Patents by Inventor Guoyuan Hu

Guoyuan Hu 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).

  • Aralkyl-ketone piperazine derivatives and their uses as new antalgic or ataractic agent
    Patent number: 7332495
    Abstract: Arylalkyl ketone piperazine derivatives of the formula: and pharmaceutical compositions comprising the same. Also disclosed are methods for using the compounds as analgesic and sedative agents. The compounds of the present invention have good analgesic and sedative activities but few side effects.
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: February 19, 2008
    Assignees: Nhwa Pharma. Corporation, Shanghai Institute of Pharmaceutical Industry
    Inventors: Jianqi Li, Liying Huang, Chunnian Zhang, Xican Tang, Guoyuan Hu
  • Aralkyl-ketone piperazine derivatives and their uses as new antalgic or ataractic agent
    Publication number: 20060148811
    Abstract: Arylalkyl ketone piperazine derivatives of the formula: and pharmaceutical compositions comprising the same. Also dislcosed are methods for using the compounds as analgesic and sedative agents. The compounds of the present invention have good analgesic and sedative activities but few side effects.
    Type: Application
    Filed: April 16, 2004
    Publication date: July 6, 2006
    Applicant: Shanghai Institute of Pharmaceutical Industry
    Inventors: Jianqi Li, Liying Huang, Chunnian Zhang, Xican Tang, Guoyuan Hu