Patents by Inventor Lijian Tao

Lijian Tao 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).

  • Preparation of 1-(substituted aryl)-5-trifluoromethyl-2-(1H)pyridone compounds and salts thereof and their applications
    Patent number: 8426407
    Abstract: A 1-(substituted aryl)-5-trifluoromethyl-2-(1H)pyridone compounds and pharmaceutical acceptable salts, preparation methods and uses for preparing the drugs for treating fibrosis thereof.
    Type: Grant
    Filed: May 24, 2010
    Date of Patent: April 23, 2013
    Assignee: Central South University
    Inventors: Gaoyun Hu, Lijian Tao, Jun Chen
  • Preparation of 1-(substituted benzyl)-5-trifluoromethyl-2(1H)pyridone compounds and salts thereof and their applications
    Patent number: 8377932
    Abstract: 1-(substituted benzyl)-5-trifluoromethyl-2(1H)pyridone compounds and their pharmaceutical acceptable salts are disclosed. The preparation methods of the compounds and their salts and the use of the same for preparing the medicaments for treating fibrosis are also disclosed. New pyridine compounds and their salts are obtained from trifluoromethyl pyridone as starting material.
    Type: Grant
    Filed: May 24, 2010
    Date of Patent: February 19, 2013
    Assignee: Central South University
    Inventors: Gaoyun Hu, Lijian Tao, Jun Chen
  • Crystalline 1-(3-fluorophenyl)-5-methyl-2-(1H)pyridone, the preparation methods, compositions and applications thereof
    Patent number: 8232408
    Abstract: Crystalline pyridone compound, which is the white needle crystal containing no water and other crystallization solvents. Its unit cell belongs to monoclinic system and has space group of P21/n, wherein a=3.8512(2), b=20.2535(12), c=12.1628(6) ?, ?=92.850(5)° and crystal cell volume V=947.53(9) ?3. Pyridone compound crystal of this form has the needed properties for preparing or making treatment compositions in large scale. It can be used for treating organs fibrosis of liver, kidney, lung and etc. and reducing skin scars.
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: July 31, 2012
    Assignee: Sunshine Lake Pharma Co., Ltd.
    Inventors: Jiamei Chen, Tongbu Lu, Song Chen, Jinghui Cai, Zhaolin Fu, Zhe He, Xuefeng Wang, Chaozhi Wang, Yonge Liu, Lijian Tao, Gaoyun Hu
  • PREPARATION OF 1-(SUBSTITUTED ARYL)-5-TRIFLUOROMETHYL-2-(1H)PYRIDONE COMPOUNDS AND SALTS THEREOF AND THEIR APPLICATIONS
    Publication number: 20120142688
    Abstract: A 1-(substituted aryl)-5-trifluoromethyl-2-(1H)pyridone compounds and pharmaceutical acceptable salts, preparation methods and uses for preparing the drugs for treating fibrosis thereof.
    Type: Application
    Filed: May 24, 2010
    Publication date: June 7, 2012
    Applicant: CENTRAL SOUTH UNIVERSITY
    Inventors: Gaoyun Hu, Lijian Tao, Jun Chen
  • PREPARATION OF 1-(SUBSTITUTED BENZYL)-5-TRIFLUOROMETHYL-2(1H)PYRIDONE COMPOUNDS AND SALTS THEREOF AND THEIR APPLICATIONS
    Publication number: 20120129859
    Abstract: 1-(substituted benzyl)-5-trifluoromethyl-2(1H)pyridone compounds and their pharmaceutical acceptable salts are disclosed. The preparation methods of the compounds and their salts and the use of the same for preparing the medicaments for treating fibrosis are also disclosed. New pyridine compounds and their salts are obtained from trifluoromethyl pyridone as starting material.
    Type: Application
    Filed: May 24, 2010
    Publication date: May 24, 2012
    Inventors: Gaoyun Hu, Lijian Tao, Jun Chen
  • CRYSTALLINE 1-(3-FLUOROPHENYL)-5-METHYL-2-(1H)PYRIDONE, THE PREPARATION METHODS, COMPOSITIONS AND APPLICATIONS THEREOF
    Publication number: 20110003864
    Abstract: Crystalline pyridone compound, which is the white needle crystal containing no water and other crystallization solvents. Its unit cell belongs to monoclinic system and has space group of P21/n, wherein a=3.8512(2), b=20.2535(12), c=12.1628(6) ?, ?=92.850(5)° and crystal cell volume V=947.53(9) ?3. Pyridone compound crystal of this form has the needed properties for preparing or making treatment compositions in large scale. It can be used for treating organs fibrosis of liver, kidney, lung and etc. and reducing skin scars.
    Type: Application
    Filed: March 10, 2009
    Publication date: January 6, 2011
    Applicant: HEC GROUP
    Inventors: Jiamei Chen, Tongbu Lu, Song Chen, Jinghui Cai, Zhaolin Fu, Zhe He, Xuefeng Wang, Chaozhi Wang, Yonge Liu, Lijian Tao, Gaoyun Hu