ALEXANDRIA, Va., May 12 -- United States Patent no. 12,624,630, issued on May 12, was assigned to Northeastern University (Shenyang City, China).

"Long-term monitoring apparatus and method for surrounding rock fracture evolution process triggered by multiple-source dynamic disturbances" was invented by Benguo He (Shenyang City, China), Xiangrui Meng (Shenyang City, China), Xiating Feng (Shenyang City, China), Jie Wang (Shenyang City, China), Hongpu Li (Shenyang City, China) and Hengyuan Zhang (Shenyang City, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are a long-term monitoring apparatus and method for surrounding rock fracture evolution process triggered by multiple-source dynamic disturba...