Patents by Inventor Wei Chan

Wei Chan 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: 20260156016
    Abstract: A method for network split tunneling, a storage medium, and an electronic device are provided. The method includes: acquiring request traffic and determining a target object for split tunneling corresponding to the request traffic based on the request traffic; determining whether the target object belongs to pre-configured objects for split tunneling; and in response to determining that the target object belongs to the pre-configured objects, querying, based on mapping relationships between the pre-configured objects and VPN tunnels, a target VPN tunnel corresponding to the target object, and forwarding the request traffic to a tunnel node corresponding to the target VPN tunnel.
    Type: Application
    Filed: May 22, 2023
    Publication date: June 4, 2026
    Applicant: GEARUP PORTAL PTE. LTD.
    Inventors: Tianjiao YANG, Zhouye WEI, Jieyang YANG, Wei CHAN
  • Publication number: 20250270273
    Abstract: Provided is a conjugate comprising interferon-gamma (IFN-gamma) covalently attached to a water-soluble polymer at a cysteine residue of the IFN-gamma, more particularly, at the sulfur atom of the cysteine, where the interferon-gamma is a mutein comprising a cysteine that has been substituted for an amino acid of the IFN-gamma or has been inserted into the IFN-gamma sequence (“cysteine mutein of IFN-gamma”). In preferred embodiments, the water-soluble polymer is a poly(alkylene oxide). More preferably, the water-soluble polymer is a poly(ethylene glycol).
    Type: Application
    Filed: July 12, 2022
    Publication date: August 28, 2025
    Inventors: Deborah H. Charych, Dawei Sheng, Jicai Huang, Wei Chan, Damon Justin Hamel
  • Publication number: 20240358823
    Abstract: Methods for the production of immunogenic compositions containing a non-natural amino acid are disclosed. The non-natural amino acid can be a site for attachment of antigens, such as bacterial capsular polysaccharides, to make immunogenic conjugates. Bio-orthogonal attachment chemistry incorporated into the non-natural amino acids allows for more efficient and potent antigen presentation to the immune system, simplified purification, and more well-defined structure of these semi-synthetic immunogens.
    Type: Application
    Filed: February 6, 2024
    Publication date: October 31, 2024
    Inventors: Jeffery C. FAIRMAN, Jon H. HEINRICHS, Wei CHAN
  • Publication number: 20240342274
    Abstract: Methods for the production of immunogenic compositions containing a non-natural amino acid are disclosed. The non-natural amino acid can be a site for attachment of antigens, such as bacterial capsular polysaccharides, to make immunogenic conjugates. Bio-orthogonal attachment chemistry incorporated into the non-natural amino acids allows for more efficient and potent antigen presentation to the immune system, simplified purification, and more well-defined structure of these semi-synthetic immunogens.
    Type: Application
    Filed: April 16, 2024
    Publication date: October 17, 2024
    Inventors: Jeffery FAIRMAN, Jon H. HEINRICHS, Wei CHAN
  • Patent number: 11998599
    Abstract: Methods for the production of immunogenic compositions containing a non-natural amino acid are disclosed. The non-natural amino acid can be a site for attachment of antigens, such as bacterial capsular polysaccharides, to make immunogenic conjugates. Bio-orthogonal attachment chemistry incorporated into the non-natural amino acids allows for more efficient and potent antigen presentation to the immune system, simplified purification, and more well-defined structure of these semi-synthetic immunogens.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: June 4, 2024
    Assignee: Vaxcyte, Inc.
    Inventors: Jeffery Fairman, Jon H. Heinrichs, Wei Chan
  • Patent number: 11951165
    Abstract: Methods for the production of immunogenic compositions containing a non-natural amino acid are disclosed. The non-natural amino acid can be a site for attachment of antigens, such as bacterial capsular polysaccharides, to make immunogenic conjugates. Bio-orthogonal attachment chemistry incorporated into the non-natural amino acids allows for more efficient and potent antigen presentation to the immune system, simplified purification, and more well-defined structure of these semi-synthetic immunogens.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: April 9, 2024
    Assignee: Vaxcyte, Inc.
    Inventors: Jeffery C. Fairman, Jon H. Heinrichs, Wei Chan
  • Publication number: 20200054739
    Abstract: Methods for the production of immunogenic compositions containing a non-natural amino acid are disclosed. The non-natural amino acid can be a site for attachment of antigens, such as bacterial capsular polysaccharides, to make immunogenic conjugates. Bio-orthogonal attachment chemistry incorporated into the non-natural amino acids allows for more efficient and potent antigen presentation to the immune system, simplified purification, and more well-defined structure of these semi-synthetic immunogens.
    Type: Application
    Filed: July 1, 2019
    Publication date: February 20, 2020
    Inventors: Jeffery C. FAIRMAN, Jon H. HEINRICHS, Wei CHAN, Olivier Jean Gérard MARCQ, Christopher R. Behrens
  • Publication number: 20180333484
    Abstract: Methods for the production of immunogenic compositions containing a non-natural amino acid are disclosed. The non-natural amino acid can be a site for attachment of antigens, such as bacterial capsular polysaccharides, to make immunogenic conjugates. Bio-orthogonal attachment chemistry incorporated into the non-natural amino acids allows for more efficient and potent antigen presentation to the immune system, simplified purification, and more well-defined structure of these semi-synthetic immunogens.
    Type: Application
    Filed: December 29, 2017
    Publication date: November 22, 2018
    Applicant: SUTROVAX, INC.
    Inventors: Jeff Fairman, Jon Heinrichs, Wei Chan
  • Publication number: 20130253210
    Abstract: The present invention reported that SFE is suitable for Nigella sativa seeds oil extraction and fractionation. TQRF that were produced through SFE extractions (600 bars/40° C.) and fractionations (100-200 bars/40-60° C.) possessed high level of TQ and antioxidant activity. SFE fractionation efficiently concentrates the TQ content and antioxidant activity of Nigella sativa seeds oil in short time and low cost manners without using any hazardous organic solvents.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 26, 2013
    Applicant: UNIVERSITI PUTRA MALAYSIA
    Inventors: Maznah ISMAIL, Ghanya AL-NAQEEB, Wei Chan, Nurzatul Efa Adnan
  • Patent number: 8324149
    Abstract: Methods are provided for the utilization of bacterial cell-free extracts in the synthesis of high yields of virus like particles with encapsidated cargo.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: December 4, 2012
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Bradley C. Bundy, James R. Swartz, Wei Chan
  • Publication number: 20100167981
    Abstract: Methods are provided for the utilization of bacterial cell-free extracts in the synthesis of high yields of virus like particles with encapsidated cargo.
    Type: Application
    Filed: November 18, 2009
    Publication date: July 1, 2010
    Inventors: Bradley C. Bundy, James R. Swartz, Wei Chan
  • Publication number: 20060249501
    Abstract: An oven is provided for curing or reflowing compounds on objects, such as lead frames or other substrates. The oven comprises a heating chamber, a heating assembly mounted in thermal communication with the heating chamber to provide heat thereto, and a support assembly for supporting the object in the heating chamber for heating. The heating assembly and support assembly are configured to be movable relative to one another for controllably positioning the object at variable distances with respect to the heating assembly. Heating of the object according to a heating profile can thus be achieved by controlled heating of the object at different temperatures by positioning the object at different distances with respect to the heating assembly during the heating process although there is a single heating zone.
    Type: Application
    Filed: April 29, 2005
    Publication date: November 9, 2006
    Inventors: Kin Hung, Srikanth Narasimalu, Wei Chan, Man Chan, Cheuk Tang, Kai Wu
  • Publication number: 20060226923
    Abstract: Present invention relates to an oscillator circuit comprising: resonator means (102) and, first and second emitter followers (116, 118) being symmetrically coupled to the resonator means and been connected to further emitter followers (120, 122) for providing capacitive loading.
    Type: Application
    Filed: February 10, 2004
    Publication date: October 12, 2006
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V. GROENEWOUDSEWEG 1
    Inventors: Hugo Veenstra, Edwin Van Der Heijden, Wei Chan