US Patent Issued to Huaqiao University, Sanming University on May 20 for "Half-cast mark identification and damaged flatness evaluation and classification method for blastholes in tunnel blasting" (Chinese Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,307,641, issued on May 20, was assigned to Huaqiao University (Quanzhou, China) and Sanming University (Sanming, China).

"Half-cast mark identification and damaged flatness evaluation and classification method for blastholes in tunnel blasting" was invented by Jin Yu (Xiamen, China), Xiaoqiang Fu (Xiamen, China), Wei Yao (Xiamen, China), Yanyan Cai (Xiamen, China) and Shiyu Liu (Xiamen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a half-cast mark identification and damaged flatness evaluation and classification method for blastholes in tunnel blasting, including the following steps: S1-2: photographing first an...