Patents by Inventor Qinchen Gu

Qinchen Gu 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).

  • System for detecting malicious programmable logic controller code
    Patent number: 12111924
    Abstract: A system (100) and method for detecting a malicious programmable logic controller (PLC) code segment (110) in a PLC program corresponding to a specific type of PLC includes a binary parser (112) that parses the code segment (110) into a plurality of functional elements. A variable and function block mapper (114) maps the functional elements into a high-level data structure. A fuzzer (116) generates a behavioral model of the high-level data structure into an automaton (118). A classifier (120) predicts to which processes the automaton (118) corresponds. A detector (122) detects unsafe states in the automaton (118) and that generates an indication of a detected unsafe state.
    Type: Grant
    Filed: January 16, 2021
    Date of Patent: October 8, 2024
    Assignee: Georgia Tech Research Corporation
    Inventors: Qinchen Gu, Abdul Raheem Beyah
  • System for detecting malicious programmable logic controller code
    Publication number: 20230050691
    Abstract: A system (100) and method for detecting a malicious programmable logic controller (PLC) code segment (110) in a PLC program corresponding to a specific type of PLC includes a binary parser (112) that parses the code segment (110) into a plurality of functional elements. A variable and function block mapper (114) maps the functional elements into a high-level data structure. A fuzzer (116) generates a behavioral model of the high-level data structure into an automaton (118). A classifier (120) predicts to which processes the automaton (118) corresponds. A detector (122) detects unsafe states in the automaton (118) and that generates an indication of a detected unsafe state.
    Type: Application
    Filed: January 16, 2021
    Publication date: February 16, 2023
    Inventors: Qinchen Gu, Abdul Raheem Beyah