Patents by Inventor Bret C. Schaffer

Bret C. Schaffer 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).

  • Durable material for outdoor shoe heels
    Patent number: 5276981
    Abstract: A very long wearing material to replace regions that erode rapidly in the heels of outdoor shoes. The material is made by embedding relatively large, round, wear-resistant particles in a very hard urethane binder. Applications include both applying the material directly to the heel as a paste with curing in situ and casting in molds for attachment to the heel with an adhesive.
    Type: Grant
    Filed: June 18, 1990
    Date of Patent: January 11, 1994
    Assignee: Allan Schaffer
    Inventors: Scott A. Schaffer, Bret C. Schaffer