Patents by Inventor Roy D. Bertolet

Roy D. Bertolet 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: 7875043
    Abstract: A solution is provided to release a tissue cinching loop within a body having a first thread having a first end and a second end, and a second thread having a first half having a first tip, a second half having a second tip, a bottom half having a link, and a top half, wherein the first end is inserted through the link. A first knot is formed around the first thread with the top half thereby forming a loop where the diameter of the loop decreases as the knot is pushed into the body and the first thread is pulled out of the body and where the loop is released within the body when the first end is pulled out of the body.
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: January 25, 2011
    Assignee: Sub-Q, Inc.
    Inventors: Mark Ashby, Roy D. Bertolet, Tin T. Tran, Andrew H. Cragg
  • Patent number: 4497849
    Abstract: A process for polymer coating electrical conductors comprises dissolving a polymer in a volatile solvent to provide a solution of the polymer. The solution is maintained in a container provided with an outlet orifice at its lower end. The conductor to be coated is drawn through the solution and out of the bottom orifice which is sized to receive the conductor and the desired wall thickness of the coating. After the coated conductor leaves the orifice, it is passed through a heating chamber to evaporate the volatile solvent.
    Type: Grant
    Filed: September 26, 1983
    Date of Patent: February 5, 1985
    Inventors: Howard C. Hughes, Roy D. Bertolet