US Patent Issued to WACKER CHEMIE on Dec. 30 for "Process for producing polycrystalline silicon granulate" (German Inventors)

ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,509,353, issued on Dec. 30, was assigned to WACKER CHEMIE AG (Munich).

"Process for producing polycrystalline silicon granulate" was invented by Michael Gottanka (Neuoetting, Germany), Harald Hertlein (Burghausen, Germany) and Benedikt Koeninger (Fuerth, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "Silicon granulate is produced in a fluidized bed reactor having a fluidized bed region fluidized by a gas flow and heated by a heating apparatus. Seed particles and a feed gas including hydrogen and silane and/or halosilane is continuously supplied, and elemental silicon is deposited on the seed particles to form the silicon granulate, which is disc...