Patents by Inventor Keith E. Van Buren

Keith E. Van Buren 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).

  • Method for predictably determining halftone dot sizes when altering color in a color separation process prior to scanning
    Patent number: 4719506
    Abstract: A process for color correcting an original color transparency in making individual plates for color printing comprises the steps of directing light through the transparency, adjusting the relative color densities of the primary color components (yellow, magenta and cyan) in the light to provide a desired color balance in the overall appearance of the transparency, determining the individual color densities of the primary color components at that desired color balance, determining the amounts of correction to the yellow, magenta and cyan dot percentages (dot sizes) in order to compensate for contamination of one or more colors in each of the three primary colors of printing inks, and scanning the color transparency.
    Type: Grant
    Filed: May 5, 1986
    Date of Patent: January 12, 1988
    Inventor: Keith E. Van Buren