Patents by Inventor Matthias Groemping

Matthias Groemping 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).

  • METERING RING
    Publication number: 20120010430
    Abstract: The present invention relates to an apparatus for metering flowable media or gases, and to the use thereof.
    Type: Application
    Filed: March 26, 2010
    Publication date: January 12, 2012
    Applicant: Evonik Roehm GmbH
    Inventors: Lorenza Sartorelli, Andreas Perl, Udo Gropp, Arndt Selbach, Stefanie Sohnemann, Matthias Groemping, Norbert Mnich, Thomas Mertz
  • Method for producing alpha-hydroxycarboxylic acids and the esters thereof
    Patent number: 7423173
    Abstract: The invention relates to a process for the selective, economically viable preparation of methacrylic acid and methacrylic esters starting from acetone cyanohydrin, wherein, in a first step, 2-hydroxy-2-methylpropionic acid is prepared by reacting acetone cyanohydrin with sulphuric acid in the presence of water and a suitable polar solvent and is isolated and methacrylic acid is subsequently prepared by ?-elimination of water starting from 2-hydroxy-2-methylpropionic acid.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: September 9, 2008
    Assignee: Roehm GmbH & Co. KG
    Inventors: Steffen Krill, Friedel Schultheis, Udo Gropp, Matthias Groemping