Patents by Inventor Christopher Bak

Christopher Bak 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: D322810
    Type: Grant
    Filed: May 21, 1990
    Date of Patent: December 31, 1991
    Inventor: Christopher Bak