Patents by Inventor Jason J. Stephenson

Jason J. Stephenson 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: 8080199
    Abstract: The present invention is directed toward methods of crosslinking carbon nanotubes to each other using microwave radiation, articles of manufacture produced by such methods, compositions produced by such methods, and applications for such compositions and articles of manufacture. The present invention is also directed toward methods of radiatively modifying composites and/or blends comprising carbon nanotubes with microwaves, and to the compositions produced by such methods. In some embodiments, the modification comprises a crosslinking process, wherein the carbon nanotubes serve as a conduit for thermally and photolytically crosslinking the host matrix with microwave radiation.
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: December 20, 2011
    Assignee: William Marsh Rice University
    Inventors: James M. Tour, Christopher A. Dyke, Jason J. Stephenson, Boris I. Yakobson
  • Patent number: 7704323
    Abstract: Work from several laboratories has shown that metal nanofilaments cause problems in some molecular electronics testbeds. A new testbed for exploring the electrical properties of single molecules has been developed to eliminate the possibility of metal nanofilament formation and to ensure that molecular effects are measured. This metal-free system uses single-crystal silicon and single-walled carbon nanotubes as electrodes for the molecular monolayer. A direct Si-arylcarbon grafting method is used. Use of this structure with ?-conjugated organic molecules results in a hysteresis loop with current-voltage measurements that are useful for an electronic memory device. The memory is non-volatile for more than 3 days, non-destructive for more than 1,000 reading operations and capable of more than 1,000 write-erase cycles before device breakdown.
    Type: Grant
    Filed: January 23, 2006
    Date of Patent: April 27, 2010
    Assignee: William Marsh Rice University
    Inventors: James M. Tour, Jianli He, Bo Chen, Austen K. Flatt, Jason J. Stephenson, Condell D. Doyle
  • Patent number: 7625988
    Abstract: The present invention is directed to novel flame retardant monomers and polymers, wherein the flame retardant properties of the polymers are provided by functionality in pendant groups attached to a polymer backbone (as opposed to the polymer backbone itself possessing flame retardant properties. The present invention is also directed to methods of making such polymers and monomers, and articles of manufacture incorporating such monomers and polymers.
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: December 1, 2009
    Assignee: William Marsh Rice University
    Inventors: James M. Tour, Joshua L. Jurs, Jason J. Stephenson
  • Publication number: 20080169061
    Abstract: The present invention is directed toward methods of crosslinking carbon nanotubes to each other using microwave radiation, articles of manufacture produced by such methods, compositions produced by such methods, and applications for such compositions and articles of manufacture. The present invention is also directed toward methods of radiatively modifying composites and/or blends comprising carbon nanotubes with microwaves, and to the compositions produced by such methods. In some embodiments, the modification comprises a crosslinking process, wherein the carbon nanotubes serve as a conduit for thermally and photolytically crosslinking the host matrix with microwave radiation.
    Type: Application
    Filed: August 17, 2007
    Publication date: July 17, 2008
    Applicant: William Marsh Rice University
    Inventors: James M. Tour, Christopher A. Dyke, Jason J. Stephenson, Boris I. Yakobson
  • Publication number: 20040222081
    Abstract: The present invention is directed toward methods of crosslinking carbon nanotubes to each other using microwave radiation, articles of manufacture produced by such methods, compositions produced by such methods, and applications for such compositions and articles of manufacture. The present invention is also directed toward methods of radiatively modifying composites and/or blends comprising carbon nanotubes with microwaves, and to the compositions produced by such methods. In some embodiments, the modification comprises a crosslinking process, wherein the carbon nanotubes serve as a conduit for thermally and photolytically crosslinking the host matrix with microwave radiation.
    Type: Application
    Filed: December 17, 2003
    Publication date: November 11, 2004
    Applicants: William Marsh Rice University, University of North Texas
    Inventors: James M. Tour, Jason J. Stephenson, Timothy Imholt, Christopher A. Dyke, Boris I. Yakobson, James A. Roberts
  • Publication number: 20040222080
    Abstract: The present invention is directed toward methods of crosslinking carbon nanotubes to each other using microwave radiation, articles of manufacture produced by such methods, compositions produced by such methods, and applications for such compositions and articles of manufacture. The present invention is also directed toward methods of radiatively modifying composites and/or blends comprising carbon nanotubes with microwaves, and to the compositions produced by such methods. In some embodiments, the modification comprises a crosslinking process, wherein the carbon nanotubes serve as a conduit for thermally and photolytically crosslinking the host matrix with microwave radiation.
    Type: Application
    Filed: December 17, 2003
    Publication date: November 11, 2004
    Applicant: William Marsh Rice University
    Inventors: James M. Tour, Christopher A. Dyke, Jason J. Stephenson, Boris I. Yakobson