Patents by Inventor Yicai Gao

Yicai 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).

  • 2-methyl-5-imino-benzo[D][1 ,3]oxazin[5-B]pyrazole compound, preparation and use thereof
    Patent number: 7973036
    Abstract: The present invention disclosed compound 2-methyl-5-imino-benzo[d][1,3]oxazin[5-b]pyrazole and preparation method and uses thereof. The compound 2-methyl-5-imino-benzo[d][1,3]oxazin[5-b]pyrazole of the present invention has the following structure of formula (II), wherein the compound or pharmaceutically acceptable salts thereof can be used for preparing the drugs for treatment or prevention of cardiovascular diseases.
    Type: Grant
    Filed: March 20, 2009
    Date of Patent: July 5, 2011
    Assignees: Qingdao Huanghai Pharmaceutical Co., Ltd, Nanjing Zhongrui Medicine Co., Ltd.
    Inventors: Guoqiang Su, Yicai Gao, Guirong Sun, Liming Wu, Yu Ren
  • 2-Methyl-5-Imino-Benzo[D][1,3]Oxazin[5-B]Pyrazole Compound, Preparation and Use Thereof
    Publication number: 20110118247
    Abstract: The present invention disclosed compound 2-methyl-5-imino-benzo[d][1,3]oxazin[5-b]pyrazole and preparation method and uses thereof. The compound 2-methyl-5-imino-benzo[d][1,3]oxazin[5-b]pyrazole of the present invention has the following structure of formula (II), wherein the compound or pharmaceutically acceptable salts thereof can be used for preparing the drugs for treatment or prevention of cardiovascular diseases.
    Type: Application
    Filed: March 20, 2009
    Publication date: May 19, 2011
    Applicants: QINGDAO HUANGHAI PHARMACEUTICAL CO., LTD., NANJING ZHONGRUI MEDICINE CO., LTD.
    Inventors: Guoqiang Su, Yicai Gao, Guirong Sun, Liming Wu, Yu Ren