Patents by Inventor Willi Brust

Willi Brust 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).

  • Aluminum phthalocyanine reactive dyes
    Patent number: 5780621
    Abstract: Phthalocyanines of the formula ##STR1## in which Z is a fiber-reactive radical and the other substituents and indices have the meaning given in the description, have improved use properties.
    Type: Grant
    Filed: August 8, 1996
    Date of Patent: July 14, 1998
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wolfgang Harms, Karl-Josef Herd, Willi Brust