Inventor

LIU CHENGHONG

CN3 patents

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

LIU CHENGHONG

1 patent

USD953787SJun 7, 2022

Storage rack

LIU CHENGHONG4 citations58

POLY CHANGDA ENG CO LTD

1 patent

US12522990B1Jan 13, 2026

Bridge sliding device and a bridge construction system

POLY CHANGDA ENG CO LTD0 citations41

CHINA RAILWAY NO 3 ENG GROUP

1 patent

US11655600B2May 23, 2023

Method for installing steel tube arches

CHINA RAILWAY NO 3 ENG GROUP0 citations35