Patents by Inventor Perry J. Townsend

Perry J. Townsend 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).

  • Apparatus for calibrating surface temperature measuring devices
    Patent number: 4479726
    Abstract: This application for calibrating surface temperature measuring devices is used in chemical processes. The apparatus is portable and comprises a cylindrical metal rod with controlled heating means of accurately known surface temperature.
    Type: Grant
    Filed: March 28, 1983
    Date of Patent: October 30, 1984
    Assignee: Merck & Co., Inc.
    Inventor: Perry J. Townsend