Patents by Inventor Paola Mariani

Paola Mariani 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).

  • High-chromium heat-resistant steel
    Patent number: 11105501
    Abstract: The present invention provides a high-chromium heat-resistant steel. The steel contains in mass %, C: 0.08% to 0.13%; Si: 0.15% to 0.45%; Mn: 0.1% to 1.0%; Ni: 0.01% to 0.5%; Cr: 10.0% to 11.5%; Mo: 0.3% to 0.6%; V: 0.10% to 0.25%; Nb: 0.01% to 0.06%; N: 0.015% to 0.07%; B: ?0.005%, and Al: ?0.04%. The balance consists of Fe and inevitable impurity elements. The steel shows a martensitic microstructure.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: August 31, 2021
    Assignee: Tenaris Connections B.V.
    Inventors: Yusuke Minami, Tatsuo Ono, Giuseppe Cumino, Paola Mariani
  • HIGH-CHROMIUM HEAT-RESISTANT STEEL
    Publication number: 20160102856
    Abstract: The present invention provides a high-chromium heat-resistant steel. The steel contains in mass %, C: 0.08% to 0.13%; Si: 0.15% to 0.45%; Mn: 0.1% to 1.0%; Ni: 0.01% to 0.5%; Cr: 10.0% to 11.5%; Mo: 0.3% to 0.6%; V: 0.10% to 0.25%; Nb: 0.01% to 0.06%; N: 0.015% to 0.07%; B: ?0.005%, and Al: ?0.04%. The balance consists of Fe and inevitable impurity elements. The steel shows a martensitic microstructure.
    Type: Application
    Filed: June 24, 2014
    Publication date: April 14, 2016
    Applicant: TENARIS CONNECTIONS LIMITED
    Inventors: Yusuke Minami, Tatsuo Ono, Giuseppe Cumino, Paola Mariani