Patents by Inventor Robert P. Drupp

Robert P. Drupp 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).

  • Reconfigurable frequency selective surfaces for remote sensing of chemical and biological agents
    Patent number: 7679563
    Abstract: An improved frequency selective surface (FSS) comprises a periodically replicated unit cell, the unit cell including a material having a first electrical conductivity in the presence of an external condition, and a second electrical conductivity in the absence of an external condition, or in the presence of a modified external condition. For example, the material may be a chemoresistive material, having an electrical conductivity that changes in the presence of a chemical or biological analyte, i.e. having a first value of electrical conductivity in the presence of the analyte, and a second value of electrical conductivity in the absence of the analyte.
    Type: Grant
    Filed: January 14, 2005
    Date of Patent: March 16, 2010
    Assignee: The Penn State Research Foundation
    Inventors: Douglas H. Werner, Theresa S. Mayer, Jeremy A. Bossard, Robert P. Drupp, Xiaotao Liang, Ling Li
  • Reconfigurable Frequency Selective Surfaces For Remote Sensing of Chemical and Biological Agents
    Publication number: 20080224947
    Abstract: An improved frequency selective surface (FSS) comprises a periodically replicated unit cell, the unit cell including a material having a first electrical conductivity in the presence of an external condition, and a second electrical conductivity in the absence of an external condition, or in the presence of a modified external condition. For example, the material may be a chemoresistive material, having an electrical conductivity that changes in the presence of a chemical or biological analyte, i.e. having a first value of electrical conductivity in the presence of the analyte, and a second value of electrical conductivity in the absence of the analyte.
    Type: Application
    Filed: January 14, 2005
    Publication date: September 18, 2008
    Inventors: Douglas H. Werner, Theresa S. Mayer, Jeremy A. Bossard, Robert P. Drupp, Xiaotao Liang, Ling Li