Inventor

LI YUESHENG

CN3 patents

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

CHANGCHUN APPLIED CHEMISTRY

1 patent

US6800774B2Oct 5, 2004

Catalysts used for olefine polymerization and the preparation thereof

CHANGCHUN APPLIED CHEMISTRY4 citations60

ZHEJIANG YOUYI MEDICAL APPARATUS CO LTD

1 patent

USD752744SMar 29, 2016

Video laryngoscope

ZHEJIANG YOUYI MEDICAL APPARATUS CO LTD5 citations59

ZHUHAI BRANCH GUANGDONG INSTITUTE OF SPECIAL EQUIPMENT INSPECTION AND RES

1 patent

US10723590B2Jul 28, 2020

Device and method for detecting compression and reposition performance of hydraulic buffer for elevator

ZHUHAI BRANCH GUANGDONG INSTITUTE OF SPECIAL EQUIPMENT INSPECTION AND RES1 citations51