Patents by Inventor Gregory Knox Leiser

Gregory Knox Leiser 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).

  • Trench shovel
    Patent number: D474082
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: May 6, 2003
    Inventor: Gregory Knox Leiser