Patents by Inventor YiTong Shi

YiTong Shi 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).

  • Polycrystalline sintered nano-gran zinc sulfide ceramics for optical windows
    Patent number: 8803088
    Abstract: A method is provided for producing an article which is transparent to visible and infrared radiation. The method includes the steps of forming a green body from a population of nanoparticles; depositing a layer of ZnS powder over the green body, thereby producing a covered green body; and sintering the covered green body, thereby producing a sintered product.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: August 12, 2014
    Assignee: Texas Biochemicals, Inc.
    Inventors: Duraiswamy Ravichandran, YiTong Shi
  • POLYCRYSTALLINE SINTERED NANO-GRAN ZINC SULFIDE CERAMICS FOR OPTICAL WINDOWS
    Publication number: 20140203461
    Abstract: A method is provided for producing an article which is transparent to visible and infrared radiation. The method includes the steps of forming a green body from a population of nanoparticles; depositing a layer of ZnS powder over the green body, thereby producing a covered green body; and sintering the covered green body, thereby producing a sintered product.
    Type: Application
    Filed: May 29, 2013
    Publication date: July 24, 2014
    Inventors: Duraiswamy Ravichandran, YiTong Shi