Patents by Inventor Joerg WERLE

Joerg WERLE 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).

  • IMPROVED PROCESS FOR PREPARING P-NITROBENZOIC ACID-2-ETHYLHEXYL ESTER
    Publication number: 20260078083
    Abstract: The present invention relates to a process for preparing p-nitrobenzoic acid-2-ethyl hexylester comprising reacting p-nitrobenzoic acid, wherein an excess of 2-ethylhexanol acts as solvent and no additional solvent is added, or p-nitrobenzoic acid and 2-ethylhexanol are provided in equimolar amounts and no additional solvent is added, or 2-ethylhexanol is provided in substoichiometric amounts and no additional solvent is added. Further, the present invention relates to the p-nitrobenzoic acid-2-ethyl hexylester obtained by the process and having high purity and optimum product properties.
    Type: Application
    Filed: August 28, 2023
    Publication date: March 19, 2026
    Inventors: Peter LEIDINGER, Thomas BERG, Helmut KRONEMAYER, Joerg WERLE
  • IMPROVED PROCESS FOR PREPARING P-AMINOBENZOIC ACID-2-ETHYLHEXYL ESTER
    Publication number: 20260062377
    Abstract: The present invention relates to a process for preparing p-aminobenzoic acid-2-ethylhexyl ester comprising reacting p-nitrobenzoic acid-2-ethylhexyl ester with hydrogen in the presence of a catalyst, wherein the reaction is performed in water or in a mixture of water and 2-ethylhexanol. Further, the present invention relates to the p-aminobenzoic acid-2-ethyl hexylester obtained by the process and having high purity.
    Type: Application
    Filed: August 28, 2023
    Publication date: March 5, 2026
    Inventors: Peter LEIDINGER, Thomas BERG, Helmut KRONEMAYER, Sebastian EMMERLING, Joerg WERLE