Patents by Inventor Christine Halik

Christine Halik 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).

  • Quinacridone pigment compositions comprising unsymmetrically substituted components
    Patent number: 7166158
    Abstract: The present invention relates to a novel quinacridone pigment compositions, a process using a mixed amine synthesis for the ultimate production of the compositions and to their use as colorants for pigmenting high molecular weight organic materials.
    Type: Grant
    Filed: July 13, 2004
    Date of Patent: January 23, 2007
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Valentina K. Mitina, Kevin Rodney Gerzevske, Stéphane Biry, Christine Halik
  • Quinacridone pigment compositions comprising unsymmetrically substituted components
    Publication number: 20050011403
    Abstract: The present invention relates to a novel quinacridone pigment compositions, a process using a mixed amine synthesis for the ultimate production of the compositions and to their use as colorants for pigmenting high molecular weight organic materials.
    Type: Application
    Filed: July 13, 2004
    Publication date: January 20, 2005
    Inventors: Valentina Mitina, Kevin Gerzevske, Stephane Biry, Christine Halik