Patents by Inventor H. Nicholas Ragland

H. Nicholas Ragland 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).

  • Retractable blade utility knife
    Patent number: D336029
    Type: Grant
    Filed: September 9, 1991
    Date of Patent: June 1, 1993
    Assignee: The Lutz File & Tool Co.
    Inventors: H. Nicholas Ragland, James F. Mariol
  • Retractable blade utility knife
    Patent number: D349227
    Type: Grant
    Filed: May 19, 1993
    Date of Patent: August 2, 1994
    Assignee: Millers Falls Tool Company
    Inventors: H. Nicholas Ragland, James F. Mariol