Patents by Inventor Mark E. VerMurlen

Mark E. VerMurlen 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).

  • Digital color proofing system
    Patent number: 6229623
    Abstract: A process for converting black-and-white color separation information contained in PostScript software to color separation information which can drive a color output device to print at least two different colors, which process comprises determining the position of commands in the black-and-white software which define the color output for the information on one color separation, and changing the command to indicate that a color other than black is to be produced.
    Type: Grant
    Filed: May 14, 1993
    Date of Patent: May 8, 2001
    Assignee: 3M Innovative Properties Company
    Inventor: Mark E. VerMurlen
  • Visual calibrator for color halftone imaging
    Patent number: 5598272
    Abstract: A visual calibrator for a digital color imaging proof system includes a series of patches on a carrier layer, the patches composed of combinations of at least two colors in halftone or continuous print, and associated with at least some of the patches are alphanumeric markings which relate to specific changes in an imaging signal for adjustment of the imaging system to modify the color of a proof towards a desired target color.
    Type: Grant
    Filed: April 7, 1994
    Date of Patent: January 28, 1997
    Assignee: Imation, Inc.
    Inventors: Richard S. Fisch, David A. Larshus, John A. Sands, Mark E. VerMurlen