Patents by Inventor Donald L. Sage

Donald L. Sage 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).

  • Heating and cooling neck device
    Patent number: D407474
    Type: Grant
    Filed: June 25, 1996
    Date of Patent: March 30, 1999
    Inventors: Donald L. Sage, Linda G. Sage