Patents by Inventor Susanna E. Richards

Susanna E. Richards 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).

  • Impact resistant polymers
    Patent number: 5336720
    Abstract: An impact resistant graft polymer and an emulsion polymerization process comprising: 1) an agglomerated rubber latex made from a rubber latex and a polymerized polymeric additive, and 2) a grafted polymer.
    Type: Grant
    Filed: June 5, 1991
    Date of Patent: August 9, 1994
    Assignee: Rohm and Haas Company
    Inventors: Susanna E. Richards, William L. Wills, Donna Wetzel, Anibal Rosado