Patents by Inventor Michael Holthausen

Michael Holthausen 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).

  • Partially hydrogenated chlorosilanes and methods for preparing same by selective hydrogenation
    Patent number: 11827522
    Abstract: A method is useful for preparing partially hydrogenated chlorosilanes by selective hydrogenation with a compound of the formula R2AlH, wherein R is a branched or cyclic hydrocarbon. Partially hydrogenated chlorosilanes can be prepared with said method, in particular partially hydrogenated chlorosilanes represented by the formula Cl3SiSi(SiH3)3, (Cl3Si)2Si(SiH3)2 or HSi(SiH3)2SiCl3.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: November 28, 2023
    Assignee: Evonik Operations GmbH
    Inventors: Michael Haas, Harald Stüger, Thomas Lainer, Odo Wunnicke, Michael Holthausen
  • SELECTIVE SUPERPARAMAGNETIC SINTERING AND AN INK SUITABLE THEREFOR
    Publication number: 20230119805
    Abstract: Methods can be used for producing three-dimensional objects by powder bed fusion, using inks containing superparamagnetic particles and solvents. Sintering is performed by a magnetic field having a frequency of 50 kHz to 5 GHz.
    Type: Application
    Filed: February 3, 2021
    Publication date: April 20, 2023
    Applicant: Evonik Operations GmbH
    Inventors: Odo Wunnicke, Susanne Leuchs, Tim Hupfeld, Michael Holthausen, Vanessa Vennemann, Dominik Mispelkamp, Maximilian Cornelius, Helmut Mack, Bodo Frings, Thomas Große-Puppendahl, Sylvia Monsheimer, Frank Heindl
  • Method for the preparation of hydridosilane oligomers
    Publication number: 20220089448
    Abstract: A method prepares hydridosilane oligomers, where the obtainable hydridosilane oligomers are useful. A method can also be used for preparing coating compositions and for preparing a silicon-containing layer.
    Type: Application
    Filed: November 28, 2019
    Publication date: March 24, 2022
    Applicant: Evonik Operations GmbH
    Inventors: Michael Holthausen, Maximilian Roccaro, Anna Pougin, Daniel Schmitt, Jörg Zöllner, Christian Däschlein, Odo Wunnicke
  • Partially hydrogenated chlorosilanes and methods for preparing same by selective hydrogenation
    Publication number: 20210261419
    Abstract: A method is useful for preparing partially hydrogenated chlorosilanes by selective hydrogenation with a compound of the formula R2AlH, wherein R is a branched or cyclic hydrocarbon. Partially hydrogenated chlorosilanes can be prepared with said method, in particular partially hydrogenated chlorosilanes represented by the formula Cl3SiSi(SiH3)3, (Cl3Si)2Si(SiH3)2 or HSi(SiH3)2SiCl3.
    Type: Application
    Filed: June 7, 2019
    Publication date: August 26, 2021
    Applicant: Evonik Operations GmbH
    Inventors: Michael Haas, Harald Stüger, Thomas Lainer, Odo Wunnicke, Michael Holthausen