Patents by Inventor Weian Wang

Weian Wang 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).

  • Patent number: 10647902
    Abstract: The present invention discloses temporary plugging agent for drilling fluid and preparation method thereof, and water-based drilling fluid and use thereof. The temporary plugging agent for drilling fluid is obtained by controlling gelatinized starch and a vinyl grafted monomer to have a polymerization reaction in an activator solution in the presence of a cross-linking agent and an initiator; the vinyl grafted monomer comprises acrylic acid, acrylamide, and 2-acrylamide-2-methyl propanesulfonic acid; the gelatinized starch is obtained by adding starch into deionized water to have a gelatinization reaction.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: May 12, 2020
    Assignee: CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
    Inventors: Weian Huang, Jingwen Wang, Ming Lei, Jiaqi Zhang, Gongrang Li, Kaihe Lv, Xiongjun Wu, Zhengsong Qiu
  • Patent number: D808430
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: January 23, 2018
    Assignee: SHENZHEN GXY ELECTRONIC CO., LTD.
    Inventor: Weian Wang
  • Patent number: D810133
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: February 13, 2018
    Assignee: SHENZHEN GXY ELECTRONIC CO., LTD.
    Inventor: Weian Wang
  • Patent number: D885361
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: May 26, 2020
    Assignee: Shenzhen GXY Electronic Co., Ltd
    Inventor: Weian Wang
  • Patent number: D898695
    Type: Grant
    Filed: May 27, 2019
    Date of Patent: October 13, 2020
    Assignee: SHENZHEN GXY ELECTRONIC CO., LTD.
    Inventor: Weian Wang