Patents by Inventor Xiangle XIN

Xiangle XIN 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).

  • NOVEL PROCESS FOR THE PREPARATION OF SPIRO[2.5]OCTANE-5,7-DIONE AND SPIRO[3.5]NONANE-6,8-DIONE
    Publication number: 20170247315
    Abstract: This invention relates to methods for the synthesis of spiro[2.5]octane-5, 7-dione and spiro[3.5]nonane-6, 8-dione which are useful as intermediates in the manufacture of pharmaceutically active ingredients.
    Type: Application
    Filed: August 28, 2015
    Publication date: August 31, 2017
    Applicant: Boehringer Ingelheim International GMBH
    Inventors: Xiangle XIN, Weitong DONG, Yan FU, Jun LU, Le XIE, Wei XU, Jinsong YANG, Qian ZHU