US Patent Issued to SAFEKEY Engineering Technology (Zhengzhou), Huizhou Mingsheng Chemical Materials on Oct. 14 for "Silicate-modified polymer grouting material for leakage plugging" (Chinese Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,441,921, issued on Oct. 14, was assigned to SAFEKEY Engineering Technology (Zhengzhou) Ltd. (Henan, China) and Huizhou Mingsheng Chemical Materials Co. LTD. (Guangdong, China).

"Silicate-modified polymer grouting material for leakage plugging" was invented by Peng Zhao (Henan, China), Hongyuan Fang (Henan, China), Lei Wang (Guangdong, China), Mingrui Du (Guangdong, China), Yanhui Pan (Henan, China) and Hui Liu (Henan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A silicate-modified polymer grouting material for leakage plugging is provided, which belongs to the technical field of silicate modification, includes 60% by weight of silicate-modified...