Patents by Inventor Sida CHENG

Sida CHENG 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).

  • PHYTASE MUTANT
    Publication number: 20220154154
    Abstract: The present invention relates to the technical field of biology, in particular to a phytase mutant, a preparation method therefor and an application thereof, a DNA molecule encoding the phytase mutant, a vector, and a host cell. The mutant provided by the present invention contains the substituent of an amino acid at at least one position selected from the following group: 36, 69, 89, 91, 111, 202, 213, 225, 238, 243, 253, 258, and 266. The heat resistance of the mutant is significantly improved, thereby facilitating the wide application of the phytase in feed.
    Type: Application
    Filed: February 11, 2020
    Publication date: May 19, 2022
    Applicant: QINGDAO VLAND BIOTECH GROUP CO., LTD
    Inventors: Xiuxiu WU, Yijun HUANG, Yang LIU, Xia ZHANG, Sida CHENG