Patents by Inventor Xiqiang Li

Xiqiang 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).

  • Aryl-substituted saccharides or glycosides and use thereof in a drilling fluid composition
    Patent number: 11952530
    Abstract: An aryl-substituted saccharide or glycoside or a mixture of a plurality of aryl-substituted saccharides or glycosides have at least good resistance to high temperatures and salt, and lower filtration loss. These aryl-substituted saccharide or glycoside are used in making a drilling fluid composition. The aryl-substituted saccharide or glycoside or the mixture of a plurality of aryl-substituted saccharides or glycosides each or in combination bears a substituent A and a substituent B, wherein the substituent A contains a unit —O—R6— in its structure and the substituent B contains a unit in its structure, and the substituents and the numbers are defined in the description.
    Type: Grant
    Filed: November 29, 2019
    Date of Patent: April 9, 2024
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, Sinopec Petroleum Engineering Technology Service Co., Ltd., Drilling Engineering Technology Research Institute of Sinopec Zhongyuan Petroleum Engineering Co., LTD, SINOPEC ZHONGYUAN PETROLEUM ENGINEERING CO., LTD
    Inventors: Xiqiang Si, Zhonghua Wang, Weiting Li, Jun Wei, Zhongjin Wang, Yuebin Lv
  • Use of compounds extracted from L. in the manufacture of medicaments for prevention and treatment of diabetes and obesity
    Patent number: 8722634
    Abstract: The present invention disclosed a medical use of cucurbitane triterpenoids represented by the following formula and isolated from Momordica charantia L. of Cucurbitaceae family in the preparation of medications for prevention and treatment of diabetes and obesity. The above cucurbitane triterpenoids may be acted as a glucose uptake stimulator, an agonist for the translocation of glucose transporter 4 (GLUT4) to the cell membrane, and an activator of adenosine monophosphate-activated protein kinase (AMPK). They may have potential for the prevention and treatment of diabetes and obesity.
    Type: Grant
    Filed: January 14, 2009
    Date of Patent: May 13, 2014
    Assignees: Shanghai Institute of Materia Medica, Chinese Academy of Sciences, The Garvan Institute of Medical Research, Australia
    Inventors: Yang Ye, Minjia Tan, Changqiang Ke, Tong Chen, Xiqiang Li, Edward Kraegen, Jiming Ye, David James, Gregory Cooney
  • Use of Compounds Extracted from Momordica Charantia L. in the Manufacture of Medicaments for Prevention and Treatment of Diabetes and Obesity
    Publication number: 20110152208
    Abstract: The present invention disclosed a medical use of cucurbitane triterpenoids represented by the following formula and isolated from Momordica charantia L. of Cucurbitaceae family in the preparation of medications for prevention and treatment of diabetes and obesity. The above cucurbitane triterpenoids may be acted as a glucose uptake stimulator, an agonist for the translocation of glucose transporter 4(GLUT4) to the cell membrane, and an activator of adenosine monophosphate-activated protein kinase (AMPK). They may have potential for the prevention and treatment of diabetes and obesity.
    Type: Application
    Filed: January 14, 2009
    Publication date: June 23, 2011
    Applicants: Shanghai Institute of Materia Medica, Chinese Academy of Sciences, The Garvan Institute of Medical Research, Australia
    Inventors: Yang Ye, David E. James, Minjia Tan, Gregory J. Cooney, Changqiang Ke, Edward W. Kraegen, Tong Chen, Jiming Ye, Xiqiang Li