Patents by Inventor Leonard W. Sutherland

Leonard W. Sutherland 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: D344867
    Type: Grant
    Filed: June 12, 1992
    Date of Patent: March 8, 1994
    Inventor: Leonard W. Sutherland
  • Patent number: D421690
    Type: Grant
    Filed: March 5, 1999
    Date of Patent: March 21, 2000
    Inventor: Leonard W. Sutherland