Patents by Inventor Liangsheng Yang

Liangsheng Yang 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).

  • On-line enzymatic digestion in separation-detection methods
    Patent number: 7422866
    Abstract: Apparatus and methods are disclosed for digesting a biopolymer in a medium. The medium is disposed adjacent a wall of a hollow element wherein at least a portion of the wall is porous. The medium is then exposed to digestion conditions to cleave the biopolymer into fragments. The fragments are permitted to permeate through the wall of the hollow element. In some embodiments a surface of a wall of the hollow element comprises a digestion agent. In some embodiments the hollow element is disposed within a hollow liner. For analysis and identification purposes, the fragments may be separated and/or detected.
    Type: Grant
    Filed: August 10, 2005
    Date of Patent: September 9, 2008
    Assignee: Agilent Technologies, Inc.
    Inventors: Zhenghua Ji, Li Ping Hu, legal representative, Barry E. Boyes, Liangsheng Yang
  • On-line enzymatic digestion in separation-detection methods
    Publication number: 20070037242
    Abstract: Apparatus and methods are disclosed for digesting a biopolymer in a medium. The medium is disposed adjacent a wall of a hollow element wherein at least a portion of the wall is porous. The medium is then exposed to digestion conditions to cleave the biopolymer into fragments. The fragments are permitted to permeate through the wall of the hollow element. In some embodiments a surface of a wall of the hollow element comprises a digestion agent. In some embodiments the hollow element is disposed within a hollow liner. For analysis and identification purposes, the fragments may be separated and/or detected.
    Type: Application
    Filed: August 10, 2005
    Publication date: February 15, 2007
    Inventors: Zhenghua Ji, Liangsheng Yang, Li Hu, Barry Boyes