Patents by Inventor Bernhard Mainz

Bernhard Mainz 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).

  • Platelet-like pigments
    Patent number: 5344486
    Abstract: The invention relates to pigments based on platelet-like substrates substantially composed of nitridic material and coated with at least one dye and/or one metal oxide, and to processes for their preparation and also to their use in cosmetic preparations.
    Type: Grant
    Filed: February 5, 1993
    Date of Patent: September 6, 1994
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventor: Bernhard Mainz