Patents by Inventor Rongzhi LI

Rongzhi 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).

  • Systems and methods for indoor positioning
    Patent number: 11965744
    Abstract: The present disclosure is related to systems and methods for indoor positioning. The method includes obtaining a first location of a subject at a first time point. The method also includes determining one or more motion parameters associated with the subject at least based on one or more sensors carried by the subject. The method further includes determining, based on the first location of the subject and the one or more motion parameters associated with the subject, a second location of the subject at a second time point after the first time point. The method still further includes adjusting, at least based on surroundings information associated with the subject at the second time point, the second location of the subject to determine a target location of the subject.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: April 23, 2024
    Assignee: BEIJING DIDI INFINITY TECHNOLOGY AND DEVELOPMENT CO., LTD.
    Inventors: Xiaoqiang Teng, Rongzhi Wang, Jiankuan Li, Zhiwei Ruan, Zongyue Liu, Jun Zhang, Pengfei Xu, Shenggang Bao, Chao Liu
  • Rigid thermal protection composition
    Patent number: 11519364
    Abstract: A polymer composite composition for use in high temperature applications such as furnaces, heat shields and aeronautical jet and rocket motors. In a particular application, the disclosed composition is applied to the manufacture of rocket motor cases, or parts thereof, to provide rigid thermal protection (RTP). The polymer composite composition comprises cyanate ester resin, fine lengths of carbon fibre and refractory filler material.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: December 6, 2022
    Assignee: The Commonwealth of Australia
    Inventor: Rongzhi Li
  • RIGID THERMAL PROTECTION COMPOSITION
    Publication number: 20200308399
    Abstract: A polymer composite composition for use in high temperature applications such as furnaces, heat shields and aeronautical jet and rocket motors. In a particular application, the disclosed composition is applied to the manufacture of rocket motor cases, or parts thereof, to provide rigid thermal protection (RTP). The polymer composite composition comprises cyanate ester resin, fine lengths of carbon fibre and refractory filler material.
    Type: Application
    Filed: October 12, 2018
    Publication date: October 1, 2020
    Inventor: Rongzhi LI