Inventor

QIAO YANHUA

CN3 patents

Patents

3 patents

US12590540B2Mar 31, 2026

Bolter miner and tunneling system

CCTEG TAIYUAN RES INSTITUTE0 citations43

US12565837B2Mar 3, 2026

Tunnel tunneling system

CCTEG TAIYUAN RES INSTITUTE0 citations41

US12442298B2Oct 14, 2025

Bolter miner and tunneling system

CCTEG TAIYUAN RES INSTITUTE0 citations41