Patents by Inventor David Marshall Porterfield

David Marshall Porterfield 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).

  • Modified graphitic electrodes for electrochemical energy storage enhancement
    Patent number: 10319537
    Abstract: A method of graphitic petal synthesis includes a step of providing a flexible carbon substrate, such as that including carbon microfibers. The method further includes the step of subjecting flexible carbon substrate to microwave plasma enhanced chemical vapor deposition. The resulting synthesized graphitic petal structure may optionally be coated with PANI.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: June 11, 2019
    Assignee: Purdue Research Foundation
    Inventors: Jonathan Clay Claussen, Anurag Kumar, Timothy S. Fisher, Ronald G. Reifenberger, Guoping Xiong, David Benjamin Jaroch, David Marshall Porterfield, Rajib Paul
  • MODIFIED GRAPHITIC ELECTRODES FOR ELECTROCHEMICAL ENERGY STORAGE ENHANCEMENT
    Publication number: 20140322608
    Abstract: A method of graphitic petal synthesis includes a step of providing a flexible carbon substrate, such as that including carbon microfibers. The method further includes the step of subjecting flexible carbon substrate to microwave plasma enhanced chemical vapor deposition. The resulting synthesized graphitic petal structure may optionally be coated with PANI.
    Type: Application
    Filed: February 14, 2014
    Publication date: October 30, 2014
    Applicant: PURDUE RESEARCH FOUNDATION
    Inventors: Jonathan Clay Claussen, Anurag Kumar, Timothy S. Fisher, Ronald G. Reifenberger, Guoping Xiong, David Benjamin Jaroch, David Marshall Porterfield
  • Controlling wood staining and color during post-harvest processing
    Patent number: 8216644
    Abstract: Methods of darkening and preserving wood, including cut wood, are described herein. The methods comprise treating wood, including cut wood, with a solution containing a cell signaling agent to darken wood. Also described herein are methods for preserving the color of wood comprise treating wood, including cut wood, with a solution containing a cell signaling agent inhibitor. Wood, including cut wood, prepared by such methods are further described herein.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: July 10, 2012
    Assignee: Purdue Research Foundation
    Inventors: David Marshall Porterfield, Daniel L. Cassens
  • Controlling wood staining and color during post-harvest processing
    Publication number: 20080220171
    Abstract: Methods of darkening and preserving wood, including cut wood, are described herein. The methods comprise treating wood, including cut wood, with a solution containing a cell signaling agent to darken wood. Also described herein are methods for preserving the color of wood comprise treating wood, including cut wood, with a solution containing a cell signaling agent inhibitor. Wood, including cut wood, prepared by such methods are further described herein.
    Type: Application
    Filed: November 2, 2007
    Publication date: September 11, 2008
    Inventors: David Marshall Porterfield, Daniel L. Cassens