US Patent Issued to Omya International on Feb. 24 for "Process of manufacturing hollow spherical glass particles" (German Inventors)

ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,559,405, issued on Feb. 24, was assigned to Omya International AG (Oftringen, Switzerland).

"Process of manufacturing hollow spherical glass particles" was invented by Gerhard Olbert (Ludwigshafen am Rhein, Germany), Laila Raquel Pasin E Matos (Ludwigshafen am Rhein, Germany) and Ekaterina Helwig (Ludwigshafen am Rhein, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "Process for the preparation of hollow spherical glass particles comprising at least SiO2, Al2O3, and an alkali metal oxide, wherein the process comprises the preparation of precursor particles comprising at least SiO2, Al2O3, and an alkali metal oxide by mixing the starting materials...