Patents by Inventor Harald Kueppers

Harald Kueppers 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: 4878977
    Abstract: Method for printing and article produced thereby which uses the six chromatic colors yellow, green, cyan-blue, violet-blue, magenta, red and orange-red and wherein a plurality of color field tables are produced for combinations of two of the chromatic colors which are juxtaposed or neighboring and a plurality of tables for each specific combination is made by varying the amount of black on different color field tables. The color field tables can be utilized to match and obtain desired colors by comparing color field tables with desired colors. If the printing material is not white, the eighth color white may also be used in the printing process.
    Type: Grant
    Filed: June 15, 1987
    Date of Patent: November 7, 1989
    Inventor: Harald Kueppers
  • Patent number: 4812899
    Abstract: A method for producing multi-color prints with the color impressions produced by a plurality of inked elemental surfaces and the picture surface is divided into subsurfaces of identical size and every subsurface is divided into juxtaposed elemental surfaces which form a chromatic component and an achromatic component so that the color nuance desired at the particular picture location is obtained, whereby the elemental surfaces which form the chromatic component are printed with a maximum of two of six chromatic printing inks, yellow, orange-red, magenta-red, violet-blue, cyan blue, green and black, depending on the chromatic component to be produced, and the elemental surfaces which produce the achromatic component are a mixture of white and black depending on the achromatic component of the sub-surface to be produced.
    Type: Grant
    Filed: December 19, 1986
    Date of Patent: March 14, 1989
    Inventor: Harald Kueppers