Patents by Inventor Yulei Yu

Yulei Yu 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).

  • Transaminase mutant and use thereof
    Patent number: 11952575
    Abstract: A transaminase mutant and use hereof, the amino acid sequence of the transaminase mutant is an amino acid sequence in which the amino acid sequence as represented by SEQ ID NO: 1 is mutated, the mutated amino acid position being one or more selected from among F89, K193, P243, V234, I262, Q280, V379, R416, A417 and C418. The enzymatic activity and/or stability of the transaminase mutant is improved.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: April 9, 2024
    Assignee: ASYMCHEM LIFE SCIENCE (TIANJIN) CO., LTD
    Inventors: Hao Hong, Gage James, Jiangping Lu, Xingfu Xu, Wenyan Yu, Xin Huang, Yulei Ma, Yibing Cheng
  • Integrated device and method for eliminating initial runoff pollution
    Patent number: 10414679
    Abstract: An integrated eliminating device and its method for initial runoff pollution is provided, wherein a plurality of the water receiving pipes for collecting initial runoff are gathered and connected to the first water reservoir, one end of the water inlet pump is connected with the first water reservoir via the water receiving pipes, and the other end of the intake pump is connected with an water inlet opening of the rice field; the rice field is divided into a plurality of sub-parcels in a shape of long stripes, a regulating gate is set. An outlet of the rice field is communicated with the second water reservoir and which is communicated with the water inlet opening of the rice field via the reflux pump.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: September 17, 2019
    Assignee: ZHEJIANG UNIVERSITY
    Inventors: Xinqiang Liang, Guifen Hua, Zhirong Wang, Kejin Zhou, Meiru Li, Yulei Yu, Yi Jin, Liping Lou, Qi Lin, Hua Li, Guangming Tian
  • Integrated device and method for eliminating initial runoff pollution
    Publication number: 20180170778
    Abstract: An integrated eliminating device and its method for initial runoff pollution is provided, wherein a plurality of the water receiving pipes for collecting initial runoff are gathered and connected to the first water reservoir, one end of the water inlet pump is connected with the first water reservoir via the water receiving pipes, and the other end of the intake pump is connected with an water inlet opening of the rice field; the rice field is divided into a plurality of sub-parcels in a shape of long stripes, a regulating gate is set. An outlet of the rice field is communicated with the second water reservoir and which is communicated with the water inlet opening of the rice field via the reflux pump.
    Type: Application
    Filed: January 17, 2017
    Publication date: June 21, 2018
    Inventors: Xinqiang Liang, Guifen Hua, Zhirong Wang, Kejin Zhou, Meiru Li, Yulei Yu, Yi Jin, Liping Lou, Qi Lin, Hua Li, Guangming Tian