Patents by Inventor R{umlaut over (u)}diger Baur

R{umlaut over (u)}diger Baur 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).

  • Pigment for electrophotographic toners and developers
    Patent number: 6168895
    Abstract: Azo pigment of the formula (1) which has a specific surface area of the pigment powder of more than 45 m2/g. The azo pigment is particularly suitable as colorant in electrophotographic toners and devlopers, and in powder coatings and electret materials.
    Type: Grant
    Filed: June 17, 1997
    Date of Patent: January 2, 2001
    Assignee: Clariant GmbH
    Inventors: Hans Joachim Metz, R{umlaut over (u)}diger Baur, Hans-Tobias Macholdt