Patents by Inventor Guiwu Xiao

Guiwu Xiao 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).

  • O-pyridinequinone derivatives, the composition containing the derivatives, the process for preparation of the derivatives and the use of the derivatives
    Patent number: 7547713
    Abstract: The present invention relates to the o-pyridinequinone disubstituted derivatives, the composition containing the derivatives, the process for preparation of the derivatives and the use of the derivatives. The o-pyridinequinone disubstituted derivatives of the present invention have action of selectivity inhibiting COX-2 and they can be made into pharmaceuticals. The o-pyridinequinone disubstituted derivatives of the present invention have no acute toxicities and are a safe pharmaceutical.
    Type: Grant
    Filed: August 22, 2003
    Date of Patent: June 16, 2009
    Inventors: Lianquan Gu, Jun Wang, Guiwu Xiao
  • O-pyridinequinone derivatives, the composition containing the derivatives, the process for preparation of the derivatives and the use of the derivatives
    Publication number: 20060111405
    Abstract: The present invention relates to the o-pyridinequinone disubstituted derivatives, the composition containing the derivatives, the process for preparation of the derivatives and the use of the derivatives. The o-pyridinequinone disubstituted derivatives of the present invention have action of selectivity inhibiting COX-2 and they can be made into pharmaceuticals. The o-pyridinequinone disubstituted derivatives of the present invention have no acute toxicities and are a safe pharmaceutical.
    Type: Application
    Filed: August 22, 2003
    Publication date: May 25, 2006
    Inventors: Lianquan Gu, Jun Wang, Guiwu Xiao