Patents by Inventor Xinyi Niu

Xinyi Niu 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).

  • Substituted phthalides, a process for their preparations and pharmaceutical compositions containing them
    Patent number: 6689808
    Abstract: The invention relates to compounds of formula (I): wherein R1 represents alkyl or ureido, R2 represents alkyl or hydrogen, or R1 and R2 together form a 5- or 6-membered ring, R3 represents CN, NO2, NRaR′a, NRaSO2R′a, NRaCZR5 or CZNRaR′a, R4 represents hydrogen or R3, and medicinal products containing the same which are useful in treating or preventing epilepsy and neurodegenerative diseases.
    Type: Grant
    Filed: December 26, 2002
    Date of Patent: February 10, 2004
    Assignee: Les Laboratoires Servier
    Inventors: Zongru Guo, Fengming Chu, Juntian Zhang, Guangzhong Yang, Bailing Xu, Xinyi Niu, Zhihong Ren, Pierre Lestage, Pierre Renard
  • Substituted phthalides, a process for their preparations and pharmaceutical compositions containing them
    Publication number: 20030220393
    Abstract: The invention relates to compounds of formula (I): wherein R1 represents an alkyl or ureido group, R2 represents an alkyl group or a hydrogen atom, or R1 and R2 together form a 5- or 6-membered ring, R3 represents a group CN, NO2, NRaR′a, NRaSO2,R′aCZR5 or CZNRaR′a, R4 represents a hydrogen atom or a group R3.
    Type: Application
    Filed: December 26, 2002
    Publication date: November 27, 2003
    Inventors: Zongru Guo, Fengming Chu, Juntian Zhang, Guangzhong Yang, Bailing Xu, Xinyi Niu, Zhihong Ren, Pierre Lestage, Pierre Renard