Patents by Inventor Chirag R. Mahimkar

Chirag R. Mahimkar 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).

  • Ultra-high strength hot-rolled steel with toughness and method of making same
    Patent number: 11802327
    Abstract: A method is used to fabricate a hot-rolled steel having a yield strength greater than 550 MPa and an impact toughness of at least 27 J at a temperature of -40° F. In one embodiment, the yield strength is greater than 690 MPa. The method includes melting steel to create melted steel. The melted steel is poured into a mold. The metal steel is continuously cast into a steel slab. The steel slab is heated to maintain a predetermined temperature. The steel slab is rolled to reduce the thickness to a predetermined thickness to create a hot-rolled steel sheet.
    Type: Grant
    Filed: October 2, 2020
    Date of Patent: October 31, 2023
    Assignee: Big River Steel, LLC
    Inventors: Amar K De, Denis Hennessy, Chirag R. Mahimkar
  • Ultra-High Strength Hot-Rolled Steel with Toughness and Method of Making Same
    Publication number: 20230295785
    Abstract: A method is used to fabricate a hot-rolled steel having a yield strength greater than 550 MPa and an impact toughness of at least 27 J at a temperature of ?40° F. In one embodiment, the yield strength is greater than 690 MPa. The method includes melting steel to create melted steel. The melted steel is poured into a mold. The metal steel is continuously cast into a steel slab. The steel slab is heated to maintain a predetermined temperature. The steel slab is rolled to reduce the thickness to a predetermined thickness to create a hot-rolled steel sheet.
    Type: Application
    Filed: May 26, 2023
    Publication date: September 21, 2023
    Applicant: Big River Steel, LLC
    Inventors: Amar K. De, Denis Hennessy, Chirag R. Mahimkar