Patents by Inventor Tomas ANTONSSON

Tomas ANTONSSON 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).

  • Patent number: 11306378
    Abstract: The present disclosure relates to a duplex stainless steel comprising in weight % (wt %): C less than 0.03; Si less than 0.60; Mn 0.40 to 2.00; P less than 0.04; S less than or equal to 0.01; Cr more than 30.00 to 33.00; Ni 6.00 to 10.00; Mo 1.30 to 2.90; N 0.15 to 0.28; Cu 0.60 to 2.20; Al less than 0.05; balance Fe and unavoidable impurities. The present disclosure also relates to a component or a construction material comprising the duplex stainless steel. Additionally, the present disclosure also relates to a process for manufacturing a component comprising said duplex stainless steel.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: April 19, 2022
    Assignee: Sandvik Intellectual Property AB
    Inventors: Tomas Antonsson, Lars Nylöf
  • Patent number: 11047028
    Abstract: The present disclosure relates to a drill component having a martensitic stainless steel which has good corrosion resistance in combination with optimized and well-balanced mechanical properties, such as high hardness, resistance against wear and abrasion, high tensile strength and high impact toughness.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: June 29, 2021
    Assignee: Sandvik Intellectual Property AB
    Inventors: Anna Wennberg, Tomas Antonsson, Lars Nylof
  • Patent number: 10941469
    Abstract: The present disclosure relates to a martensitic stainless steel suitable for rock drill steel rods. Furthermore, the present disclosure also relates to the use of the martensitic stainless steel and to products manufactured thereof, especially drill rods.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: March 9, 2021
    Assignee: AB Sandvik Materials Technology
    Inventors: Anna Wennberg, Tomas Antonsson, Lars Nylof
  • Publication number: 20210002750
    Abstract: The present disclosure relates to a duplex stainless steel comprising in weight % (wt %): C less than 0.03; Si less than 0.60; Mn 0.40 to 2.00; P less than 0.04; S less than or equal to 0.01; Cr more than 30.00 to 33.00; Ni 6.00 to 10.00; Mo 1.30 to 2.90; N 0.15 to 0.28; Cu 0.60 to 2.20; Al less than 0.05; balance Fe and unavoidable impurities. The present disclosure also relates to a component or a construction material comprising the duplex stainless steel. Additionally, the present disclosure also relates to a process for manufacturing a component comprising said duplex stainless steel.
    Type: Application
    Filed: February 14, 2019
    Publication date: January 7, 2021
    Applicant: Sandvik Intellectual Property AB
    Inventors: Tomas ANTONSSON, Lars NYLÖF
  • Publication number: 20180209024
    Abstract: The present disclosure relates to a drill component having a martensitic stainless steel which has good corrosion resistance in combination with optimized and well-balanced mechanical properties, such as high hardness, resistance against wear and abrasion, high tensile strength and high impact toughness.
    Type: Application
    Filed: July 14, 2016
    Publication date: July 26, 2018
    Inventors: Anna WENNBERG, Tomas ANTONSSON, Lars NYLOF
  • Publication number: 20180209023
    Abstract: The present disclosure relates to a martensitic stainless steel suitable for rock drill steel rods. Furthermore, the present disclosure also relates to the use of the martensitic stainless steel and to products manufactured thereof, especially drill rods.
    Type: Application
    Filed: June 14, 2016
    Publication date: July 26, 2018
    Inventors: Anna WENNBERG, Tomas ANTONSSON, Lars NYLOF
  • Publication number: 20180105905
    Abstract: A bainitic steel comprising, in weight % (wt %) C: 0.16-0.23, Si: 0.8-1.0, Mo: 0.67-0.9, Cr: 1.10-1.30, V: 0.18-0.4, Ni: 1.60-2.0, Mn: 0.65-0.9, P: 50.020, S: 50.02, Cu: <0.20, N: 0.005-0.012, balance Fe and unavoidable impurities.
    Type: Application
    Filed: December 12, 2017
    Publication date: April 19, 2018
    Applicant: SANDVIK INTELLECTUAL PROPERTY AB
    Inventors: Johan LINDEN, Tomas ANTONSSON
  • Publication number: 20150344997
    Abstract: A bainitic steel comprising, in weight % (wt %): C: 0.16-0.23, Si: 0.8-1.0, Mo: 0.67-0.9, Cr: 1.10-1.30, V: 0.18-0.4, Ni: 1.60-2.0, Mn: 0.65-0.9, P: ?0.020, S: ?0.02, Cu: <0.20, N: 0.005-0.012 balance Fe and unavoidable impurities.
    Type: Application
    Filed: December 16, 2013
    Publication date: December 3, 2015
    Inventors: Johan LINDEN, Tomas ANTONSSON