Patents by Inventor Avni Argun

Avni Argun 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: 9728802
    Abstract: In polymer electrolyte membrane (PEM) fuel cells and electrolyzes, attaining and maintaining high membrane conductivity and durability is crucial for performance and efficiency. The use of low equivalent weight (EW) perfluorinated ionomers is one of the few options available to improve membrane conductivity. However, excessive dimensional changes of low EW ionomers upon application of wet/dry or freeze/thaw cycles yield catastrophic losses in membrane integrity. Incorporation of ionomers within porous, dimensionally-stable perforated polymer electrolyte membrane substrates provides improved PEM performance and longevity. The present invention provides novel methods using micromolds to fabricate the perforated polymer electrolyte membrane substrates. These novel methods using micromolds create uniform and well-defined pore structures. In addition, these novel methods using micromolds described herein may be used in batch or continuous processing.
    Type: Grant
    Filed: May 14, 2014
    Date of Patent: August 8, 2017
    Assignee: GINER, INC.
    Inventors: Cortney Mittelsteadt, Avni Argun, Castro Laicer, Jason Willey
  • Publication number: 20140342271
    Abstract: In polymer electrolyte membrane (PEM) fuel cells and electrolyzes, attaining and maintaining high membrane conductivity and durability is crucial for performance and efficiency. The use of low equivalent weight (EW) perfluorinated ionomers is one of the few options available to improve membrane conductivity. However, excessive dimensional changes of low EW ionomers upon application of wet/dry or freeze/thaw cycles yield catastrophic losses in membrane integrity. Incorporation of ionomers within porous, dimensionally-stable perforated polymer electrolyte membrane substrates provides improved PEM performance and longevity. The present invention provides novel methods using micromolds to fabricate the perforated polymer electrolyte membrane substrates. These novel methods using micromolds create uniform and well-defined pore structures. In addition, these novel methods using micromolds described herein may be used in batch or continuous processing.
    Type: Application
    Filed: May 14, 2014
    Publication date: November 20, 2014
    Inventors: CORTNEY MITTELSTEADT, AVNI ARGUN, CASTRO LAICER, JASON WILLEY
  • Publication number: 20050210672
    Abstract: A method for contacting patterned electrode devices includes the steps of providing a porous substrate, depositing electrically conductive material to form at least one electrode on a front-side of the porous substrate and depositing at least one electrically conductive back-side contact trace on the back-side of the substrate. A portion of the electrically conductive material penetrates into the substrate. A device is formed including the electrode on the front side of the substrate, wherein the electrode is electrically coupled by a conducting channel including the electrically conductive material through the substrate to the back-side contact trace.
    Type: Application
    Filed: November 19, 2004
    Publication date: September 29, 2005
    Inventors: John Reynolds, Avni Argun, Pierre Aubert, Mathieu Berard