Patents by Inventor Michael Gra?

Michael Gra? 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).

  • Patent number: 9353244
    Abstract: Mixture of succinic esters, which is characterized in that the alkyl radical has a proportion of alkyl components having less than 9 carbon atoms of not more than 15% by mass, the alkyl radical has a proportion of alkyl components having more than 9 carbon atoms of not more than 25% by mass and the proportion of 3,5,5-trimethylhexyl radicals is not more than 5 mol % and the proportion of linear n-nonyl radicals is not more than 15 mol %.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: May 31, 2016
    Assignee: Evonik Degussa GmbH
    Inventors: Hinnerk Gordon Becker, Michael Graβ
  • Patent number: 9353040
    Abstract: The invention relates to a method for producing a product mixture (2) by means of the technical hydroformylation of a hydrocarbon stream (1) that contains isobutene, and for separating the product mixture (2) that is obtained, as well as to a device for the claimed method and to the use of a claimed device. The problem addressed thereby is that of providing a method and an associated device that allow the amount of high-boiling substances in the product mixture (2) to be kept as low as possible and thus the yield of the reaction to be increased. The problem is solved by the use of a nano-filtration device (M) for separating the catalyst from the product mixture (2), said device having especially high permeability to 3-methylbutanoic acid.
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: May 31, 2016
    Assignee: Evonik Degussa GmbH
    Inventors: Goetz Baumgarten, Michael Graβ, Alfred Kaizik, Markus Winterberg, Hans-Gerd Lueken, Bart Hamers, Markus Priske, Dirk Fridag, Robert Franke, Dieter Hess
  • Patent number: 9145379
    Abstract: The invention relates to mixtures of isononyl furan-2,5-dicarboxylate of formula (I), methods for producing said mixtures of isononyl furan-2,5-dicarboxylate of formula (I), compositions containing mixtures of isononyl furan-2,5-dicarboxylate of formula (I), uses of the mixtures of isononyl furan-2,5-dicarboxylate of formula (I) as plasticizers, and uses of the aforementioned compositions containing isononyl furan-2,5-dicarboxylate of formula (I).
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: September 29, 2015
    Assignee: Evonik Degussa GmbH
    Inventors: Michael Graβ, Hinnerk Gordon Becker
  • Patent number: 7683204
    Abstract: The present invention relates to mixtures of alicyclic polycarboxylic esters with high cis content, to a process for their preparation by ring-hydrogenation of the corresponding aromatic polycarboxylic esters, and also to the use of the mixtures.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: March 23, 2010
    Assignee: Oxeno Olefinchemie GmbH
    Inventors: Wilfried Büschken, Michael Graβ, Alfred Kaizik, Dietrich Maschmeyer, Axel Tuchlenski, Franz Nierlich
  • Patent number: 7418073
    Abstract: The invention relates to a computed tomography method in which an examination zone is irradiated along a circular trajectory by a fan-shaped radiation beam. Radiation coherently scattered in the examination zone is measured by a detector unit, the variation in space of the scatter intensity in the examination zone being reconstructed from said measuring values. Reconstruction is performed by back projection in a volume which is defined by two linearly independent vectors of the rotational plane and a wave vector transfer.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: August 26, 2008
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Jens-Peter Schlomka, Michael Graβ