Patents by Inventor Hansjörg Künzli

Hansjörg Künzli 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: 6192801
    Abstract: A measuring field group for detecting quality data in the multicolor printing of single editions has measuring fields printed on a printed product in an optically scannable manner with at least one color-measuring surface (F) for determining a color density, a surface coverage or a tristimulus value for each of the measuring fields. To obtain register mark as well as shifting and doubling values simultaneously, the measuring fields have at least one lateral color strip (S) each, which is printed in the same print together with the color-measuring surface (F) of its measuring field, is narrow in relation to the dimensions of the color-measuring surface (F) of its measuring field, and extends at a likewise short lateral distance from the color-measuring surface (F) in relation to the dimensions of this color-measuring surface (F).
    Type: Grant
    Filed: September 22, 1997
    Date of Patent: February 27, 2001
    Assignee: Maschinenfabrik Wifag
    Inventors: Stephan Papritz, Karl Heuberger, Hansjörg Künzli, Markus Dätwyler