Patents by Inventor William D. Sringfellow

William D. Sringfellow 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).

  • Patent number: 8567450
    Abstract: Pipe with a liner or core pipe and a liner or core pipe which is insertable into a host pipe, the liner or core pipe including, in certain aspects, a pipe made of temperature-resistant non-metallic corrosion-resistant material; first and second strengthening wraps around the pipe; a plurality of spaced-apart axial strength members or pulling tapes on the pipe; and a protective outer wrap on the pipe. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: October 29, 2013
    Assignee: Smart Pipe Company LP
    Inventors: William D. Sringfellow, Kyle Bethel, Aron Eklund, Stephen C. Catha, Kenneth R. Charboneau