US Patent Issued to CERATIZIT Luxembourg on March 3 for "Tungsten carbide-based cemented hard material" (Luxembourger Inventors)

ALEXANDRIA, Va., March 3 -- United States Patent no. 12,565,696, issued on March 3, was assigned to CERATIZIT Luxembourg SARL (Mamer, Luxembourg).

"Tungsten carbide-based cemented hard material" was invented by Claudio Bertalan (Mamer, Luxembourg), Ralph Useldinger (Mamer, Luxembourg) and Rolf Koesters (Mamer, Luxembourg).

According to the abstract* released by the U.S. Patent & Trademark Office: "A tungsten-carbide-based hard material includes the following components: tungsten carbide with an average particle size of 0.1-1.3 micro metre; 1.0-5.0 wt. % (Co+Ni), with a ratio of Co/(Co+Ni) in wt. % of 0.4less than equal toCo/(Co+Ni)less than equal to0.95; 0.1-1.0 wt. % Cr, with a ratio of Cr to (Co+Ni) in wt. % of 0.05 Cr/(Co+Ni) 0.20; 0.0...