Patents by Inventor Stephen P. McCarthy

Stephen P. McCarthy 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).

  • .gamma.-poly(glutamic acid) esters
    Patent number: 5378807
    Abstract: A method is disclosed for significantly diminishing the rate of degradation of naturally-produced .gamma.-PGA in a .gamma.-PGA-producing cell culture. Also, a method is disclosed for significantly decreasing the water solubility coefficient of naturally-produced .gamma.-PGA by forming derivatives of .gamma.-PGA. In addition, a polymer solution is disclosed which includes a polysaccharide component and a .gamma.-PGA component.
    Type: Grant
    Filed: February 7, 1992
    Date of Patent: January 3, 1995
    Assignee: University of Massachusetts at Lowell
    Inventors: Richard A. Gross, Stephen P. McCarthy, Devang T. Shah