Patents by Inventor Yisong WEN

Yisong WEN 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 preparing safinamide
    Patent number: 11225457
    Abstract: The present invention is related to a process for preparing safinamide and salts thereof, preferably safinamide methanesulfonate, with high yields and high enantiomeric and chemical purity without the need of using highly pure intermediates. The process of the present invention is suitable for the production of safinamide and its salts, preferably safinamide methanesulfonate, at industrial scale.
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: January 18, 2022
    Assignee: MEDICHEM, S.A.
    Inventors: Yisong Wen, David Font Gimbernat, Ernesto Durán López
  • PROCESS FOR PREPARING SAFINAMIDE
    Publication number: 20210040033
    Abstract: The present invention is related to a process for preparing safinamide and salts thereof, preferably safinamide methanesulfonate, with high yields and high enantiomeric and chemical purity without the need of using highly pure intermediates. The process of the present invention is suitable for the production of safinamide and its salts, preferably safinamide methanesulfonate, at industrial scale.
    Type: Application
    Filed: August 5, 2020
    Publication date: February 11, 2021
    Inventors: Yisong WEN, David FONT GIMBERNAT, Ernesto DURÁN LÓPEZ