Patents by Inventor Randall C. Douglas

Randall C. Douglas 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 pad
    Patent number: D279818
    Type: Grant
    Filed: June 10, 1982
    Date of Patent: July 23, 1985
    Inventor: Randall C. Douglas