Patents by Inventor Konrad Witzgall

Konrad Witzgall 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).

  • CATALYTIC ETHYNYLATION
    Publication number: 20210261488
    Abstract: The present invention relates to the catalytic ethynlation of ??-unsaturated ketones for producing tertiary acetylenic alcohols.
    Type: Application
    Filed: July 29, 2019
    Publication date: August 26, 2021
    Inventors: Fabrice AQUINO, Werner BONRATH, Francesco PACE, Peter RUCKSTUHL, Konrad WITZGALL
  • Process for the manufacture of 2-pentyn-1-ol
    Patent number: 9045404
    Abstract: The present invention is directed to a process for the manufacture of 2-pentyn-1-ol starting from 2-propyn-1-ol via the following intermediates (I), (II) wherein R1 is H or linear C1-6 alkyl, R2 is linear C1-6 alkyl or branched C3-6 alkyl and R3 is linear C1-6 alkyl, as well as to the intermediates themselves.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: June 2, 2015
    Assignee: DSM IP ASSETS B.V.
    Inventors: Werner Bonrath, Francesco Pace, Jocelyn Fischesser, Konrad Witzgall
  • PROCESS FOR THE MANUFACTURE OF 2-PENTYN-1-OL
    Publication number: 20120197046
    Abstract: The present invention is directed to a process for the manufacture of 2-pentyn-1-ol starting from 2-propyn-1-ol via the following intermediates (I), (II) wherein R1 is H or linear C1-6 alkyl, R2 is linear C1-6 alkyl or branched C3-6 alkyl and R3 is linear C1-6 alkyl, as well as to the intermediates themselves.
    Type: Application
    Filed: August 5, 2010
    Publication date: August 2, 2012
    Inventors: Werner Bonrath, Francesco Pace, Jocelyn Fischesser, Konrad Witzgall