Patents by Inventor Joern KOLB

Joern KOLB 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).

  • Method for the production of praziquantel
    Patent number: 10160758
    Abstract: The present invention relates to a method for the racemization of enantiomerically pure or enantiomerically enriched Praziquantel under basic conditions and a method for the production of (R)-Praziquantel in enantiopure or enantiomerically enriched form, which comprises the racemization method.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: December 25, 2018
    Assignee: MERCK PATENT GMBH
    Inventors: Andreas Waechtler, Hadia Saleh-Kassim, Christian Jasper, Joern Kolb, David Maillard
  • METHOD FOR THE PRODUCTION OF PRAZIQUANTEL
    Publication number: 20180155339
    Abstract: The present invention relates to a method for the racemization of enantiomerically pure or enantiomerically enriched Praziquantel under basic conditions and a method for the production of (R)-Praziquantel in enantiopure or enantiomerically enriched form, which comprises the racemization method.
    Type: Application
    Filed: November 17, 2015
    Publication date: June 7, 2018
    Applicant: MERCK PATENT GMBH
    Inventors: Andreas WAECHTLER, Hadia SALEH-KASSIM, Christian JASPER, Joern KOLB, David MAILLARD