Patents by Inventor Changfeng CHEN

Changfeng CHEN 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: 20230407106
    Abstract: Disclosed are architectural compositions, including aqueous paint and stain compositions, that utilized copolymers including bio-based cross-linking monomers and their synthetic analogues that are comparable to copolymers including DAAM cross-linking monomers. The bio-based cross-linking monomers are preferably synthetic version of the bio-based cross-linking monomers.
    Type: Application
    Filed: July 18, 2023
    Publication date: December 21, 2023
    Inventors: Yong Yang, Gary Dandreaux, Cristian Grigoras, Changfeng Chen, Richard Geurtsen
  • Patent number: 10209678
    Abstract: The invention discloses a pointer type Bluetooth intelligently time-corrected clock movement, comprising a movement body, wherein the bottom of the movement body is provided with a cell box, the surface of the cell box is provided with a disassembling hole, an hourly chiming module is provided at one side of the cell box, a central microprocessor is provided at one side of the hourly chiming module, a Bluetooth communication module is provided at one side of the central microprocessor, a power management circuit is provided at the other side of the cell box, and a display screen is provided at one end of the power management circuit.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: February 19, 2019
    Assignee: DONGGUAN ZHUNDIAN PLASTIC ELECTRONICS CO., LTD.
    Inventors: Xilei Zhao, He Liu, Changfeng Chen
  • Publication number: 20180312937
    Abstract: The invention provides a seamless line pipe with excellent resistance against corrosion by CO2—H2S-SRB. The line pipe comprises, by mass fraction, C: 0.03 to 0.10%, Si: 0.1 to 0.5%, Mn: 0.10% to 1.50%, P: 0.02% or less, S: 0.005% or less, Cr: 1.0 to 4.0%, Ni: 0.1 to 1.5%, Cu: 0.15 to 2.0%, Mo: 0.05 to 0.4%, Ti: 0.01 to 0.05%, RE: 0.05 to 0.1%, and balance of Fe. After smelting, rolling into a billet, and piercing and rolling into a pipe, the resultant steel pipe is heated to 920 to 1000° C. and kept for 0.3 to 1 hour depending on the thickness of the steel pipe wall, and then subjected to rapid cooling and tempering heat treatment. The seamless line pipe can be used in the field of oil and gas fluid transportation and the like.
    Type: Application
    Filed: April 26, 2018
    Publication date: November 1, 2018
    Inventors: Haobo Yu, Changfeng Chen, Zhonghua Zhang, Yanzhao Yu, Yameng Qi, Yuan Kuang, Ruijing Jiang, Xiaolan Jia, Junying Zhang, Lianwu Yu, Yaoheng Liu
  • Publication number: 20180164751
    Abstract: The invention discloses a pointer type Bluetooth intelligently time-corrected clock movement, comprising a movement body, wherein the bottom of the movement body is provided with a cell box, the surface of the cell box is provided with a disassembling hole, an hourly chiming module is provided at one side of the cell box, a central microprocessor is provided at one side of the hourly chiming module, a Bluetooth communication module is provided at one side of the central microprocessor, a power management circuit is provided at the other side of the cell box, and a display screen is provided at one end of the power management circuit.
    Type: Application
    Filed: August 24, 2017
    Publication date: June 14, 2018
    Inventors: Xilei ZHAO, He LIU, Changfeng CHEN