Patents by Inventor Dennis KAUFHOLD

Dennis KAUFHOLD 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 OF MANUFACTURING 2-(4'-DIETHYLAMINO-2'-HYDROXYBENZOYL)BENZOIC ACID HEXYL ESTER
    Publication number: 20240109838
    Abstract: The present invention relates to a process of manufacturing 2-(4?-diethylamino-2?-hydroxybenzoyl)benzoic acid hexyl ester having a Gardner value of 8.2 or less comprising adjusting the reaction mixture obtained by reacting 2-(4?-diethylamino-2?-hydroxybenzoyl)benzoic acid with n-hexanol to a pH of more than 7 followed by extracting at least once with an aqueous phase and adsorbing the dissolved 2-(4?-diethylamino-2?-hydroxybenzoyl)benzoic acid hexyl ester over at least two different adsorbents.
    Type: Application
    Filed: December 16, 2021
    Publication date: April 4, 2024
    Inventors: Karin SCHEIN-ALBRECHT, Thomas EHLIS, Mathieu BLANCHOT, Dennis KAUFHOLD, Helmut KRONEMAYER, Sebastian WLOCH
  • METHOD FOR OBTAINING CRYSTALLINE DIETHYLAMINO HYDROXYBENZOYL HEXYL BENZOATE
    Publication number: 20240025841
    Abstract: The presently claimed invention relates to a method for obtaining crystalline diethylamino hydroxybenzoyl hexyl benzoate. Further, the presently claimed invention relates to crystalline diethylamino hydroxybenzoyl hexyl benzoate obtained by the method and to a cosmetic composition comprising crystalline diethylamino hydroxybenzoyl hexyl benzoate. The crystalline diethylamino hydroxybenzoyl hexyl benzoate obtained by the method of the presently claimed invention has a phthalic acid dihexyl ester (PSDHE) content in the range of 1 to 250 ppm.
    Type: Application
    Filed: December 16, 2021
    Publication date: January 25, 2024
    Inventors: Helmut KRONEMAYER, Sebastian WLOCH, Andreas MELZER, Mathieu BLANCHOT, Karin SCHEIN-ALBRECHT, Dennis KAUFHOLD, Thomas EHLIS
  • PROCESS FOR ISOLATING 2-(4'-DIETHYLAMINO-2'-HYDROXYBENZOYL)BENZOIC ACID HEXYL ESTER
    Publication number: 20230357129
    Abstract: The present invention relates to a process for isolating 2-(4?-diethylamino-2?-hydroxybenzoyl)benzoic acid hexyl ester with a high purity and low phthalic acid dialkyl ester content.
    Type: Application
    Filed: February 25, 2021
    Publication date: November 9, 2023
    Inventors: Thomas EHLIS, Karin SCHEIN-ALBRECHT, Mathieu BLANCHOT, Dennis KAUFHOLD, Sebastian WLOCH, Helmut KRONEMAYER