Inventor

ZHU HANHUA

CN2 patents

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

UNIV ZHEJIANG CITY COLLEGE

1 patent

US12078065B2Sep 3, 2024

Telescopic device and telescopic annular tunnel steel arch

UNIV ZHEJIANG CITY COLLEGE0 citations38

NINGBO LANGDA ENGINEERING TECH CO LTD

1 patent

US12467360B2Nov 11, 2025

Device and method for adjusting tunnel support force

NINGBO LANGDA ENGINEERING TECH CO LTD0 citations35