Patents by Inventor Zhengjun Chen

Zhengjun Chen 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: 11963618
    Abstract: A foldable electric bed frame is provided which comprises a bottom frame and a push rod; a first board and a second board hinged to each other are disposed on the top of the bottom frame, one end of the push rod is rotatably connected to a side edge of the second board through a connection device which comprises a height adjusting piece and a height locking piece; a distance from the height adjusting piece to the second board in a working state is larger than a distance from the height adjusting piece to the second board in a folded state, and the height locking piece locks a position of the height adjusting piece in the working state.
    Type: Grant
    Filed: October 22, 2021
    Date of Patent: April 23, 2024
    Assignee: FLEXISPOT, INC.
    Inventors: Lehong Xiang, Tao Lin, Zhengjun Chen
  • Publication number: 20230086736
    Abstract: The present disclosure provides a microemulsion-based vaccine delivery system, and further provides a preparation method and an application thereof. Using the microemulsion absorbing a series of metal ion compounds, and adding an antigen in a preparation process, antigen entrapment can be realized and a stable vaccine preparation is obtained. The prepared vaccine can effectively be taken up by an antigen-presenting cell and effectively delivered to lymph nodes to induce an antigen-specific immune response, and the same has a wide application prospect.
    Type: Application
    Filed: April 12, 2021
    Publication date: March 23, 2023
    Inventors: Xun SUN, Zhengjun CHEN, Tao GONG, Zhirong ZHANG
  • Publication number: 20230000258
    Abstract: A foldable electric bed frame is provided which comprises a bottom frame and a push rod; a first board and a second board hinged to each other are disposed on the top of the bottom frame, one end of the push rod is rotatably connected to a side edge of the second board through a connection device which comprises a height adjusting piece and a height locking piece; a distance from the height adjusting piece to the second board in a working state is larger than a distance from the height adjusting piece to the second board in a folded state, and the height locking piece locks a position of the height adjusting piece in the working state to solve the problem of an increased thickness of a folded bed board resulting from increase of an angle of inclination of a push rod in the prior art.
    Type: Application
    Filed: October 22, 2021
    Publication date: January 5, 2023
    Inventors: Lehong XIANG, Tao LIN, Zhengjun CHEN
  • Publication number: 20080051556
    Abstract: Nucleic acid molecules encoding full length PTP20, PCP-2, BDP1, mCLK2, mCLK3, mCLK4, and SIRP polypeptides, portions of such nucleic acid molecules, nucleic acid vectors containing such nucleic acid molecules, recombinant cells containing such nucleic acid vectors, polypeptides purified from such recombinant cells, antibodies to such polypeptides, and methods of identifying compounds that bind such polypeptides or abrogate their interactions with natural binding partners. Methods for diagnosing abnormal conditions in an organism with PTP20, PCP-2, BDP1, mCLK2, mCLK3, mCLK4, and SIRP related molecules or compounds. PTP20, PCP-2, BDP1, mCLK2, mCLK3, mCLK4, or SIRP polypeptides, nucleic acids encoding such polypeptides, cells, tissues and animals containing such nucleic acids, antibodies to such polypeptides, assays utilizing such polypeptides, and methods relating to all of the foregoing.
    Type: Application
    Filed: June 16, 2005
    Publication date: February 28, 2008
    Inventors: Axel Ullrich, Naohito Aoki, Yeong Woong Kim, Hong Yang Wang, Zhengjun Chen, Oliver Nayler, Alexei Kharitonenkov
  • Patent number: 7074589
    Abstract: Nucleic acid molecules encoding full length PTP20, PCP-2, BDP1, mCLK2, mCLK3, mCLK4, and SIRP polypeptides, portions of such nucleic acid molecules, nucleic acid vectors containing such nucleic acid molecules, recombinant cells containing such nucleic acid vectors, polypeptides purified from such recombinant cells, antibodies to such polypeptides, and methods of identifying compounds that bind such polypeptides or abrogate their interactions with natural binding partners. Methods for diagnosing abnormal conditions in an organism with PTP20, PCP-2, BDP1, mCLK2, mCLK3, mCLK4, and SIRP related molecules or compounds. PTP20, PCP-2, BDP1, mCLK2, mCLK3, mCLK4, or SIRP polypeptides, nucleic acids encoding such polypeptides, cells, tissues and animals containing such nucleic acids, antibodies to such polypeptides, assays utilizing such polypeptides, and methods relating to all of the foregoing.
    Type: Grant
    Filed: June 17, 1997
    Date of Patent: July 11, 2006
    Assignee: Max-Planck-Gesellschaft zur Forderung der Wissenschaften E.V.
    Inventors: Axel Ullrich, Naohito Aoki, Yeong Woong Kim, Hong Yang Wang, Zhengjun Chen, Oliver Nayler, Alexei Kharitonenkov
  • Patent number: 6913894
    Abstract: Monoclonal antibodies which bind specifically to the extracellular domain of the SIRP cell surface glycoproteins, and which, in some cases, block the interaction of SIRP with the surface molecule CD47, are described.
    Type: Grant
    Filed: May 29, 2002
    Date of Patent: July 5, 2005
    Assignee: Eberhard-Karls-Universitat Tubingen Universitatsklinikum
    Inventors: Hans-Jörg Bühring, Axel Ullrich, Zhengjun Chen, Charles Cant
  • Publication number: 20030109002
    Abstract: The present invention features isolated, purified, or enriched nucleic acid encoding a SIRP polypeptide and isolated, purified, or enriched SIRP polypeptide and uses thereof.
    Type: Application
    Filed: November 8, 2002
    Publication date: June 12, 2003
    Applicant: Max-Planck-Gesellschaft Zur Foderung Der Wissenschaften E.V.
    Inventors: Axel Ullrich, Alexei Kharitonenkov, Zhengjun Chen
  • Publication number: 20030054415
    Abstract: Monoclonal antibodies which bind specifically to the extracellular domain of the SIRP cell surface glycoproteins, and which, in some cases, block the interaction of SIRP with the surface molecule CD47, are described.
    Type: Application
    Filed: May 29, 2002
    Publication date: March 20, 2003
    Inventors: Hans-Jorg Buhring, Axel Ullrich, Zhengjun Chen, Charles Cant
  • Publication number: 20020169303
    Abstract: Nucleic acid molecules encoding full length PTP20, PCP-2, BDP1, mCLK2, mCLK3, mCLK4, and SIRP polypeptides, portions of such nucleic acid molecules, nucleic acid vectors containing such nucleic acid molecules, recombinant cells containing such nucleic acid vectors, polypeptides purified from such recombinant cells, antibodies to such polypeptides, and methods of identifying compounds that bind such polypeptides or abrogate their interactions with natural binding partners. Methods for diagnosing abnormal conditions in an organism with PTP20, PCP-2, BDP1, mCLK2, mCLK3, mCLK4, and SIRP related molecules or compounds. PTP20, PCP-2, BDP1, mCLK2, mCLK3, mCLK4, or SIRP polypeptides, nucleic acids encoding such polypeptides, cells, tissues and animals containing such nucleic acids, antibodies to such polypeptides, assays utilizing such polypeptides, and methods relating to all of the foregoing.
    Type: Application
    Filed: March 5, 2002
    Publication date: November 14, 2002
    Applicant: Max-Planck-Gesellschaft Zur Forderung Der Wissenschaften, E.V.
    Inventors: Axel Ullrich, Naohito Aoki, Yeong Woong Kim, Hong Yang Wang, Zhengjun Chen, Oliver Nayler, Alexei Kharitonenkov