Patents by Inventor Christopher W. Welborn

Christopher W. Welborn 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).

  • Stop Collar for Tubulars
    Publication number: 20120061076
    Abstract: Embodiments of the disclosure may provide a stop collar for tubulars, wherein the collar includes an annular stop collar member formed from at least one collar segment, and a weld joint attaching each of the at least one collar segments together, each of the weld joint(s) having a head and stem, wherein in certain embodiments the head has a width that is generally greater than the stem.
    Type: Application
    Filed: September 10, 2010
    Publication date: March 15, 2012
    Applicant: FRANK'S INTERNATIONAL, INC.
    Inventors: Troy L. McDaniel, Christopher W. Welborn, Jean Buytaert