Patents by Inventor Klaus GROLL

Klaus GROLL 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).

  • SCALABLE SYNTHESIS OF OPTICALLY ACTIVE 1-CYCLOPROPYLALKYL-1-AMINES
    Publication number: 20210395185
    Abstract: The present invention provides a new, scalable synthetic method for the preparation of non-racemic 1-cyclopropyl alkyl-1-amines, e.g. (S)-1-cyclopropyl ethyl-1-amine. The method makes use of inexpensive starting materials (such as cyclopropyl methyl ketone and S-(?)-?-phenylethylamine) and is well suited for a large scale, industrial process.
    Type: Application
    Filed: October 17, 2019
    Publication date: December 23, 2021
    Inventors: Da DENG, Zhanquan DU, Klaus GROLL, Sabrina HOFEDITZ, Marion LAUBE, Michael PANGERL, Christian RINK, Qing XIAO, Zhibin ZHU