Patents by Inventor Claudio Bertalan

Claudio Bertalan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Cobalt-free tungsten carbide-based hard-metal material
    Patent number: 12584202
    Abstract: A cobalt-free, tungsten carbide-based cemented carbide material includes 70-97 wt % of hard substance particles formed at least predominantly by tungsten carbide, and 3-30 wt % of a metallic binder which is an iron-nickel-based alloy. The iron-nickel-based alloy includes at least iron, nickel and chromium, with a ratio of Fe to (Ni+Fe) of 0.70?Fe/(Fe+Ni)?0.95; a Cr content of 0.5 wt %?Cr/(Fe+Ni+Cr) and (i) for the range 0.7?Fe/(Fe+Ni)?0.83: Cr/(Fe+Ni+Cr)?(?0.625*(Fe/(Fe+Ni))+3.2688) wt %; (ii) for the range 0.83?Fe/(Fe+Ni)?0.85: Cr/(Fe+Ni+Cr)?(?27.5*(Fe/(Fe+Ni))+25.575) wt %; and (iii) for the range 0.85?Fe/(Fe+Ni)?0.95: Cr/(Fe+Ni+Cr)?2.2 wt %; an optional Mo content, an optional V content, and unavoidable impurities up to in total not more than 1 wt % of the cemented carbide material.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: March 24, 2026
    Assignee: CERATIZIT Luxembourg S.a.r.l.
    Inventors: Ralph Useldinger, Claudio Bertalan, Leonel Pereira Coelho
  • Tungsten carbide-based cemented hard material
    Patent number: 12565696
    Abstract: A tungsten-carbide-based hard material includes the following components: tungsten carbide with an average particle size of 0.1-1.3 ?m; 1.0-5.0 wt. % (Co+Ni), with a ratio of Co/(Co+Ni) in wt. % of 0.4?Co/(Co+Ni)?0.95; 0.1-1.0 wt. % Cr, with a ratio of Cr to (Co+Ni) in wt. % of 0.05 Cr/(Co+Ni) 0.20; 0.01-0.3 wt. % Mo; and 0.02-0.45 wt. % Me, where Me represents one or more elements from the group Ta, Nb, Hf and Ti, preferably Ta and/or Nb; and wherein 0.01?Me/(Co+Ni)?0.13.
    Type: Grant
    Filed: October 13, 2020
    Date of Patent: March 3, 2026
    Assignee: CERATIZIT Luxembourg S.a.r.l.
    Inventors: Claudio Bertalan, Ralph Useldinger, Rolf Koesters
  • COBALT-FREE TUNGSTEN CARBIDE-BASED HARD-METAL MATERIAL
    Publication number: 20230151461
    Abstract: A cobalt-free, tungsten carbide-based cemented carbide material includes 70-97 wt % of hard substance particles formed at least predominantly by tungsten carbide, and 3-30 wt % of a metallic binder which is an iron-nickel-based alloy. The iron-nickel-based alloy includes at least iron, nickel and chromium, with a ratio of Fe to (Ni+Fe) of 0.70?Fe/(Fe+Ni)?0.95; a Cr content of 0.5 wt %?Cr/(Fe+Ni+Cr) and (i) for the range 0.7?Fe/(Fe+Ni)?0.83: Cr/(Fe+Ni+Cr)?(?0.625*(Fe/(Fe+Ni))+3.2688) wt %; (ii) for the range 0.83?Fe/(Fe+Ni)?0.85: Cr/(Fe+Ni+Cr)?(?27.5*(Fe/(Fe+Ni))+25.575) wt %; and (iii) for the range 0.85?Fe/(Fe+Ni)?0.95: Cr/(Fe+Ni+Cr)?2.2 wt %; an optional Mo content, an optional V content, and unavoidable impurities up to in total not more than 1 wt % of the cemented carbide material.
    Type: Application
    Filed: March 17, 2021
    Publication date: May 18, 2023
    Inventors: Ralph Useldinger, Claudio Bertalan, Leonel Pereira Coelho
  • TUNGSTEN CARBIDE-BASED CEMENTED HARD MATERIAL
    Publication number: 20220411904
    Abstract: A tungsten-carbide-based hard material includes the following components: tungsten carbide with an average particle size of 0.1-1.3 ?m; 1.0-5.0 wt. % (Co+Ni), with a ratio of Co/(Co+Ni) in wt. % of 0.4?Co/(Co+Ni)?0.95; 0.1-1.0 wt. % Cr, with a ratio of Cr to (Co+Ni) in wt. % of 0.05 Cr/(Co+Ni) 0.20; 0.01-0.3 wt. % Mo; and 0.02-0.45 wt. % Me, where Me represents one or more elements from the group Ta, Nb, Hf and Ti, preferably Ta and/or Nb; and wherein 0.01?Me/(Co+Ni)?0.13.
    Type: Application
    Filed: October 13, 2020
    Publication date: December 29, 2022
    Inventors: Claudio Bertalan, Ralph Useldinger, Rolf Koesters