Patents by Inventor Andreas Sandstrom

Andreas Sandstrom 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).

  • Light-emitting electrochemical cell
    Patent number: 10892434
    Abstract: A light-emitting electrochemical cell comprising a first electrode, a second electrode, and at least one light-emitting active material comprising a combination of an electrolyte, a first constituent comprising a host compound and a second constituent comprising a guest compound. A quotient between a difference in LUMO energy level between the first and second constituent, Etrapn, and a difference in HOMO energy level between the second and first constituent, Etrapp, is 1/10 to 10, a quotient between an electron mobility and a hole mobility on the first constituent is 1/100 to 100, a quotient between a number of ions of the electrolyte and a number of molecules or repeat units of the second constituent is ? to 5, and a LUMO energy level of the electrolyte is higher than the LUMO energy level of the first constituent and a HOMO energy level of the electrolyte is lower than the HOMO energy level of the first constituent.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: January 12, 2021
    Assignee: LUNALEC AB
    Inventors: Ludvig Edman, Martijn Kemerink, Andreas Sandstrom, Shi Tang
  • LIGHT-EMITTING ELECTROCHEMICAL CELL
    Publication number: 20190372046
    Abstract: A light-emitting electrochemical cell comprising a first electrode, a second electrode, and at least one light-emitting active material comprising a combination of an electrolyte, a first constituent comprising a host compound and a second constituent comprising a guest compound. A quotient between a difference in LUMO energy level between the first and second constituent, Etrapn, and a difference in HOMO energy level between the second and first constituent, Etrapp, is 1/10 to 10, a quotient between an electron mobility and a hole mobility on the first constituent is 1/100 to 100, a quotient between a number of ions of the electrolyte and a number of molecules or repeat units of the second constituent is ? to 5, and a LUMO energy level of the electrolyte is higher than the LUMO energy level of the first constituent and a HOMO energy level of the electrolyte is lower than the HOMO energy level of the first constituent.
    Type: Application
    Filed: January 18, 2017
    Publication date: December 5, 2019
    Inventors: Ludvig Edman, Martijn Kemerink, Andreas Sandstrom, Shi Tang