Patents by Inventor Christopher Briehn

Christopher Briehn 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).

  • Hydroxyalkyl-functionalized fillers
    Patent number: 7576229
    Abstract: Hydroxyalkyl-functionalized particles are prepared by reacting a cyclic siloxy compound containing a glycol residue, an oxygen of the glycol residue bonded to silicon of a siloxy group through an intermediary methylene or substituted methylene linking group.
    Type: Grant
    Filed: January 26, 2006
    Date of Patent: August 18, 2009
    Assignee: Wacker Chemie AG
    Inventors: Oliver Schaefer, Christopher Briehn, Torsten Gottschalk-Gaudig