Patents by Inventor Jia Weitao

Jia Weitao 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: 9296891
    Abstract: A filler for a dental resin composition is disclosed, comprising silica particles derived from a nanoparticulate silica sol, the filler material having at least one crystalline phase. The filler material provides improved wear resistance and other properties.
    Type: Grant
    Filed: February 1, 2010
    Date of Patent: March 29, 2016
    Assignee: PENTRON CLINICAL TECHNOLOGIES, LLC
    Inventors: Jia Weitao, Jin Shuhua
  • Publication number: 20100152019
    Abstract: A filler for a dental resin composition is disclosed, comprising silica particles derived from a nanoparticulate silica sol, the filler material having at least one crystalline phase. The filler material provides improved wear resistance and other properties.
    Type: Application
    Filed: February 1, 2010
    Publication date: June 17, 2010
    Applicant: PENTRON CLINICAL TECHNOLOGIES, LLC
    Inventors: Jia Weitao, Jin Shuhua