Patents by Inventor Alexey Borisovich ZAITSEV

Alexey Borisovich ZAITSEV 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).

  • MANUFACTURE OF NITRILE COMPOUNDS
    Publication number: 20240132444
    Abstract: A process for manufacturing a nitrile compound through chain elongation of an alkylene amine compound containing three or more amine units in which at least two amine units are protected by a cyclic urea unit and at least one amine unit is not protected, includes reacting the at least one amine unit that is not protected with glycolonitrile or with the combination of formaldehyde and a cyanide compound selected from HCN and inorganic cyanide salts, to add at least one acetonitrile group to the at least one amine unit that is not protected.
    Type: Application
    Filed: December 14, 2021
    Publication date: April 25, 2024
    Applicant: NOURYON CHEMICALS INTERNATIONAL B.V.
    Inventors: Eike Nicolas KANTZER, Alexey Borisovich ZAITSEV, Tjerk Oedse BOONSTRA, Ina EHLERS, Rolf Krister EDVINSSON, Martin HEUS, Antoon Jacob Berend TEN KATE, Michiel Jozef Thomas RAAIJMAKERS
  • Salts, crystals, complexes, and derivatives of threonine diacetic acid, a process to prepare threonine diacetic acid, and the use thereof
    Patent number: 9416095
    Abstract: The present invention relates to new salts, complexes, crystals, solutions, dispersions, and slurries of threonine-N,N-diacetic acid or derivatives thereof, to formulations containing those, to processes to prepare those, and to the use thereof.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: August 16, 2016
    Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.
    Inventors: Axel Carstens, Tjerk Oedse Boonstra, Alexey Borisovich Zaitsev, Martin Heus, Wouter Jan Veenis
  • New Salts, Crystals, Complexes, and Derivatives of Threonine Diacetic Acid, a Process to Prepare threonine Diacetic Acid, and the Use Thereof
    Publication number: 20160159730
    Abstract: The present invention relates to new salts, complexes, crystals, solutions, dispersions, and slurries of threonine-N,N-diacetic acid or derivatives thereof, to formulations containing those, to processes to prepare those, and to the use thereof.
    Type: Application
    Filed: July 11, 2014
    Publication date: June 9, 2016
    Inventors: Axel CARSTENS, Tjerk Oedse BOONSTRA, Alexey Borisovich ZAITSEV, Martin HEUS, Wouter Jan VEENIS