ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,522,508, issued on Jan. 13, was assigned to Porner Ingenieurgesellschaft m.b.H. (Grimma, Germany).
"Sustainable silicates and methods for their extraction" was invented by Gerhard Bacher (Wels, Austria), Holger Henze (Grimma, Germany), Dirk Fliegner (Grimma, Germany), Christoph Manitz (Leipzig, Germany), Sebastian Grahl (Wehlen, Germany) and William H. Mullee (Ellensburg, Wash.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Liquid silicate products derived from processed organic plant matter (112), such as rice hulls, have improved purity and properties for use in the production of higher purity amorphous silica compositions (180). The liquid silicate c...