHEMICALS LTD

2 patents

US11577234B2Feb 14, 2023

Three-zone two-layer TWC catalyst in gasoline waste gas applications

JOHNSON MATTHEY SHANGHAI CHEMICALS LTD7 citations80

US11110447B2Sep 7, 2021

Three-zone two-layer TWC catalyst in gasoline waste gas applications

JOHNSON MATTHEY SHANGHAI CHEMICALS LTD4 citations68

JOHNSON MATTHEY PLC

1 patent

US12544738B2Feb 10, 2026

Anionic PGM carboxylate assisted PGM nanoparticle synthesis for exhaust gas treatment applications

JOHNSON MATTHEY PLC0 citations51