Patents by Inventor Charlotte W. Chang

Charlotte W. Chang 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).

  • Virtual security appliance
    Patent number: 9104861
    Abstract: Security from malicious attack is provided for a user environment running in a virtualized environment by a virtual security appliance (VSA) running outside of the user environment, but on the same computer system as the user environment. For example, a VSA running in a virtual machine can provide security for a user environment running in a second virtual machine. The separation of the VSA from the user environment enhances the robustness of the VSA against malicious attacks seeking to disable/bypass the protections of the VSA, while avoiding the costs and complexities of a physical security appliance.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: August 11, 2015
    Assignee: Symantec Corporation
    Inventors: Archana S. Rajan, Leo Cohen, Charlotte W. Chang, Christopher Alexander, Gary Sabala, Alfred C. Hartmann, Wei Lin, Brendon Woirhaye
  • Virtual security appliance
    Patent number: 8353031
    Abstract: Security from malicious attack is provided for a user environment running in a virtualized environment by a virtual security appliance (VSA) running outside of the user environment, but on the same computer system as the user environment. For example, a VSA running in a virtual machine can provide security for a user environment running in a second virtual machine. The separation of the VSA from the user environment enhances the robustness of the VSA against malicious attacks seeking to disable/bypass the protections of the VSA, while avoiding the costs and complexities of a physical security appliance.
    Type: Grant
    Filed: May 17, 2007
    Date of Patent: January 8, 2013
    Assignee: Symantec Corporation
    Inventors: Archana S. Rajan, Leo Cohen, Charlotte W. Chang, Christopher Alexander, Gary Sabala, Alfred C. Hartmann, Wei Lin, Brendon Woirhaye