Patents by Inventor Xingchen BIAN

Xingchen BIAN 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).

  • Polymyxin B component or salt thereof, and preparation and application thereof
    Patent number: 11440940
    Abstract: A polymyxin B component or salts thereof, and a preparation and application thereof. The polymyxin B component includes six ?,?-diaminobutyric acids respectively at positions 1, 3-5 and 8-9, two threonine residues at positions 2 and 10, a phenylalanine residue at position 6 and a leucine residue at position 7 linked in sequence. The threonine residue at position 10 is linked to the ?,?-diaminobutyric acid at position 4 by an amido bond, and the ?,?-diaminobutyric acid at position 1 is linked to 6-methyloctyl-2-enoyl.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: September 13, 2022
    Assignee: SPH NO. 1 BIOCHEMICAL & PHARMACEUTICAL CO., LTD.
    Inventors: Hanzhi Zhang, Hao Liu, Zhenhui Huang, Ning Sun, Wenyan Luo, Jinguo Ding, Xiaofen Liu, Xingchen Bian
  • POLYMYXIN B COMPONENT OR SALT THEREOF, AND PREPARATION AND APPLICATION THEREOF
    Publication number: 20210206807
    Abstract: A polymyxin B component or salts thereof, and a preparation and application thereof. The polymyxin B component includes six ?,?-diaminobutyric acids respectively at positions 1, 3-5 and 8-9, two threonine residues at positions 2 and 10, a phenylalanine residue at position 6 and a leucine residue at position 7 linked in sequence. The threonine residue at position 10 is linked to the ?,?-diaminobutyric acid at position 4 by an amido bond, and the ?,?-diaminobutyric acid at position 1 is linked to 6-methyloctyl-2-enoyl.
    Type: Application
    Filed: February 26, 2021
    Publication date: July 8, 2021
    Inventors: Hanzhi ZHANG, Hao LIU, Zhenhui HUANG, Ning SUN, Wenyan LUO, Jinguo DING, Xiaofen LIU, Xingchen BIAN