Patents by Inventor Norman Edward Walker

Norman Edward Walker 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).

  • Plectrum
    Patent number: D673999
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: January 8, 2013
    Inventor: Norman Edward Walker