Patents by Inventor Tongchuan Li

Tongchuan Li 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).

  • Epibatidine and derivatives thereof as nicotine cholinergic receptor agonists
    Patent number: 6177451
    Abstract: The present invention provides methods of treatment utilizing pharmaceutical compositions comprising an effective nicotine agonist amount of epibatidine (1) or a synthetic 7-azabicyclo[2.2.1]-heptane or heptene derivative thereof, and a pharmaceutically acceptable earner, excipient or diluent.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: January 23, 2001
    Assignee: UCB, S.A.
    Inventors: Changgeng Qian, Tongchuan Li, Tesfaye Biftu, Tsung-Ying Shen
  • Epibatidine and derivatives thereof as cholinergic receptor agonists and antagonists
    Patent number: 6077846
    Abstract: This invention relates to the treatment of conditions that can be treated with a nicotinic agonist by administering to a patient an effective amount of a 7-azabicyclo[2.2.1]-heptane or heptene.
    Type: Grant
    Filed: December 17, 1996
    Date of Patent: June 20, 2000
    Assignee: UCB, S.A.
    Inventors: Changgeng Qian, Tongchuan Li, Tesfaye Biftu, Tsung-Ying Shen