Patents by Inventor Andre Gruessing

Andre Gruessing 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: 9065055
    Abstract: The present invention relates to a method for preparing doped organic semiconductor materials as well as a formulation which may be utilized in that method. The doped organic semiconductor materials are prepared by preparing a solution or suspension containing at least one dopant precursor, at least one organic material to be doped, and a solvent. The solution or suspension is then applied onto a substrate. After removing the solvent, the dopant precursor is converted into a dopant by application of activation energy. The dopant precursor, which is a dimer, oligomer, polymer, dispiro compound, or polycycle, is cleaved by the application of activation energy.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: June 23, 2015
    Assignee: NOVALED AG
    Inventors: Olaf Zeika, Andrea Lux, Andre Gruessing, Michael Limmert, Horst Hartmann, Ansgar Werner, Martin Ammann
  • Patent number: 8431046
    Abstract: The present invention relates to the use of heterocyclic radicals or diradicals, their dimers, oligomers, polymers, dispiro compounds and polycycles for use as dopant for doping an organic semiconductive matrix material, where the dopants have a structure based on the following formulae.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: April 30, 2013
    Assignee: Novaled AG
    Inventors: Olaf Zeika, Andrea Lux, Andre Gruessing, Michael Limmert, Horst Hartmann, Ansgar Werner
  • Patent number: 7884209
    Abstract: The present invention relates to the use of bora-tetraazapentalenes with the general formula A as redox-dopant and/or emitter in electronic, optoelectronic or electroluminescent structural elements.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: February 8, 2011
    Assignee: Novaled AG
    Inventors: Andre Gruessing, Horst Hartmann