Inventor
HAN YANCONG
CN3 patents
Patents
3 patentsUS11085245B2Aug 10, 2021
Multi-path combined high-low voltage plasma rock-breaking drill bit, drill bit apparatus and drilling method
UNIV CHINA PETROLEUM EAST CHINA2 citations69
US11293231B2Apr 5, 2022
Multi-path combined high-low voltage plasma drilling method, drill bit for drilling and drill bit apparatus for drilling
UNIV CHINA PETROLEUM EAST CHINA0 citations60
US11268326B2Mar 8, 2022
Multi-path combined high-low voltage plasma drilling power source and drillling system
UNIV CHINA PETROLEUM EAST CHINA0 citations48