Patents by Inventor Reinhold Brink

Reinhold Brink 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).

  • Separation of isomeric menthol compounds
    Patent number: 9024079
    Abstract: The invention relates to a process for rectificative separation of compositions of matter containing diastereomers of 2-isopropyl-5-methylcyclohexanol by using ionic liquids as extractants.
    Type: Grant
    Filed: August 27, 2012
    Date of Patent: May 5, 2015
    Assignee: LANXESS Deutschland GmbH
    Inventors: Reinhold Brink, Lutz Heuer, Sven Kuhlmann, Martin Mechelhoff, Oliver Pfohl
  • Separation of isomeric menthol compounds
    Publication number: 20140018580
    Abstract: The invention relates to a process for rectificative separation of compositions of matter containing diastereomers of 2-isopropyl-5-methylcyclohexanol by using ionic liquids as extractants.
    Type: Application
    Filed: August 27, 2012
    Publication date: January 16, 2014
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Reinhold Brink, Lutz Heuer, Sven Kuhlmann, Martin Mechelhoff
  • Process for the production of sintering-active Si.sub.3 N.sub.4 powders
    Patent number: 5266535
    Abstract: A process is disclosed for producing sintering active silicon nitride powders with low oxygen content by wet grinding a silicon nitride starting material, leaching the ground suspension with fluorine-free mineral acid, and separating off the purified silicon nitride powder.
    Type: Grant
    Filed: December 21, 1992
    Date of Patent: November 30, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Reinhold Brink, Horst Lange