Patents by Inventor Jiuwei Yuan

Jiuwei Yuan 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: 20230139200
    Abstract: A cosmetics container, includes a housing, a bottom, an inner bottom, a lower elastic element, a button, and a middle sleeve thereof. The pressing area is provided on the housing. The bottom sleeve is provided inside of the housing, and the inner bottom is provided inside of the bottom sleeve. The lower elastic element is provided inside of the bottom sleeve and is located at a lower surface of the inner bottom. The middle sleeve is provided inside of the housing and is located at an upper surface of the inner bottom. The middle sleeve is provided with an upper elastic element, which abuts against the button. The button includes an upper rim, a pressing piece, and a lower rim thereof. The pressing piece is located in the middle between the upper rim and the lower rim and is provided at the pressing area.
    Type: Application
    Filed: December 16, 2019
    Publication date: May 4, 2023
    Inventors: Jiuwei YUAN, Feng ZHOU, Hong SHEN, Xiaohua CUI, Sili ZENG, Ying YANG
  • Publication number: 20220325366
    Abstract: A sugar drawing apparatus and a polyether polyol production system comprising same. The sugar drawing apparatus comprises: a sugar storage container, a feed port being provided on the upper end of the sugar storage container and a sugar storage cavity being provided within the sugar storage container: a drawing pipeline having one end extending into the sugar storage cavity and the other end thereof extending out of the sugar storage container and communicated with a reaction container, and used for transferring sugar in the sugar storage cavity into the reaction container, and a sleeve sleeved on the outside of the drawing pipeline, one end of the sleeve extending into the sugar storage cavity and the other end thereof extending out of the sugar storage container and communicated with ambient air, and a flow channel for air to flow through being reserved between the sleeve and the drawing pipeline.
    Type: Application
    Filed: March 23, 2020
    Publication date: October 13, 2022
    Inventors: Junjian Fan, Cheng Wu, Jiuwei Yuan, Zhijun Li, Yubo Li