Patents by Inventor Helene Grennberg

Helene Grennberg 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).

  • Graphene composite material for sliding contact
    Patent number: 11183344
    Abstract: A metal-graphene composite product in the form of a sliding contact of an electric power application, in which graphene flakes are dispersed in a matrix of the metal, as well as to a method for obtaining such a composite product.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: November 23, 2021
    Assignee: Hitachi Energy Switzerland AG
    Inventors: Anna Andersson, Mamoun Taher, Ulf Jansson, Martin Wåhlander, Leili Tahershamsi, Helene Grennberg
  • Graphene Composite Material For Sliding Contact
    Publication number: 20200152399
    Abstract: A metal-graphene composite product in the form of a sliding contact of an electric power application, in which graphene flakes are dispersed in a matrix of the metal, as well as to a method for obtaining such a composite product.
    Type: Application
    Filed: April 10, 2018
    Publication date: May 14, 2020
    Inventors: Anna Andersson, Mamoun Taher, Ulf Jansson, Martin Wåhlander, Leili Tahershamsi, Helene Grennberg