Patents by Inventor John Leong

John Leong 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: 6970924
    Abstract: A network performance monitoring system uses a plurality of user modules, each user operating on a unique user machine coupled to one or more provider servers and an experience test server for collecting data from the plurality of user modules. The collected data includes at least one performance datum relating to user experience with a link from the user machine to the provider server. The system also cleanses the collected data to account for variable user configurations, user errors and the like.
    Type: Grant
    Filed: February 23, 1999
    Date of Patent: November 29, 2005
    Assignee: Visual Networks, Inc.
    Inventors: Gigi Chu, Matt Burdick, Shekhar Bhide, Craig Dickson, Sudanshu Verma, John Leong, Chris Davis
  • Publication number: 20050021084
    Abstract: The present invention can provide a bone treatment device, which allows for reinforced security at the bone interface and/or for delivery of a bone treatment material into a bone portion. The bone treatment device can have a shaft member with first and second end portions. A delivery channel can be formed in the shaft member to assist administering a bone treatment material to a predetermined bone portion or tissue. The delivery channel can have a chamber formed in the shaft member and extending from the first end portion toward the second end portion. The delivery channel can also have one or more port members formed on the shaft member and communicating with the chamber.
    Type: Application
    Filed: May 12, 2004
    Publication date: January 27, 2005
    Inventors: William Lu, Keith Luk, John Leong, Shew Chow
  • Patent number: 6593394
    Abstract: A composition for use as a bioactive bone cement having a powder component including strontium-containing hydroxy apatite and formulated to create a settable fluid substance when mixed with a liquid component. The liquid component includes a Bisphenol A diglycidylether dimethacrylate resin which when mixed with the powder component creates a bioactive bone cement. The bioactive bone cement can alternatively be in the form of a two paste component system in which a first paste component including strontium-containing hydroxy apatite, Bisphenol A diglycidylether dimethacrylate resin and a polymerization initiator is formulated to create a settable paste substance when mixed with a second paste component. The second paste component includes strontium-containing hydroxy apatite, Bisphenol A diglycidylether dimethacrylate resin, and a polymerization accelerator which when mixed together with the first paste component creates a bioactive bone cement.
    Type: Grant
    Filed: November 9, 2000
    Date of Patent: July 15, 2003
    Assignee: Prosperous Kingdom Limited
    Inventors: Yiwen Li, Weijia William Lu, Man Chee Kenneth Cheung, Dip Kei Keith Luk, Chi Yan John Leong
  • Patent number: 6100043
    Abstract: Cloning systems useful for the isolation of recombinant nucleic acid are disclosed in which the recombination of cloning-system nucleic acid and foreign nucleic acid is linked to the expression of a moiety on the surface of a host organism, the moiety being a first member of a binding pair. When recombination occurs between the nucleic acid and the foreign nucleic acid, the moiety is expressed on the surface of the host organism. The isolation of recombinant nucleic acid is then performed by attaching a second member of the binding pair to a solid support and contacting the host organism with the support. When the first member of the binding pair is expressed on the surface of the host organism, the host organism binds to the second member of the binding pair attached to the solid support, thereby selectively isolating those organisms.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: August 8, 2000
    Assignee: The Perkin-Elmer Corporation
    Inventors: John A. Bridgham, John Brandis, John Leong, Paul D. Hoeprich, Jr., Charles L. Sloan, Roger A. O'Neill
  • Patent number: 6090562
    Abstract: Cloning systems useful for the isolation of recombinant nucleic acid are disclosed in which the recombination of cloning-system nucleic acid and foreign nucleic acid is linked to the expression of a moiety on the surface of a host organism, the moiety being a first member of a binding pair. When recombination occurs between the nucleic acid and the foreign nucleic acid, the moiety is expressed on the surface of the host organism. The isolation of recombinant nucleic acid is then performed by attaching a second member of the binding pair to a solid support and contacting the host organism with the support. When the first member of the binding pair is expressed on the surface of the host organism, the host organism binds to the second member of the binding pair attached to the solid support, thereby selectively isolating those organisms.
    Type: Grant
    Filed: February 2, 1999
    Date of Patent: July 18, 2000
    Assignee: The Perkin-Elmer Corporation
    Inventors: John A. Bridgham, John Brandis, John Leong, Paul D. Hoeprich, Jr., Charles L. Sloan, Roger A. O'Neill
  • Patent number: 5843656
    Abstract: Cloning systems useful for the isolation of recombinant nucleic acid are disclosed in which the recombination of cloning-system nucleic acid and foreign nucleic acid is linked to the expression of a moiety on the surface of a host organism, the moiety being a first member of a binding pair. When recombination occurs between the nucleic acid and the foreign nucleic acid, the moiety is expressed on the surface of the host organism. The isolation of recombinant nucleic acid is then performed by attaching a second member of the binding pair to a solid support and contacting the host organism with the support. When the first member of the binding pair is expressed on the surface of the host organism, the host organism binds to the second member of the binding pair attached to the solid support, thereby selectively isolating those organisms.
    Type: Grant
    Filed: August 7, 1995
    Date of Patent: December 1, 1998
    Assignee: The Perkin-Elmer Corporation
    Inventors: John A. Bridgham, John Brandis, John Leong, Paul D. Hoeprich, Jr.
  • Patent number: 5750346
    Abstract: Cloning systems useful for the isolation of recombinant nucleic acid are disclosed in which the recombination of cloning-system nucleic acid and foreign nucleic acid is linked to the expression of a moiety on the surface of a host organism, the moiety being a first member of a binding pair. When recombination occurs between the nucleic acid and the foreign nucleic acid, the moiety is expressed on the surface of the host organism. The isolation of recombinant nucleic acid is then performed by attaching a second member of the binding pair to a solid support and contacting the host organism with the support. When the first member of the binding pair is expressed on the surface of the host organism, the host organism binds to the second member of the binding pair attached to the solid support, thereby selectively isolating those organisms. Other aspects of the invention include devices for the isolation of individual cells that differentially express binding moieties on their surface.
    Type: Grant
    Filed: August 7, 1996
    Date of Patent: May 12, 1998
    Assignee: The Perkin-Elmer Corporation
    Inventors: John A. Bridgham, John Brandis, John Leong, Paul D. Hoeprich, Jr., Charles L. Sloan, Roger A. O'Neill, Charles Andre
  • Patent number: D478576
    Type: Grant
    Filed: December 17, 2001
    Date of Patent: August 19, 2003
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: John Leong