ALEXANDRIA, Va., April 15 -- United States Patent no. 12,600,011, issued on April 14, was assigned to HUAQIAO UNIVERSITY (Quanzhou, China).

"Method for preparing flexible sol-gel polishing block" was invented by Jing Lu (Xiamen, China), Xipeng Xu (Xiamen, China), Lei Yang (Xiamen, China) and Yun Shen (Xiamen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for preparing a flexible sol-gel polishing block, the method comprises: (1) adding a gel agent and a 20 micro metre diamond abrasive into deionized water, and stirring to even to obtain a first material; (2) adding carbon fiber into the first material obtained in the step 1, and mixing to even to obtain a second material; (3) injecting the se...