Patents by Inventor Eric M. Watts

Eric M. Watts 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).

  • Duct with wire locator
    Patent number: 6933438
    Abstract: A cylindrical duct of plastic material is coextruded with a longitudinal wire located between the duct inner and outer surfaces, and with a stripe of a different color plastic material than the duct overlying the wire. The stripe is of a softer plastic material than the duct plastic material to facilitate cutting of same to expose the wire, but is compatible with the duct plastic material so as to crosslink therewith.
    Type: Grant
    Filed: October 3, 2003
    Date of Patent: August 23, 2005
    Assignee: The Lamson & Sessions Co.
    Inventors: Eric M. Watts, Robert C. Humphreys