Patents by Inventor Liqing Xu

Liqing Xu 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).

  • Patent number: 11511983
    Abstract: Provided is a liquid collecting device, which comprises a collecting container, wherein the collecting container is provided with a diversion cavity for diverting a body fluid collected; on a wall of the collecting container, at least one jacket cavity configured to store a storage liquid is provided, the jacket cavity is provided around the diversion cavity, and the jacket cavity extends along an axial direction of the diversion cavity, and a cross section of the jacket cavity is annular; and the diversion cavity has an inflow port and an outflow port, and an aperture of the inflow port is larger than that of the outflow port.
    Type: Grant
    Filed: December 24, 2019
    Date of Patent: November 29, 2022
    Assignee: LINKGEN BIOTECH SHANGHAI CO., LTD.
    Inventors: Zhongqi Yin, Weiwei Li, Liqing Xu, Jin Pan
  • Publication number: 20210070598
    Abstract: Provided is a liquid collecting device, which comprises a collecting container, wherein the collecting container is provided with a diversion cavity for diverting a body fluid collected; on a wall of the collecting container, at least one jacket cavity configured to store a storage liquid is provided, the jacket cavity is provided around the diversion cavity, and the jacket cavity extends along an axial direction of the diversion cavity, and a cross section of the jacket cavity is annular; and the diversion cavity has an inflow port and an outflow port, and an aperture of the inflow port is larger than that of the outflow port.
    Type: Application
    Filed: December 24, 2019
    Publication date: March 11, 2021
    Inventors: Zhongqi YIN, Weiwei LI, Liqing XU, Jin PAN
  • Patent number: 8560476
    Abstract: A computer-aided lean management (CALM) controller system recommends actions and manages production in an oil and gas reservoir/field as its properties and conditions change with time. The reservoir/field is characterized and represented as an electronic-field (“e-field”). A plurality of system applications describe dynamic and static e-field properties and conditions. The application workflows are integrated and combined in a feedback loop between actions taken in the field and metrics that score the success or failure of those actions. A controller/optimizer operates on the combination of the application workflows to compute production strategies and actions. The controller/optimizer is configured to generate a best action sequence for production, which is economically “always-in-the-money.
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: October 15, 2013
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Roger N. Anderson, Albert Boulanger, Wei He, Ulisses Mello, Liqing Xu
  • Publication number: 20080294387
    Abstract: A computer-aided lean management (CALM) controller system recommends actions and manages production in an oil and gas reservoir/field as its properties and conditions change with time. The reservoir/field is characterized and represented as an electronic-field (“e-field”). A plurality of system applications describe dynamic and static e-field properties and conditions. The application workflows are integrated and combined in a feedback loop between actions taken in the field and metrics that score the success or failure of those actions. A controller/optimizer operates on the combination of the application workflows to compute production strategies and actions. The controller/optimizer is configured to generate a best action sequence for production, which is economically “always-in-the-money.
    Type: Application
    Filed: January 24, 2008
    Publication date: November 27, 2008
    Inventors: Roger N. Anderson, Albert Boulanger, Wei He, Ulisses Mello, Liqing Xu
  • Patent number: 5586082
    Abstract: The invention utilizes 3-D and 4-D seismic surveys as a means of deriving information useful in petroleum exploration and reservoir management. The methods use both single seismic surveys (3-D) and multiple seismic surveys separated in time (4-D) of a region of interest to determine large scale migration pathways within sedimentary basins, and fine scale drainage structure and oil-water-gas regions within individual petroleum producing reservoirs. Such structure is identified using pattern recognition tools which define the regions of interest. The 4-D seismic data sets may be used for data completion for large scale structure where time intervals between surveys do not allow for dynamic evolution. The 4-D seismic data sets also may be used to find variations over time of small scale structure within individual reservoirs which may be used to identify petroleum drainage pathways, oil-water-gas regions and, hence, attractive drilling targets.
    Type: Grant
    Filed: March 2, 1995
    Date of Patent: December 17, 1996
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Roger N. Anderson, Albert Boulanger, Edward P. Bagdonas, Liqing Xu, Wei He