Patents by Inventor Guoqing Xia

Guoqing Xia 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).

  • Publication number: 20220397332
    Abstract: A refrigerator includes a drain assembly guiding water downward into a water container. The drain assembly includes a drain valve having a valve body, a water inlet and a drain outlet. The water inlet conducts water into, and the drain outlet conducts water out of, the valve body. A water passage between water inlet and drain outlet includes first and second side by side cavities. The drain valve includes a water valve isolating the first cavity from the second cavity or communicating the first and second cavities. The configuration of the water passage and water valve allows the height of the drain assembly to be lowered. During manufacture and assembly of the refrigerator, interference and restriction of the drain assembly upon mounting and assembly of other components are reduced. Gravity of the water valve has less impact on sensitivity of the water valve, and the drain assembly is more sensitive.
    Type: Application
    Filed: June 7, 2022
    Publication date: December 15, 2022
    Inventors: Xiupeng Chen, Guike Shen, Guoqing Xia, Xuan Zhou
  • Patent number: 7531338
    Abstract: 3-OST-5 proteins, and nucleic acid molecules encoding the same. Recombinant host cells, recombinant nucleic acids and recombinant proteins are also disclosed, along with methods of producing each. Isolated and purified antibodies to 3-OST-5 homologs, and methods of producing the same, are also disclosed. 3OST-5 gene products have biological activity in specific heparan sulfate 3-O-sulfotransferase reactions. These reactions provide unique modified heparan sulfate. Thus, therapeutic methods involving this activity are also disclosed.
    Type: Grant
    Filed: July 7, 2003
    Date of Patent: May 12, 2009
    Assignees: The University of North Carolina at Chapel Hill, The Board of Trustees of the University of Illinois
    Inventors: Jian Liu, Guoqing Xia, Jinghua Chen, Michael B. Duncan, Deepak Shukla, Vaibhav Tiwari, Anders Malmstrom
  • Publication number: 20060165673
    Abstract: 3-OST-5 proteins, and nucleic acid molecules encoding the same. Recombinant host cells, recombinant nucleic acids and recombinant proteins are also disclosed, along with methods of producing each. Isolated and purified antibodies to 3-OST-5 homologs, and methods of producing the same, are also disclosed. 3OST-5 gene products have biological activity in specific heparan sulfate 3-O-sulfotransferase reactions. These reactions provide unique modified heparan sulfate. Thus, therapeutic methods involving this activity are also disclosed.
    Type: Application
    Filed: July 7, 2003
    Publication date: July 27, 2006
    Inventors: Jian Liu, Guoqing Xia, Jinghua Chen, Michael Duncan, Deepark Shuka, Vaibhav Tiwari, Anders Malmstrom