Patents by Inventor Jon Servaites

Jon Servaites 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).

  • Acid-base proton conducting polymer blend membrane
    Patent number: 7534515
    Abstract: An acid-base proton conducting polymer blend membrane is provided. The acid-base proton conducting polymer blend membrane comprises a first acidic polymer having acidic subunits, a second basic polymer having basic subunits, and a third polymer containing one or more functional units for improving membrane conductivity, flexibility, water remaining ability, dimension stability, and methanol crossover. In one embodiment, the acid-base polymer blend membrane of the present invention comprises a first acidic polymer having acidic subunits, a second basic polymer having basic subunits, wherein at least one of the first acidic and second basic polymer comprises one or more functional units to improve the properties of the membrane. The functional units include hydrophilic units, methanol blocking units, methanol blocking units, dimensional stabilizer units, and flexible units.
    Type: Grant
    Filed: January 23, 2003
    Date of Patent: May 19, 2009
    Assignee: Polyfuel, Inc.
    Inventors: Kiehyun Nam, Helen Xu, Shuguang Cao, David Olmeijer, Jon Servaites, Ying Wang
  • Acid-base proton conducting polymer blend membrane
    Publication number: 20030219640
    Abstract: An acid-base proton conducting polymer blend membrane is provided. The acid-base proton conducting polymer blend membrane comprises a first acidic polymer having acidic subunits, a second basic polymer having basic subunits, and a third polymer containing one or more functional units for improving membrane conductivity, flexibility, water remaining ability, dimension stability, and methanol crossover. In one embodiment, the acid-base polymer blend membrane of the present invention comprises a first acidic polymer having acidic subunits, a second basic polymer having basic subunits, wherein at least one of the first acidic and second basic polymer comprises one or more functional units to improve the properties of the membrane. The functional units include hydrophilic units, methanol blocking units, methanol blocking units, dimensional stabilizer units, and flexible units.
    Type: Application
    Filed: January 23, 2003
    Publication date: November 27, 2003
    Applicant: Polyfuel, Inc.
    Inventors: Kiehyun Nam, Helen Xu, Shuguang Cao, David Olmeijer, Jon Servaites, Ying Wang