Patents by Inventor Duane Eugene Kerr

Duane Eugene Kerr 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).

  • Vessel sealer
    Patent number: D457959
    Type: Grant
    Filed: April 6, 2001
    Date of Patent: May 28, 2002
    Assignee: Sherwood Services AG
    Inventors: Philip Mark Tetzlaff, Duane Eugene Kerr, Patricia Moroney Hoag