Patents by Inventor Michael D. Klettke

Michael D. Klettke 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).

  • Sun glasses
    Patent number: D440596
    Type: Grant
    Filed: May 27, 1999
    Date of Patent: April 17, 2001
    Inventor: Michael D. Klettke
  • Sun glasses
    Patent number: D464668
    Type: Grant
    Filed: February 25, 2002
    Date of Patent: October 22, 2002
    Inventor: Michael D. Klettke