Patents by Inventor Robert L. Wilkinson

Robert L. Wilkinson 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).

  • Condensate drain for an automatic sprinkler system of the dry-pipe type
    Patent number: 6102066
    Abstract: A condensate drain for an automatc sprinkler system of the dry-pipe type wherein the drain includes a one piece reservoir having a central chamber and tapering inlet and outlet chambers.
    Type: Grant
    Filed: April 26, 1999
    Date of Patent: August 15, 2000
    Inventors: Robert A. Craig, Robert L. Wilkinson