Patents by Inventor Roger E. Bakken

Roger E. Bakken 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).

  • Heat activated translucent marking films
    Patent number: 5874158
    Abstract: Heat activated, translucent marking films are disclosed. The translucent, heat activated marking film has a transferable, translucent, plastic film and field of a heat activated, translucent adhesive adhered to the plastic film. The marking film is prepared and stored on a polymeric liner until transfer by heat to a substrate, such as a back-lit sign or an awning. The film can be cut into images prior to heat transfer to the substrate according to commercial graphics techniques.
    Type: Grant
    Filed: March 11, 1996
    Date of Patent: February 23, 1999
    Assignee: Minnesota Mining and manufacturing Company
    Inventors: Bret W. Ludwig, Chi Chung Hsu, Roger E. Bakken