Patents by Inventor Alexander A. Greish

Alexander A. Greish 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).

  • Process for the preparation of polymers containing amino groups employing a heterogeneous iron catalyst
    Patent number: 10100132
    Abstract: The present invention is related to a process for the preparation of polymers containing amino groups by hydrogenation of nitrile groups containing polymers by heterogeneous catalysis.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: October 16, 2018
    Assignee: ARLANXEO Deutschland GmbH
    Inventors: Joerg-Dietrich Jentsch, Johannes Kaulen, Werner Obrecht, Rommy Schneider, Christoph Larcher, Leonid Kustov, Alexander Greish, Elena Shouvalova, Olga Kirichenko
  • PROCESS FOR THE PREPARATION OF POLYMERS CONTAINING AMINO GROUPS EMPLOYING A HETEROGENEOUS IRON CATALYST
    Publication number: 20170081430
    Abstract: The present invention is related to a process for the preparation of polymers containing amino groups by hydrogenation of nitrile groups containing polymers by heterogeneous catalysis.
    Type: Application
    Filed: March 6, 2015
    Publication date: March 23, 2017
    Inventors: Joerg-Dietrich JENTSCH, Johannes KAULEN, Werner OBRECHT, Rommy SCHNEIDER, Christoph LARCHER, Leonid KUSTOV, Alexander GREISH, Elena SHOUVALOVA, Olga KIRICHENKO
  • ADSORBENT FOR DIENES REMOVAL FROM LIQUID AND GAS STREAMS
    Publication number: 20080194902
    Abstract: It is now possible to purify diene-contaminated liquid and gas streams by treating these streams with adsorbents comprising single or multiple transition metal polycation-exchanged faujasites having silicon to aluminum ratio from 0.9 to about 9.0, wherein said transition metal (Tr) polycations have the general formula [Tr?O?]n+, wherein a varies from 2 to 8, ?—from 0 to 4, and n—from 1 to 3 and wherein said transition metals include IB. IIB, VIIB and VIII Group metals preferably selected from the group consisting of copper, cadmium, zinc, manganese, nickel and iron.
    Type: Application
    Filed: February 12, 2007
    Publication date: August 14, 2008
    Inventors: Albert Michael Tsybulevski, Alexander A. Greish, Leonid M. Kustov