Patents by Inventor Shiqiang Feng

Shiqiang Feng 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).

  • SPLIT TYPE BOLT AND MANUFACTURING AND APPLICATION THEREOF
    Publication number: 20220282749
    Abstract: A split type bolt includes a bolt cap and a screw rod. The bolt cap is composed of a plurality of bolt cap split parts, and the screw rod is composed of a screw rod base and a plurality of screw rod split parts. A gap is formed between adjacent bolt cap split parts and is filled with a filling material, and a gap is formed between adjacent screw rod split parts and is not filled. A method for manufacturing the split type bolt includes the steps of cutting an incomplete through gap from the bolt cap to the screw rod of a high strength bolt by a machine tool, and arranging the filling material in the through gap formed in the bolt cap.
    Type: Application
    Filed: March 3, 2022
    Publication date: September 8, 2022
    Inventors: Yong Yang, Shuchen Zhang, Xin Chen, Shiqiang Feng, Longkang Xu, Bin Liu
  • Preparation process of a complex oxide catalyst and application thereof to the synthesis of the acrylic acid
    Patent number: 8623780
    Abstract: The present invention provides a complex oxide catalyst whose general formula is Mo12VaCubWcXdYeOf/Z. reducing agent needs to be added into the catalyst during the preparation process of the active component of the catalyst and (or) molding process of the catalyst. Specifically, X is at least one selected from a group consisting of Nb, Sb, Sr, Ba and Te; Y is at least one selected from a group consisting of La, Ce, Nd, Sm and Cs; “a” is ranging from 2 to 8; “b” is ranging from 1 to 6; “c” is ranging from 0.5 to 5; “d” is ranging from 0.01 to 4; “e” is ranging from 0.01 to 4; f is determined by the oxidation state of the component element; Z is silicon powder; the reducing agent is C2˜C6 diol or polyol.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: January 7, 2014
    Assignee: Shanghai Huayi Acrylic Acid Co., Ltd.
    Inventors: Xuemei Li, Chunhua Qin, Kun Jiao, Shiqiang Feng, Yan Zhuang, Jianxue Ma, Xiaodong Zhu, Jingming Shao
  • Preparation process of a complex oxide catalyst and application thereof to the synthesis of the acrylic acid
    Publication number: 20100204513
    Abstract: The present invention provides a complex oxide catalyst whose general formula is Mo12VaCubWcXdYeOf/Z. reducing agent needs to be added into the catalyst during the preparation process of the active component of the catalyst and (or) molding process of the catalyst. Specifically, X is at least one selected from a group consisting of Nb, Sb, Sr, Ba and Te; Y is at least one selected from a group consisting of La, Ce, Nd, Sm and Cs; “a” is ranging from 2 to 8; “b” is ranging from 1 to 6; “c” is ranging from 0.5 to 5; “d” is ranging from 0.01 to 4; “e” is ranging from 0.01 to 4; f is determined by the oxidation state of the component element; Z is silicon powder; the reducing agent is C2˜C6 diol or polyol.
    Type: Application
    Filed: January 20, 2010
    Publication date: August 12, 2010
    Inventors: Xuemei Li, Chunhua Qin, Kun Jiao, Shiqiang Feng, Yan Zhuang, Jianxue Ma, Xiaodong Zhu, Jingming Shao