Patents by Inventor Dirk BETHKE

Dirk BETHKE 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 for the preparation of piperidine compounds
    Patent number: 12454528
    Abstract: The present invention relates to process for the preparation of a compound of formula (1), wherein R1 and R2 are independently from each other C1-C8alkyl, which comprises reacting a compound of formula (2), with a formaldehyde source in presence of a palladium or platinum catalyst at a hydrogen pressure of 5×108 mPa to 200×108 mPa.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: October 28, 2025
    Assignee: BASF SE
    Inventors: Alexander Michael Haydl, Michael Schmitt, Klaus Becker, Dirk Bethke, Elena Capito', Johann-Peter Melder
  • PROCESS FOR THE PREPARATION OF PIPERIDINE COMPOUNDS
    Publication number: 20230034961
    Abstract: The present invention relates to process for the preparation of a compound of formula (1), wherein R1 and R2 are independently from each other C1-C8alkyl, which comprises reacting a compound of formula (2), with a formaldehyde source in presence of a palladium or platinum catalyst at a hydrogen pressure of 5×108 mPa to 200×108 mPa.
    Type: Application
    Filed: December 14, 2020
    Publication date: February 2, 2023
    Inventors: Alexander Michael HAYDL, Michael SCHMITT, Klaus BECKER, Dirk BETHKE, Elena CAPITO', Johann-Peter MELDER