Patents by Inventor Peter Wilfried Loevenich

Peter Wilfried Loevenich 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).

  • Polythiophene compositions for improving organic light-emitting diode
    Patent number: 8334331
    Abstract: The invention relates to compositions which include: (a) a polythiophene containing repeating units represented by the following general formula (I), wherein X represents, for example, —CH2—CH(CH2—O—(CH2)4SO3?H+)—; and (b) further polymers, that are different than polythiophene (a), and which contain SO3? M+ or COO?M+ groups. Also disclosed are electroluminescing (EL) arrangements that contain hole-injecting layers which include such compositions.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: December 18, 2012
    Assignee: Heraeus Precious Metals GmbH & Co. KG
    Inventors: Andreas Elschner, Knud Reuter, Peter Wilfried Lövenich
  • Polythiophene formulations for improving organic light emitting diodes
    Patent number: 8252889
    Abstract: The invention relates to formulations comprising polythiophenes A) comprising at least one polythiophene containing recurring units of the general formula (I-a) and/or (I-b) and at least two further polymers, the use thereof and electroluminescent arrangements comprising hole-injecting layers comprising these formulations.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: August 28, 2012
    Assignee: Heraeus Precious Metals GmbH & Co. KG
    Inventors: Andreas Elschner, Knud Reuter, Peter Wilfried Loevenich
  • TRANSPARENT POLYMERIC ELECTRODES FOR ELECTRO-OPTICAL STRUCTURES, PROCESS FOR PRODUCING THE SAME, AND DISPERSIONS USED IN SUCH PROCESSES
    Publication number: 20110210321
    Abstract: The invention concerns a process for producing transparent multi-layer electrodes from conductive polymers, electrodes produced by this process and their use in electro-optical structures.
    Type: Application
    Filed: May 9, 2011
    Publication date: September 1, 2011
    Inventors: Andreas Elschner, Peter Wilfried Loevenich, Friedrich Jonas
  • Transparent polymeric electrodes for electro-optical structures, processes for producing the same, and dispersions used in such processes
    Patent number: 7938986
    Abstract: The invention concerns a process for producing transparent multi-layer electrodes from conductive polymers, electrodes produced by this process and their use in electro-optical structures.
    Type: Grant
    Filed: December 12, 2006
    Date of Patent: May 10, 2011
    Assignee: H.C. Starck GmbH & Co. KG
    Inventors: Andreas Elschner, Peter Wilfried Loevenich, Friedrich Jonas
  • PROCESS FOR PREPARING POLYTHIOPHENES
    Publication number: 20090310285
    Abstract: The invention relates to a process for preparing polythiophene dispersions or for in situ deposition of polythiophenes. The dispersion is prepared by oxidative polymerizing of a thiophene or thiophene derivative, wherein an oxidizing agent is used and is at least one organic peroxidic compound excluding diacyl peroxide. The invention also relates to the use of specific organic peroxides as oxidizing agents in the oxidative polymerization of thiophenes. The invention further relates to a process to process a conductive layer and the use of the conductive layer.
    Type: Application
    Filed: September 19, 2007
    Publication date: December 17, 2009
    Applicant: H.C. Starck GmbH
    Inventors: Knud Reuter, Stephen Kirchmeyer, Udo Merker, Peter Wilfried Loevenich, Timo Meyer-Friedrichsen