Inventor

LIU XINQIANG

CN2 patents

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

XU SHIFENG

1 patent

US8671845B2Mar 18, 2014

Central suspension device, wagon bogie and express railway wagon

XU SHIFENG3 citations50

CRRC QIQIHAR ROLLING STOCK CO LTD

1 patent

US10710613B2Jul 14, 2020

Railway freight car bogie

CRRC QIQIHAR ROLLING STOCK CO LTD0 citations29