Patents by Inventor Justin Varkey John

Justin Varkey John 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: 11916940
    Abstract: According to some embodiments, a system, method, and non-transitory computer readable medium are provided comprising a plurality of real-time monitoring nodes to receive streams of monitoring node signal values over time that represent a current operation of the cyber physical system; and a threat detection computer platform, coupled to the plurality of real-time monitoring nodes, to: receive the monitoring node signal values; compute an anomaly score; compare the anomaly score with an adaptive threshold; and detect that one of a particular monitoring node and a system is outside a decision boundary based on the comparison, and classify that particular monitoring node or system as anomalous. Numerous other aspects are provided.
    Type: Grant
    Filed: April 12, 2021
    Date of Patent: February 27, 2024
    Assignee: GE Infrastructure Technology LLC
    Inventors: Masoud Abbaszadeh, Matthew Christian Nielsen, Weizhong Yan, Justin Varkey John
  • Patent number: 11487598
    Abstract: An industrial asset may have a plurality of monitoring nodes, each monitoring node generating a series of monitoring node values over time representing current operation of the industrial asset. An abnormality detection computer may determine that an abnormal monitoring node is currently being attacked or experiencing a fault. An autonomous, resilient estimator may continuously execute an adaptive learning process to create or update virtual sensor models for that monitoring node. Responsive to an indication that a monitoring node is currently being attacked or experiencing a fault, a level of neutralization may be automatically determined. The autonomous, resilient estimator may then be dynamically reconfigured to estimate a series of virtual node values based on information from normal monitoring nodes, appropriate virtual sensor models, and the determined level of neutralization.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: November 1, 2022
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Masoud Abbaszadeh, Mustafa Tekin Dokucu, Justin Varkey John
  • Publication number: 20220327204
    Abstract: According to some embodiments, a system, method and non-transitory computer readable medium are provided comprising a plurality of real-time monitoring nodes to receive streams of monitoring node signal values over time that represent a current operation of the cyber physical system; a local status determination module comprising an ensemble of local agents, the module adapted to determine an anomaly status for one or more nodes; a global status determination module comprising an ensemble of global agents, the module adapted to determine an anomaly status for the cyber physical system; a threat detection computer platform comprising a memory and a computer processor, the threat detection computer platform coupled to the plurality of real-time monitoring nodes and adapted to: receive the monitoring node signal values, generate feature vectors from the received monitoring node signal values; compare via the local status determination module the feature vectors with at least one decision boundary associated with
    Type: Application
    Filed: April 12, 2021
    Publication date: October 13, 2022
    Inventors: Masoud ABBASZADEH, Weizhong YAN, Justin Varkey JOHN, Matthew Christian NIELSEN
  • Publication number: 20220329613
    Abstract: According to some embodiments, a system, method, and non-transitory computer readable medium are provided comprising a plurality of real-time monitoring nodes to receive streams of monitoring node signal values over time that represent a current operation of the cyber physical system; and a threat detection computer platform, coupled to the plurality of real-time monitoring nodes, to: receive the monitoring node signal values; compute an anomaly score; compare the anomaly score with an adaptive threshold; and detect that one of a particular monitoring node and a system is outside a decision boundary based on the comparison, and classify that particular monitoring node or system as anomalous. Numerous other aspects are provided.
    Type: Application
    Filed: April 12, 2021
    Publication date: October 13, 2022
    Inventors: Masoud ABBASZADEH, Matthew Christian NIELSEN, Weizhong YAN, Justin Varkey JOHN
  • Patent number: 11411983
    Abstract: An industrial asset may have monitoring nodes that generate current monitoring node values. An abnormality detection computer may determine that an abnormal monitoring node is currently being attacked or experiencing fault. A dynamic, resilient estimator constructs, using normal monitoring node values, a latent feature space (of lower dimensionality as compared to a temporal space) associated with latent features. The system also constructs, using normal monitoring node values, functions to project values into the latent feature space. Responsive to an indication that a node is currently being attacked or experiencing fault, the system may compute optimal values of the latent features to minimize a reconstruction error of the nodes not currently being attacked or experiencing a fault. The optimal values may then be projected back into the temporal space to provide estimated values and the current monitoring node values from the abnormal monitoring node are replaced with the estimated values.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: August 9, 2022
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Mustafa Tekin Dokucu, Subhrajit Roychowdhury, Olugbenga Anubi, Masoud Abbaszadeh, Justin Varkey John
  • Patent number: 11343266
    Abstract: Methods and systems for self-certifying secure operation of a cyber-physical system having a plurality of monitoring nodes. In an embodiment, an artificial intelligence (AI) watchdog computer platform obtains, using the output of a local features extraction process of time series data of a plurality of monitoring nodes of a cyber-physical system and a global features extraction process, global features extraction data. The AI watchdog computer platform then obtains reduced dimensional data, generates an updated decision boundary, compares the updated decision boundary to a certification manifold, determines based on the comparison that the updated decision boundary is certified, and determines, based on an anomaly detection process, whether the cyber-physical system is behaving normally or abnormally.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: May 24, 2022
    Assignee: General Electric Company
    Inventors: Masoud Abbaszadeh, Hema K. Achanta, Mustafa Tekin Dokucu, Matthew Nielsen, Justin Varkey John
  • Patent number: 11005873
    Abstract: According to some embodiments, streams of monitoring node signal values may be received over time that represent a current operation of an industrial asset control system. A current operating mode of the industrial asset control system may be received and used to determine a current operating mode group from a set of potential operating mode groups. For each stream of monitoring node signal values, a current monitoring node feature vector may be determined. Based on the current operating mode group, an appropriate decision boundary may be selected for each monitoring node, the appropriate decision boundary separating a normal state from an abnormal state for that monitoring node in the current operating mode. Each generated current monitoring node feature vector may be compared with the selected corresponding appropriate decision boundary, and a threat alert signal may be automatically transmitted based on results of said comparisons.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: May 11, 2021
    Assignee: General Electric Company
    Inventors: Daniel Francis Holzhauer, Cody Joe Bushey, Lalit Keshav Mestha, Masoud Abbaszadeh, Justin Varkey John
  • Patent number: 11005870
    Abstract: Systems and methods may be associated with a cyber-physical system, and a blueprint repository data store may contain electronic files that represent behavior-based asset monitoring parameters for different cyber-physical system asset types. A behavior-based asset monitoring creation computer platform may receive an indication of an asset type of the cyber-physical system. The behavior-based asset monitoring creation computer platform may then search the blueprint repository data store and retrieve an electronic file representing behavior-based asset monitoring parameters for the asset type of the cyber-physical system to be monitored. The behavior-based asset monitoring creation computer platform may also receive, from the remote operator device, adjustments to the retrieved behavior-based asset monitoring parameters and automatically configure, based on the adjusted behavior-based asset monitoring parameters, at least a portion of settings for an abnormal detection model.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: May 11, 2021
    Assignee: General Electric Company
    Inventors: Weizhong Yan, Masoud Abbaszadeh, Matthew Nielsen, Justin Varkey John
  • Patent number: 11005863
    Abstract: In some embodiments, a plurality of real-time monitoring node signal inputs receive streams of monitoring node signal values over time that represent a current operation of the industrial asset control system. A threat detection computer platform, coupled to the plurality of real-time monitoring node signal inputs, may receive the streams of monitoring node signal values and, for each stream of monitoring node signal values, generate a current monitoring node feature vector. The threat detection computer platform may then compare each generated current monitoring node feature vector with a corresponding decision boundary for that monitoring node, the decision boundary separating a normal state from an abnormal state for that monitoring node, and localize an origin of a threat to a particular monitoring node. The threat detection computer platform may then automatically transmit a threat alert signal based on results of said comparisons along with an indication of the particular monitoring node.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: May 11, 2021
    Assignee: General Electric Company
    Inventors: Cody Joe Bushey, Lalit Keshav Mestha, Daniel Francis Holzhauer, Justin Varkey John
  • Publication number: 20210120031
    Abstract: An industrial asset may have monitoring nodes that generate current monitoring node values. An abnormality detection computer may determine that an abnormal monitoring node is currently being attacked or experiencing fault. A dynamic, resilient estimator constructs, using normal monitoring node values, a latent feature space (of lower dimensionality as compared to a temporal space) associated with latent features. The system also constructs, using normal monitoring node values, functions to project values into the latent feature space. Responsive to an indication that a node is currently being attacked or experiencing fault, the system may compute optimal values of the latent features to minimize a reconstruction error of the nodes not currently being attacked or experiencing a fault. The optimal values may then be projected back into the temporal space to provide estimated values and the current monitoring node values from the abnormal monitoring node are replaced with the estimated values.
    Type: Application
    Filed: October 16, 2019
    Publication date: April 22, 2021
    Inventors: Mustafa Tekin Dokucu, Subhrajit Roychowdhury, Olugbenga Anubi, Masoud Abbaszadeh, Justin Varkey John
  • Publication number: 20210081270
    Abstract: An industrial asset may have a plurality of monitoring nodes, each monitoring node generating a series of monitoring node values over time representing current operation of the industrial asset. An abnormality detection computer may determine that an abnormal monitoring node is currently being attacked or experiencing a fault. An autonomous, resilient estimator may continuously execute an adaptive learning process to create or update virtual sensor models for that monitoring node. Responsive to an indication that a monitoring node is currently being attacked or experiencing a fault, a level of neutralization may be automatically determined. The autonomous, resilient estimator may then be dynamically reconfigured to estimate a series of virtual node values based on information from normal monitoring nodes, appropriate virtual sensor models, and the determined level of neutralization.
    Type: Application
    Filed: September 18, 2019
    Publication date: March 18, 2021
    Inventors: Masoud ABBASZADEH, Mustafa Tekin DOKUCU, Justin Varkey JOHN
  • Publication number: 20210084056
    Abstract: An industrial asset may have a plurality of monitoring nodes, each monitoring node generating a series of monitoring node values over time representing current operation of the industrial asset. An abnormality detection computer may determine that an abnormal monitoring node is currently being attacked or experiencing a fault. Responsive to an indication that a monitoring node is currently being attacked or experiencing a fault, the system may automatically replace monitoring node values from the at least one abnormal monitoring node currently being attacked or experiencing a fault with virtual node values. The system may also determine when the abnormal monitoring node or nodes will switch from the virtual node values back to monitoring node values.
    Type: Application
    Filed: September 18, 2019
    Publication date: March 18, 2021
    Inventors: Masoud ABBASZADEH, Mustafa Tekin DOKUCU, Justin Varkey JOHN
  • Patent number: 10931687
    Abstract: In some embodiments, an Unmanned Aerial Vehicle (“UAV”) system may be associated with a plurality of monitoring nodes, each monitoring node generating a series of monitoring node values over time that represent operation of the UAV system. An attack detection computer platform may receive the series of current monitoring node values and generate a set of current feature vectors. The attack detection computer platform may access an attack detection model having at least one decision boundary (e.g., created using a set of normal feature vectors a set of attacked feature vectors). The attack detection model may then be executed and the platform may transmit an attack alert signal based on the set of current feature vectors and the at least one decision boundary. According to some embodiments, attack localization and/or neutralization functions may also be provided.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: February 23, 2021
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Lalit Keshav Mestha, Olugbenga Anubi, Justin Varkey John
  • Publication number: 20200389478
    Abstract: Methods and systems for self-certifying secure operation of a cyber-physical system having a plurality of monitoring nodes. In an embodiment, an artificial intelligence (AI) watchdog computer platform obtains, using the output of a local features extraction process of time series data of a plurality of monitoring nodes of a cyber-physical system and a global features extraction process, global features extraction data. The AI watchdog computer platform then obtains reduced dimensional data, generates an updated decision boundary, compares the updated decision boundary to a certification manifold, determines based on the comparison that the updated decision boundary is certified, and determines, based on an anomaly detection process, whether the cyber-physical system is behaving normally or abnormally.
    Type: Application
    Filed: June 10, 2019
    Publication date: December 10, 2020
    Inventors: Masoud ABBASZADEH, Hema K. ACHANTA, Mustafa Tekin DOKUCU, Matthew NIELSEN, Justin Varkey JOHN
  • Patent number: 10826922
    Abstract: In some embodiments, an industrial asset may be associated with a plurality of monitoring nodes, each monitoring node generating a series of monitoring node values over time that represent operation of the industrial asset. A threat detection computer may determine that an attacked monitoring node is currently being attacked. Responsive to this determination, a virtual sensor coupled to the plurality of monitoring nodes may estimate a series of virtual node values for the attacked monitoring node(s) based on information received from monitoring nodes that are not currently being attacked. The virtual sensor may then replace the series of monitoring node values from the attacked monitoring node(s) with the virtual node values. Note that in some embodiments, virtual node values may be estimated for a particular node even before it is determined that the node is currently being attacked.
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: November 3, 2020
    Assignee: General Electric Company
    Inventors: Lalit Keshav Mestha, Hema Kumari Achanta, Justin Varkey John, Cody Joe Bushey
  • Publication number: 20200169574
    Abstract: Systems and methods may be associated with a cyber-physical system, and a blueprint repository data store may contain electronic files that represent behavior-based asset monitoring parameters for different cyber-physical system asset types. A behavior-based asset monitoring creation computer platform may receive an indication of an asset type of the cyber-physical system. The behavior-based asset monitoring creation computer platform may then search the blueprint repository data store and retrieve an electronic file representing behavior-based asset monitoring parameters for the asset type of the cyber-physical system to be monitored. The behavior-based asset monitoring creation computer platform may also receive, from the remote operator device, adjustments to the retrieved behavior-based asset monitoring parameters and automatically configure, based on the adjusted behavior-based asset monitoring parameters, at least a portion of settings for an abnormal detection model.
    Type: Application
    Filed: November 27, 2018
    Publication date: May 28, 2020
    Inventors: Weizhong YAN, Masoud ABBASZADEH, Matthew NIELSEN, Justin Varkey JOHN
  • Patent number: 10594712
    Abstract: A threat detection model creation computer receives normal monitoring node values and abnormal monitoring node values. At least some received monitoring node values may be processed with a deep learning model to determine parameters of the deep learning model (e.g., a weight matrix and affine terms). The parameters of the deep learning model and received monitoring node values may then be used to compute feature vectors. The feature vectors may be spatial along a plurality of monitoring nodes. At least one decision boundary for a threat detection model may be automatically calculated based on the computed feature vectors, and the system may output the decision boundary separating a normal state from an abnormal state for that monitoring node. The decision boundary may also be obtained by combining feature vectors from multiple nodes. The decision boundary may then be used to detect normal and abnormal operation of an industrial asset.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: March 17, 2020
    Assignee: General Electric Company
    Inventors: Lalit Keshav Mestha, Justin Varkey John, Weizhong Yan, David Joseph Hartman
  • Publication number: 20200076838
    Abstract: In some embodiments, an industrial asset may be associated with a plurality of monitoring nodes, each monitoring node generating a series of monitoring node values over time that represent operation of the industrial asset. A threat detection computer may determine that an attacked monitoring node is currently being attacked. Responsive to this determination, a virtual sensor coupled to the plurality of monitoring nodes may estimate a series of virtual node values for the attacked monitoring node(s) based on information received from monitoring nodes that are not currently being attacked. The virtual sensor may then replace the series of monitoring node values from the attacked monitoring node(s) with the virtual node values. Note that in some embodiments, virtual node values may be estimated for a particular node even before it is determined that the node is currently being attacked.
    Type: Application
    Filed: November 11, 2019
    Publication date: March 5, 2020
    Inventors: Lalit Keshav MESTHA, Hema Kumari ACHANTA, Justin Varkey JOHN, Cody Joe BUSHEY
  • Patent number: 10505955
    Abstract: In some embodiments, an industrial asset may be associated with a plurality of monitoring nodes, each monitoring node generating a series of monitoring node values over time that represent operation of the industrial asset. A threat detection computer may determine that an attacked monitoring node is currently being attacked. Responsive to this determination, a virtual sensor coupled to the plurality of monitoring nodes may estimate a series of virtual node values for the attacked monitoring node(s) based on information received from monitoring nodes that are not currently being attacked. The virtual sensor may then replace the series of monitoring node values from the attacked monitoring node(s) with the virtual node values. Note that in some embodiments, virtual node values may be estimated for a particular node even before it is determined that the node is currently being attacked.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: December 10, 2019
    Assignee: General Electric Company
    Inventors: Lalit Keshav Mestha, Hema Kumari Achanta, Justin Varkey John, Cody Joe Bushey
  • Patent number: 10476902
    Abstract: A system to protect a fleet of industrial assets may include a communication port to exchange information with a plurality of remote industrial assets. An industrial fleet protection system may receive information from the plurality of remote industrial assets or a cloud-based security platform and calculate, based on information received from multiple industrial assets, a current fleet-wide operation feature vector. The industrial fleet protection system may then compare the current fleet-wide operation feature vector with a fleet-wide decision boundary (e.g., separating normal from abnormal operation of the industrial fleet). The system may then automatically transmit a response (e.g., a cyber-attack threat alert or an adjustment to a decision boundary of an industrial asset) when a result of the comparison indicates abnormal operation of the industrial fleet.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: November 12, 2019
    Assignee: General Electric Company
    Inventors: Daniel Francis Holzhauer, Masoud Abbaszadeh, Lalit Keshav Mestha, Justin Varkey John, Cody Bushy