Patents by Inventor John Fei

John Fei 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).

  • Cover removal tab for optical products
    Patent number: 7147358
    Abstract: An optical product comprised of an optical film and a protective cover has a cover removal tab attached along one edge. The cover removal tab allows the protective cover to be easily and efficiently removed from the optical film. In addition, there is no imprint of the cover removal tab on the optical film when multiple optical products are stacked or rolled up for storage, the protective cover remains the same size as the optical film, adding the cover removal tab to the optical product only requires a one punch-head converting machine, and there is minimal waste of material and time to add the cover removal tab.
    Type: Grant
    Filed: December 31, 2003
    Date of Patent: December 12, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Anthony J. Freking, Ashok Lu, John Fei, Ren Hua Feng
  • Cover removal tab for optical products
    Publication number: 20050146881
    Abstract: An optical product comprised of an optical film and a protective cover has a cover removal tab attached along one edge. The cover removal tab allows the protective cover to be easily and efficiently removed from the optical film. In addition, there is no imprint of the cover removal tab on the optical film when multiple optical products are stacked or rolled up for storage, the protective cover remains the same size as the optical film, adding the cover removal tab to the optical product only requires a one punch-head converting machine, and there is minimal waste of material and time to add the cover removal tab.
    Type: Application
    Filed: December 31, 2003
    Publication date: July 7, 2005
    Inventors: Anthony Freking, Ashok Lu, John Fei, Ren Feng