Patents by Inventor Shijay GAO

Shijay GAO 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).

  • Intermediate for synthesizing treprostinil diethanolamine and method for preparing the same
    Patent number: 9505704
    Abstract: The present invention relates to a method for treprostinil diethanolamine synthesis. The present invention also relates to a novel intermediate used in the method for treprostinil diethanolamine synthesis. The novel intermediate is shown in the following formula (II): wherein R1 and R2 are described in the description.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: November 29, 2016
    Assignee: EVERLIGHT CHEMICAL INDUSTRIAL CORPORATION
    Inventors: Shijay Gao, Chia-Chung Tsai, Tsai-Yung Chou, Yu-Min Chiang, Chi-Hsiang Yao
  • NOVEL INTERMEDIATE FOR SYNTHESIZING TREPROSTINIL DIETHANOLAMINE AND METHOD FOR PREPARING THE SAME
    Publication number: 20160152548
    Abstract: The present invention relates to a method for treprostinil diethanolamine synthesis. The present invention also relates to a novel intermediate used in the method for treprostinil diethanolamine synthesis. The novel intermediate is shown in the following formula (II): wherein R1 and R2 are described in the description.
    Type: Application
    Filed: November 6, 2015
    Publication date: June 2, 2016
    Inventors: Shijay GAO, Chia-Chung TSAI, Tsai-Yung CHOU, Yu-Min CHIANG, Chi-Hsiang YAO