Patents by Inventor Chaofeng WANG

Chaofeng 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).

  • Publication number: 20240425629
    Abstract: A polyfluoroalkoxy resin and a method of preparing the same. The method includes: S1: charging deionized water, an organic solvent, a surfactant, and a chain transfer agent to a polymerization kettle; S2: after heating to a set temperature ranging from 50° C. to 80° C., charging an appropriate amount of polymerization monomer consisting of tetrafluoroethylene and perfluoroalkyl vinyl ether till reaching a set pressure ranging from 0.7 MPa to 1.5 MPa, followed by charging an initiator to start reaction; S3: adding additional polymerization monomer and perfluoroalkyl vinyl ether polymerization promoter, and maintaining the pressure in the polymerization kettle till end of reaction, whereby a polyfluoroalkoxy emulsion is obtained; S4: condensing, washing, and pelleting the polyfluoroalkoxy emulsion from step S3 to obtain the polyfluoroalkoxy resin.
    Type: Application
    Filed: June 28, 2024
    Publication date: December 26, 2024
    Applicant: JINHUA YONGHE FLUOROCHEMICAL CO., LTD.
    Inventors: Jingping ZHAO, Ziliang Guo, Chaofeng Wang, Huajie Tu, Lei Yang, Jian Zhu
  • Publication number: 20230129978
    Abstract: Disclosed is a method for causal inference based on collective movement of active group, comprising obtaining leader time series and follower time series of the collective movement of the active group; obtaining fixed time lag, obtaining optimal fixed time lag based on the fixed time lag, obtaining aligned time lag series based on the leader time series and follower time series; relaxing the fixed time lag, updating the optimal fixed time lag based on the relaxed results; obtaining optimal aligned time lag series based on the aligned time lag series and the updated optimal fixed time lag; distorting the leader time series and the follower time series based on the optimal aligned time lag series; performing Grange Causality inference on the distorted leader time series and follower time series to obtain results of Granger Causality inference of the collective movement of the active group.
    Type: Application
    Filed: August 16, 2022
    Publication date: April 27, 2023
    Inventors: Yaping WAN, Xiaohua YANG, Zhenghai LIU, Tiejun ZENG, Yu MAO, Panpan JIANG, Mingxing NIE, Chunping OUYANG, Chaofeng WANG, Lifang ZHOU