Patents by Inventor Niki L. Akers

Niki L. Akers 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).

  • Immobilized enzymes and uses thereof
    Patent number: 8048660
    Abstract: Disclosed are bioanodes comprising a quaternary ammonium treated Nafion® polymer membrane and a dehydrogenase incorporated within the treated Nafion® polymer. The dehydrogenase catalyzes the oxidation of an organic fuel and reduces an adenine dinucleotide. The ion conducting polymer membrane lies juxtaposed to a polymethylene green redox polymer membrane, which serves to electro-oxidize the reduced adenine dinucleotide. The bioanode is used in a fuel cell to produce high power densities.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: November 1, 2011
    Assignee: Saint Louis University
    Inventors: Shelley D. Minteer, Niki L. Akers, Christine M. Moore
  • BIOANODE AND BIOCATHODE STACK ASSEMBLIES
    Publication number: 20110039164
    Abstract: A biofuel cell device for generating electrical current. The device includes a fuel manifold having a face, and at least one cavity in the face defining a fuel reservoir, an inlet in fluid communication with the reservoir for flow of fuel fluid into the manifold to fill the reservoir and an outlet in fluid communication with the reservoir for flow of fuel fluid out of the manifold. The device has an anode assembly including at least one bioanode positioned for contact with fuel fluid in the fuel reservoir, and a cathode assembly including at least one cathode positioned for flow of fuel fluid through the bioanode to the cathode. The device includes a controller operatively connected to the anode assembly and the cathode assembly for controlling the output of electrical current from the biofuel cell device.
    Type: Application
    Filed: November 7, 2007
    Publication date: February 17, 2011
    Applicant: AKERMIN, INC.
    Inventors: Niki L. Akers, Scott A. Nelson, Wayne L. Gellett, David Trentmann, Jacob Whited, Yimin Zhu, David Bao Le, Mehmet Kesmez, Joshua Schumacher
  • IMMOBILIZED ENZYMES AND USES THEREOF
    Publication number: 20100209968
    Abstract: The present invention generally relates to uses of immobilized enzymes.
    Type: Application
    Filed: May 5, 2008
    Publication date: August 19, 2010
    Applicant: AKERMIN, INC.
    Inventors: Niki L. Akers, James Stirling McLaren, Shelley D. Minteer, Wayne Gellett, Mehmet Kesmez, Richard T. Zvosec
  • IMMOBILIZED ENZYMES AND USES THEREOF
    Publication number: 20100041123
    Abstract: Disclosed are bioanodes comprising a quaternary ammonium treated Nafion® polymer membrane and a dehydrogenase incorporated within the treated Nafion® polymer. The dehydrogenase catalyzes the oxidation of an organic fuel and reduces an adenine dinucleotide. The ion conducting polymer membrane lies juxtaposed to a polymethylene green redox polymer membrane, which serves to electro-oxidize the reduced adenine dinucleotide. The bioanode is used in a fuel cell to produce high power densities.
    Type: Application
    Filed: October 8, 2009
    Publication date: February 18, 2010
    Applicant: St. Louis University
    Inventors: Shelley D. Minteer, Niki L. Akers, Christine M. Moore
  • Enzyme immobilization for use in biofuel cells and sensors
    Patent number: 7638228
    Abstract: Disclosed are bioanodes comprising a quaternary ammonium treated Nafion® polymer membrane and a dehydrogenase incorporated within the treated Nafion® polymer. The dehydrogenase catalyzes the oxidation of an organic fuel and reduces an adenine dinucleotide. The ion conducting polymer membrane lies juxtaposed to a polymethylene green redox polymer membrane, which serves to electro-oxidize the reduced adenine dinucleotide. The bioanode is used in a fuel cell to produce high power densities.
    Type: Grant
    Filed: July 11, 2003
    Date of Patent: December 29, 2009
    Assignee: Saint Louis University
    Inventors: Shelley D. Minteer, Niki L. Akers, Christine M. Moore
  • Enzyme immobilization for use in biofuel cells and sensors
    Publication number: 20040101741
    Abstract: Disclosed are bioanodes comprising a quaternary ammonium treated Nafion® polymer membrane and a dehydrogenase incorporated within the treated Nafion® polymer. The dehydrogenase catalyzes the oxidation of an organic fuel and reduces an adenine dinucleotide. The ion conducting polymer membrane lies juxtaposed to a polymethylene green redox polymer membrane, which serves to electro-oxidize the reduced adenine dinucleotide. The bioanode is used in a fuel cell to produce high power densities.
    Type: Application
    Filed: July 11, 2003
    Publication date: May 27, 2004
    Applicant: St. Louis University
    Inventors: Shelley D. Minteer, Niki L. Akers, Christine M. Moore