Patents by Inventor Herbert N. Schlein

Herbert N. Schlein 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).

  • I.D. cards
    Patent number: 4219599
    Abstract: Laminated documents such as I.D. cards using a phosphorescent material as a verification or validation pattern.
    Type: Grant
    Filed: March 19, 1979
    Date of Patent: August 26, 1980
    Assignee: Polaroid Corporation
    Inventors: Elbert M. Idelson, Thomas Raphael, Herbert N. Schlein
  • Novel I.D. cards
    Patent number: 4151667
    Abstract: Laminated documents such as I.D. cards using a phosphorescent material as a verification or validation pattern.
    Type: Grant
    Filed: December 30, 1976
    Date of Patent: May 1, 1979
    Assignee: Polaroid Corporation
    Inventors: Elbert M. Idelson, Thomas Raphael, Herbert N. Schlein
  • Photographic products
    Patent number: 4025682
    Abstract: Integral negative-positive patterns viewable without separation of the negative-positive components. Essential elements of such film units comprise a photosensitive system which after exposure and processing can provide a diffusion transfer image pattern, an image pattern receiving system and a reflection system integrated with the elements of the product so that after exposure and processing, the image pattern can be viewed as a reflection print. The image receiving system of the products of the present invention comprise a transparent support or dimensionally stable layer through which the image pattern can be viewed and the transparent support or layer is characterized in that a distinctive UV light absorption capability is integrated therewith.
    Type: Grant
    Filed: August 7, 1975
    Date of Patent: May 24, 1977
    Assignee: Polaroid Corporation
    Inventors: Ronald F. W. Cieciuch, Herbert N. Schlein