Patents by Inventor Allison S. Chang

Allison S. Chang 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).

  • Chrondroitin sulfate/sodium hyaluronate composition
    Patent number: 6051560
    Abstract: Chondroitin sulfate/soduim hyaluronate compositions exhibiting pseudo-plastic behavior and non-Newtonian flow characteristics are disclosed.
    Type: Grant
    Filed: April 3, 1992
    Date of Patent: April 18, 2000
    Assignee: Nestle S.A.
    Inventors: Allison S. Chang, James E. Boyd, Richard M. Johnson, Harold O. Koch