Patents by Inventor W. Donald Parr

W. Donald Parr 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: D516148
    Type: Grant
    Filed: April 12, 2005
    Date of Patent: February 28, 2006
    Inventor: W. Donald Parr
  • Patent number: D520088
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: May 2, 2006
    Inventor: W. Donald Parr