Patents by Inventor Rikard Robertsson

Rikard Robertsson 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).

  • Hot work tool steel
    Patent number: 11131012
    Abstract: The invention relates hot work tool steel. The steel comprises the following main components (in wt. %): C 0.27-0.38 Si 0.10-0.35 Mn 0.2-0.7 Cr 4.5-5.5 Mo 2.05-2.90 V 0.4-0.6 N 0.01-0.12 H ?0.0004 S ?0.0015 balance optional elements, iron and impurities.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: September 28, 2021
    Assignee: UDDEHOLMS AB
    Inventors: Anna Medvedeva, Jerker Andersson, Rikard Robertsson, Cherin Nilsson, Sebastian Ejnermark
  • Cold work tool steel
    Patent number: 10472704
    Abstract: The invention relates cold work tool steel. The steel includes the following main components (in wt. %): C 2.2-2.4, Si 0.1-0.55, Mn 0.2-0.8, Cr 4.1-5.1, Mo 3.1-4.5, V 7.2-8.5, balance optional elements, iron and impurities.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: November 12, 2019
    Assignee: UDDEHOLMS AB
    Inventors: Thomas Hillskog, Kjell Bengtsson, Petter Damm, Annika Engström Svensson, Rikard Robertsson, Kristoffer Steiner, Amanda Forsberg, Magnus Tidesten, Pär Emanuelsson
  • HOT WORK TOOL STEEL
    Publication number: 20190003021
    Abstract: The invention relates hot work tool steel. The steel comprises the following main components (in wt. %): C 0.27-0.38 Si 0.10-0.35 Mn 0.2-0.7 Cr 4.5-5.5 Mo 2.05-2.90 V 0.4-0.6 N 0.01-0.12 H ?0.0004 S ?0.0015 balance optional elements, iron and impurities.
    Type: Application
    Filed: November 28, 2016
    Publication date: January 3, 2019
    Inventors: Anna Medvedeva, Jerker Andersson, Rikard Robertsson, Cherin Nilsson, Sebastian Ejnermark
  • COLD WORK TOOL STEEL
    Publication number: 20170016099
    Abstract: The invention relates cold work tool steel. The steel includes the following main components (in wt. %): C 2.2-2.4, Si 0.1-0.55, Mn 0.2-0.8, Cr 4.1-5.1, Mo 3.1-4.5, V 7.2-8.5, balance optional elements, iron and impurities.
    Type: Application
    Filed: April 10, 2015
    Publication date: January 19, 2017
    Applicant: UDDEHOLMS AB
    Inventors: Thomas HILLSKOG, Kjell BENGTSSON, Petter DAMM, Annika ENGSTRÖM SVENSSON, Rikard ROBERTSSON, Kristoffer STEINER, Amanda FORSBERG, Magnus TIDESTEN, Pär EMANUELSSON
  • CORROSION AND WEAR RESISTANT COLD WORK TOOL STEEL
    Publication number: 20160214177
    Abstract: The invention relates to a corrosion and wear resistance cold work tool steel. The steel includes the following main components (in wt. %): C 0.3-0.8, N 1.0-2.2, (C+N) 1.3-2.2, C/N 0.17-0.50, Si?1.0, Mn 0.2-2.0, Cr 13-30, Mo 0.5-3.0, V 2.0-5.0, balance optional elementals, iron and impurities.
    Type: Application
    Filed: October 2, 2014
    Publication date: July 28, 2016
    Inventors: Sebastian Ejnermark, Thomas Hillskog, Lars Ekman, Rikard Robertsson, Victoria Bergqvist, Jenny Karlsson, Petter Damm, Ulrika Mossfeldt, Roland Edvinsson, Annika Engstrom Svensson, Berne Hogman