Patents by Inventor Levente Simon

Levente Simon 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).

  • MEROCYANINE CRYSTALLIZATION PROCESS
    Publication number: 20250059134
    Abstract: The present invention relates to a process for preparing a crystalline merocyanine compound, comprising the step of dissolving a merocyanine compound in an organic, polar solvent, wherein the process is performed at a pH below than 7 in the presence of an acid, wherein residual levels of colored impurities are eliminated.
    Type: Application
    Filed: October 22, 2024
    Publication date: February 20, 2025
    Inventors: Barbara WINKLER, Levente SIMON
  • Merocyanine crystallization process
    Patent number: 12157716
    Abstract: The present invention relates to a process for preparing a crystalline merocyanine compound, comprising the step of dissolving a merocyanine compound in an organic, polar solvent, wherein the process is performed at a pH below than 7 in the presence of an acid, wherein residual levels of colored impurities are eliminated.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: December 3, 2024
    Assignee: BASF SE
    Inventors: Barbara Winkler, Levente Simon
  • MEROCYANINE CRYSTALLIZATION PROCESS
    Publication number: 20210323912
    Abstract: The present invention relates to a process for preparing a crystalline merocyanine compound, comprising the step of dissolving a merocyanine compound in an organic, polar solvent, wherein the process is performed at a pH below than 7 in the presence of an acid, wherein residual levels of colored impurities are eliminated.
    Type: Application
    Filed: July 9, 2019
    Publication date: October 21, 2021
    Inventors: Barbara Winkler, Levente Simon