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: 8258501
    Abstract: A method of using a metal complex as an n-dopant for doping an organic semiconducting matrix material in order to alter the latter's electrical characteristics is provided. In order to provide n-doped organic semiconductors with matrix materials having a low reduction potential, while achieving high conductivities, the n-dopant is a neutral electron-rich metal complex with a neutral or charged transition metal atom as a central atom and having at least 16 valence electrons. The complex can be polynuclear and can possess at least one metal-metal bond. At least one ligand can form a ? complex with the central atom, which can be a bridge ligand, or it can contain at least one carbanion-carbon atom or a divalent atom. Methods for providing the novel n-dopants are provided.
    Type: Grant
    Filed: March 3, 2005
    Date of Patent: September 4, 2012
    Assignee: Novaled AG
    Inventors: Ansgar Werner, Olaf Kühl, Simon Gessler, Horst Hartmann, Andre Grüssing, Michael Limmert, Andrea Lux, Kentaro Harada
  • 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
  • Publication number: 20090212280
    Abstract: A method of using a metal complex as an n-dopant for doping an organic semiconducting matrix material in order to alter the latter's electrical characteristics is provided. In order to provide n-doped organic semiconductors with matrix materials having a low reduction potential, while achieving high conductivities, the n-dopant is a neutral electron-rich metal complex with a neutral or charged transition metal atom as a central atom and having at least 16 valence electrons. The complex can be polynuclear and can possess at least one metal-metal bond. At least one ligand can form a ? complex with the central atom, which can be a bridge ligand, or it can contain at least one carbanion-carbon atom or a divalent atom. Methods for providing the novel n-dopants are provided.
    Type: Application
    Filed: March 3, 2005
    Publication date: August 27, 2009
    Inventors: Ansgar Werner, Olaf Kühl, Simon Gessler, Horst Hartmann, Andre Grüssing, Michael Limmert, Andrea Lux, Kentaro Harada