Patents by Inventor Guenter Kern

Guenter Kern 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).

  • Composition for polishing surfaces of silicon dioxide
    Patent number: 8633111
    Abstract: A composition for polishing surfaces comprises the following components: a) at least one inorganic abrasive component (S) comprising a lanthanide oxide, b) at least one organic dispersing-agent component based on polymer (P), c) at least one organic gelling agent (G) such as gellan gum, d) water as solution or dispersing medium, and e) if appropriate further auxiliary and additive materials and has high stability.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: January 21, 2014
    Assignee: BASF SE
    Inventors: Sven Holger Behrens, Yaqian Liu, Günter Kern, Heidrun Debus
  • COMPOSITION FOR POLISHING SURFACES OF SILICON DIOXIDE
    Publication number: 20110045671
    Abstract: A composition for polishing surfaces comprises the following components: a) at least one inorganic abrasive component (S) comprising a lanthanide oxide, b) at least one organic dispersing-agent component based on polymer (P), c) at least one organic gelling agent (G) such as gellan gum, d) water as solution or dispersing medium, and e) if appropriate further auxiliary and additive materials and has high stability.
    Type: Application
    Filed: December 28, 2007
    Publication date: February 24, 2011
    Applicant: Basf Se
    Inventors: Sven Holger Behrens, Yaqian Liu, Guenter Kern, Heidrun Debus