Patents by Inventor Leonard Schaeffer

Leonard Schaeffer 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).

  • Lug nut
    Patent number: D549568
    Type: Grant
    Filed: September 19, 2005
    Date of Patent: August 28, 2007
    Inventor: Leonard Schaeffer