Inventor

MA DAIHUI

CN2 patents

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

CCTEG CHONGQING RES INSTITUTE CO LTD

1 patent

US12560028B2Feb 24, 2026

Coal mine automatic directional drill

CCTEG CHONGQING RES INSTITUTE CO LTD0 citations44

CCTEG CHONGQING RES INSTITUTE

1 patent

US12448847B2Oct 21, 2025

Coal mine intelligent directional drill and drilling method therefor

CCTEG CHONGQING RES INSTITUTE0 citations39