Patents by Inventor Sam LOU

Sam LOU 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).

  • Efficient process for the preparation of sitagliptin
    Patent number: 11174266
    Abstract: Object of the present invention is an efficient process for the preparation of the active pharmaceutical ingredient Sitagliptine and the 2,4,5-trifluorophenylacetic acid (TFAA) and salt thereof, which is a key intermediate for the synthesis of Sitagliptine.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: November 16, 2021
    Assignee: F.I.S.—FABBRICA ITALIANA SINTETICI S.P.A.
    Inventors: Terry Shi, Sam Lou, Ottorino De Lucchi, Pierluigi Padovan
  • NEW EFFICIENT PROCESS FOR THE PREPARATION OF SITAGLIPTIN
    Publication number: 20210061808
    Abstract: Object of the present invention is an efficient process for the preparation of the active pharmaceutical ingredient Sitagliptine and the 2,4,5-trifluorophenylacetic acid (TFAA) and salt thereof, which is a key intermediate for the synthesis of Sitagliptine.
    Type: Application
    Filed: January 11, 2019
    Publication date: March 4, 2021
    Applicant: F.I.S. - FABBRICA ITALIANA SINTETICI S.P.A.
    Inventors: Terry SHI, Sam LOU, Ottorino DE LUCCHI, Pierluigi PADOVAN