Patents by Inventor Ines Subrod

Ines Subrod 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).

  • Process for the preparation of composite pigments
    Patent number: 5562763
    Abstract: The invention relates to a process for the preparation of composite pigments containing a substrate having an average diameter of 3-200 .mu.m as support for small organic or inorganic pigment particles having an average diameter of less than 1 .mu.m, characterized in that the pigment particles are applied by spray-drying an aqueous suspension containing the substrates and the pigment particles without addition of additives.
    Type: Grant
    Filed: April 7, 1993
    Date of Patent: October 8, 1996
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Hans-Dieter Bruckner, Ines Subrod