Patents by Inventor Roman Maisch

Roman Maisch 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).

  • Surface-modified flaky substrates having improved settling and redispersing characteristics
    Patent number: 5656375
    Abstract: The present invention relates to surface-modified pigments based on flaky substrates having improved settling and redispersing characteristics and to the preparation and use thereof.
    Type: Grant
    Filed: December 30, 1994
    Date of Patent: August 12, 1997
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Karl Osterried, Gerhard Herget, Ralf Glausch, Roman Maisch