Patents by Inventor Du W. Xia

Du W. Xia 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).

  • Novel radiopaque barium polymer complexes, compositions of matter and articles prepared therefrom
    Patent number: 4866132
    Abstract: Radiopaque polymeric materials comprising halogenated barium salts, homogeneously distributed at the molecular level, provide permanent, nonleachable radiopacities at least equivalent to pure aluminum without adversely affecting mechanical or physical properties of compositions in which they are employed.
    Type: Grant
    Filed: April 17, 1986
    Date of Patent: September 12, 1989
    Assignee: The Research Foundation of State University of New York
    Inventors: Alan Obligin, Du W. Xia, Ruth Silberman-Hazony, H. Ralph Rawls, Israel Cabasso, Johannes Smid