Patents by Inventor Anna Carlsson

Anna Carlsson 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 SEPARATION
    Publication number: 20240158237
    Abstract: The present invention relates to a method of producing graphene and/or graphene oxide. The method comprises providing a copper-based sheet coated on one side with a carbonaceous material; providing a bath comprising an aqueous solution comprising a salt of at least one ion selected from Li+, Na+, K+, Mg2+ or Ca2+, in which bath a first electrode is arranged; feeding the copper-based sheet into the bath; applying a first voltage between the copper-based sheet and the first electrode; applying a second voltage, reversed as compared to the first voltage, between the copper-based sheet and the first electrode, such that graphene and/or graphene oxide is exfoliated from the carbonaceous material. The present invention also relates to a system for producing graphene and/or graphene oxide. The present invention also relates to a graphene material formed as crystalline, self-supporting hexagonal flakes.
    Type: Application
    Filed: March 30, 2022
    Publication date: May 16, 2024
    Applicant: Bright Day Graphene AB
    Inventor: Anna Carlsson
  • Carbon based composite material
    Patent number: 11618680
    Abstract: The present disclosure relates to a process for producing sheets of a composite material comprising a graphene film arranged on an amorphous carbon substrate, the process comprising the steps of: a) providing a lignin source and an aqueous solution to form a composition, b) depositing the composition on a metal surface, c) heating the composition on the metal surface to form the composite material.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: April 4, 2023
    Assignee: BRIGHT DAY GRAPHENE AB
    Inventor: Anna Carlsson
  • Carbon Based Composite Material
    Publication number: 20210061663
    Abstract: The present disclosure relates to a process for producing sheets of a composite material comprising a graphene film arranged on an amorphous carbon substrate, the process comprising the steps of: a) providing a lignin source and an aqueous solution to form a composition, b) depositing the composition on a metal surface, c) heating the composition on the metal surface to form the composite material.
    Type: Application
    Filed: March 22, 2019
    Publication date: March 4, 2021
    Inventor: Anna CARLSSON
  • Method of preparing zeolite single crystals
    Patent number: 6565826
    Abstract: Method of preparing zeolite single crystals comprising the step of: applying a synthesis gel with zeolite precursor composition within pore system and on surface of a particulate matrix material having a predetermined pore structure and particle size; subjecting the precursor composition to crystallising conditions; and isolating porous single crystals of the zeolite by removing the matrix material.
    Type: Grant
    Filed: December 5, 2000
    Date of Patent: May 20, 2003
    Assignee: Haldor Topsoe A/S
    Inventors: Claus J. H. Jacobsen, Jindrich Houzvicka, Iver Schmidt, Claus Madsen, Anna Carlsson
  • Method of preparing zeolite single crystals
    Publication number: 20010003117
    Abstract: Method of preparing zeolite single crystals comprising the step of
    Type: Application
    Filed: December 5, 2000
    Publication date: June 7, 2001
    Applicant: Haldor Topsoe A/S
    Inventors: Claus J. Jacobsen, Jindrich Houzvicka, Iver Schmidt, Claus Madsen, Anna Carlsson