Inventor

SANG SHENGYUAN

CN2 patents

Patents

2 patents

US12565837B2Mar 3, 2026

Tunnel tunneling system

CCTEG TAIYUAN RES INSTITUTE0 citations41

US12442298B2Oct 14, 2025

Bolter miner and tunneling system

CCTEG TAIYUAN RES INSTITUTE0 citations41