ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,397,186, issued on Aug. 26, was assigned to TIANJIN FIRE SCIENCE AND TECHNOLOGY RESEARCH INSTITUTE OF MEM (Tianjin, China).

"Solid gel foam fire extinguishing agent, and preparation method and use thereof" was invented by Shaoyu Zhang (Tianjin, China), Dong Lyu (Tianjin, China) and Jingyu Zhu (Tianjin, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A solid gel foam fire extinguishing agent includes a material A and a material B; the material A includes the following components in mass percentage: 18% to 25% of an inorganic silicate, 0.25% of sodium carboxymethyl cellulose, 0.25% of sodium alginate, 0.1% to 0.5% of xanthan gum, 0.5% to 1% of polyvi...