Patents by Inventor Peter Böttcher

Peter Böttcher 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).

  • Chlorinated copper phthalocyanine pigments
    Patent number: 6794504
    Abstract: Incipiently chlorinated copper phthalocyanine pigments having a chlorine content of from 10 to 40% by weight and a dispersion harshness ≦10 in LDPE are useful for coloring plastics.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: September 21, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Ingo Klopp, Josef Hetzenegger, Peter Böttcher