Patents by Inventor Shitong S. Zhu

Shitong S. Zhu 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).

  • Formation of three dimensional burls in a filled acrylic solid surface material
    Patent number: 6462103
    Abstract: A series of three-dimensional burls are formed in a filled acrylic solid surface material by curing two partially mixed casting compositions with defined parameters of viscosity, density and surface tension.
    Type: Grant
    Filed: October 15, 2001
    Date of Patent: October 8, 2002
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Carl P. Beitelshees, Rolf T. Weberg, Shitong S. Zhu, Elizabeth R. Walter
  • Conducting polymer transition metal hybrid materials and sensors
    Patent number: 6323309
    Abstract: Conductive properties are optimized in conducting polymers, made up of organic units and metal ions, by tailoring the position of metal ions with respect to conductive pathways or by selecting components such that the redox potential of organic units and metal ions differs by no more than 250 mV. Very small devices, and articles in which a high percentage of metal ions are redox active, are provided. Articles that can serve as sensors include metal ions with at least one free reactive site that can accommodate an analyte for conductivity change detection. Chemoresistive devices, field effect transistors, and signal amplifiers are provided.
    Type: Grant
    Filed: December 1, 1998
    Date of Patent: November 27, 2001
    Assignee: Massachusetts Institute of Technology
    Inventors: Timothy M. Swager, Richard Kingsborough, Shitong S. Zhu