Patents by Inventor Howard Q. Shen

Howard Q. Shen 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).

  • Composition and preparation for hafnium carbide ceramic precursor
    Patent number: 11873314
    Abstract: Metal containing polymer compositions, useful for the production of high temperature metal carbide ceramics are described, including poly(carbohafnocene) compositions and related poly(carbometallocene) compositions, as well as compositions formed from the reaction of hafnium chloride and 2-butyne-1,4-diol. Methods of synthesizing such compositions are provided.
    Type: Grant
    Filed: October 29, 2021
    Date of Patent: January 16, 2024
    Assignee: STARFIRE SYSTEMS, INC.
    Inventor: Howard Q. Shen
  • Composition and Preparation for Hafnium Carbide Ceramic Precursor
    Publication number: 20220135600
    Abstract: Metal containing polymer compositions, useful for the production of high temperature metal carbide ceramics are described, including poly(carbohafnocene) compositions and related poly(carbometallocene) compositions, as well as compositions formed from the reaction of hafnium chloride and 2-butyne-1,4-diol. Methods of synthesizing such compositions are provided.
    Type: Application
    Filed: October 29, 2021
    Publication date: May 5, 2022
    Inventor: Howard Q. Shen