Patents by Inventor Tony J. Lee
Tony J. Lee 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).
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Patent number: 11949222Abstract: Disclosed herein is a system for time aligning electric power system measurements at an intelligent electronic device (IED) using samples and sample time offset from merging units. The merging units do not require access to a common time signal. The IED does not require storage of a communication latency with the merging units. The sample time offset corresponds to a latency between obtaining the sample and receipt of the sample at the IED. The IED aligns samples from various merging units using sample time offset values communicated from the merging units to the IED. The IED performs monitoring and protection functions using the time aligned samples.Type: GrantFiled: November 30, 2021Date of Patent: April 2, 2024Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Lisa Gayle Nelms, Tony J. Lee, Bryon S. Bridges, Derek Lautenschlager, Guillermo Ramirez Conejo, Stephanie L. McDaid, Nishchal Sharma, Bharat Nalla, Vinodev E. Rajasekaran
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Patent number: 11932633Abstract: The present invention relates to compounds that inhibit KRas G12C. In particular, the present invention relates to compounds that irreversibly inhibit the activity of KRas G12C, pharmaceutical compositions comprising the compounds and methods of use therefor.Type: GrantFiled: May 6, 2019Date of Patent: March 19, 2024Assignees: Mirati Therapeutics, Inc., Array Biopharma Inc.Inventors: Matthew Arnold Marx, Matthew Randolph Lee, James F. Blake, Mark Joseph Chicarelli, Jay Bradford Fell, John P. Fischer, Erik James Hicken, Pavel Savechenkov, Tony Tang, Guy P. A. Vigers, Henry J. Zecca
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Publication number: 20220239089Abstract: Disclosed herein is a system for time aligning electric power system measurements at an intelligent electronic device (IED) using samples and sample time offset from merging units. The merging units do not require access to a common time signal. The IED does not require storage of a communication latency with the merging units. The sample time offset corresponds to a latency between obtaining the sample and receipt of the sample at the IED. The IED aligns samples from various merging units using sample time offset values communicated from the merging units to the IED. The IED performs monitoring and protection functions using the time aligned samples.Type: ApplicationFiled: November 30, 2021Publication date: July 28, 2022Applicant: Schweitzer Engineering Laboratories, Inc.Inventors: Lisa Gayle Nelms, Tony J. Lee, Bryon S. Bridges, Derek Lautenschlager, Guillermo Ramirez Conejo, Stephanie L. McDaid, Nishchal Sharma, Bharat Nalla, Vinodev E. Rajasekaran
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Patent number: 11320475Abstract: A testing apparatus for imposing a traveling wave signal on an electric system signal for testing a fault detector is disclosed herein. The fault detector may be configured to simulate a fault at a particular location by controlling the timing of the traveling wave signal. The testing apparatus may be configured to impose multiple traveling wave signals to test the accuracy of the fault location determined by the fault detector. The testing apparatus may be configured to determine the calculation accuracy of the fault detector. The testing apparatus may impose a traveling wave signal on a signal simulating an electrical signal on an electric power delivery system. The testing apparatus may be used to test capabilities of a fault detector of detecting a fault using traveling waves or incremental quantities.Type: GrantFiled: February 17, 2020Date of Patent: May 3, 2022Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: David E. Whitehead, Tony J. Lee, Zachary King Sheffield, Tracey G. Windley
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Publication number: 20220131366Abstract: Primary protection relays and an integrator disclosed for providing primary protection and secondary applications for an electric power delivery system. The primary protection relays obtain signals from, and provide primary protection operations for the power system, and may operate independently from the integrator. An integrator receives signals and status communications from the primary protection relays to perform secondary applications for the electric power delivery system. The secondary applications may include backup protection, system protection, interconnected protection, and automation functions.Type: ApplicationFiled: January 6, 2022Publication date: April 28, 2022Applicant: Schweitzer Engineering Laboratories, Inc.Inventors: Edmund O. Schweitzer, III, David E. Whitehead, Tony J. Lee, Krishnanjan Gubba Ravikumar
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Patent number: 11258249Abstract: Primary protection relays and an integrator disclosed for providing primary protection and secondary applications for an electric power delivery system. The primary protection relays obtain signals from, and provide primary protection operations for the power system, and may operate independently from the integrator. An integrator receives signals and status communications from the primary protection relays to perform secondary applications for the electric power delivery system. The secondary applications may include backup protection, system protection, interconnected protection, and automation functions.Type: GrantFiled: September 28, 2020Date of Patent: February 22, 2022Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Edmund O. Schweitzer, III, David E. Whitehead, Tony J. Lee, Krishnanjan Gubba Ravikumar
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Patent number: 11204377Abstract: Disclosed herein are systems and methods for estimating a period and frequency of a waveform. In one embodiment a system may comprise an input configured to receive a signal comprising a representation of the waveform. A period determination subsystem may calculate an estimated period of the signal based on a period determination function. An estimated period adjustment subsystem may determine an adjustment to the estimated period based on a result of the period determination function. A quality indicator subsystem configured to evaluate a measurement quality indictor function based on the estimated period, and to selectively update the period of the waveform based on the measurement quality indicator. A control action subsystem configured to implement a control action based on the period of the waveform.Type: GrantFiled: August 28, 2018Date of Patent: December 21, 2021Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Bogdan Z. Kasztenny, Tony J. Lee
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Patent number: 11125821Abstract: Systems and methods for testing a protection relay, such as a primary bus protection relay, may include a testing device for providing current signals imitating current on both sides of a bus to the primary bus protection relay. The signals may be provided using signals corresponding with a signal format from merging units or other monitoring devices. The testing device may be configured to receive communications from the primary bus protection relay for evaluation of the operation of the primary bus protection relay.Type: GrantFiled: March 31, 2020Date of Patent: September 21, 2021Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Edmund O. Schweitzer, III, David E. Whitehead, Tony J. Lee, David J. Casebolt, Krishnanjan Gubba Ravikumar, David Schmidt, Austin Edward Wade
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Patent number: 11114892Abstract: Systems and methods including improving availability of protection of an electric power delivery system even upon unavailability of power system signals. Such protection relays may provide protection using signals from the power system and provide the signals to an integrator or another device. Upon unavailability of power system signals to a protection relay, the integrator sends substitute power system signals may be provided to the protection relay. The protection relay may continue to provide protection using the substitute power system signals.Type: GrantFiled: September 28, 2020Date of Patent: September 7, 2021Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Edmund O. Schweitzer, III, Daqing Hou, David E. Whitehead, Tony J. Lee, Krishnanjan Gubba Ravikumar
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Patent number: 11112466Abstract: The present disclosure pertains to devices, systems, and methods for monitoring an electric power system. In one embodiment, a system may detect a failure in an electric power system. The system may include a communication interface to receive a first indication related to a condition in the electric power system, and a second indication related to the condition. The system may also include a test subsystem to compare the first indication to the second indication and to determine a discrepancy between the first indication and the second indication. A diagnostic subsystem may identify the failure based on the discrepancy between the first indication and the second indication. An alert subsystem may generate an alert based on the failure.Type: GrantFiled: February 20, 2020Date of Patent: September 7, 2021Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Edmund O. Schweitzer, III, Tony J. Lee, David E. Whitehead, David J. Casebolt, Krishnanjan Gubba Ravikumar, Austin Edward Wade, Lisa Gayle Nelms
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Patent number: 11115311Abstract: The present disclosure relates to systems and methods for creating a data tunnel to communicate test data in a test configuration in an electric power system. In one embodiment, a remote unit may include a monitored equipment interface to receive information representative of a condition in the electric power system from a test set and a first test data port to communicate test data through the data tunnel in the test configuration. The remote unit may use a first communication subsystem to generate and transmit a stream of data packets comprising information from the monitored equipment interface and information from the first test data port to be routed through the data tunnel. A protection system may receive the stream of data packets from the first communication subsystem and separate information from the monitored equipment interface and information from the test data routed through the data tunnel.Type: GrantFiled: May 18, 2020Date of Patent: September 7, 2021Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Edmund O. Schweitzer, III, David E. Whitehead, Tony J. Lee, Lisa Gayle Nelms, Austin Edward Wade, Krishnanjan Gubba Ravikumar
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Patent number: 11108737Abstract: Systems and methods may maintain protection of electric power delivery systems in the event of an attack on protection and/or control features of the power system. Primary protective functions may be physically isolated from other functions in primary protection relays. Integrators may facilitate non-primary protection functions and disconnect all communication with primary protection relays in the event of an attack. Primary protection relays maintain protection functions even during the attack or unavailability of the integrators.Type: GrantFiled: March 27, 2020Date of Patent: August 31, 2021Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Edmund O. Schweitzer, III, Krishnanjan Gubba Ravikumar, Austin Edward Wade, Tony J. Lee, David J. Casebolt, David E. Whitehead
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Publication number: 20210109156Abstract: Systems and methods for testing a protection relay, such as a primary bus protection relay, may include a testing device for providing current signals imitating current on both sides of a bus to the primary bus protection relay. The signals may be provided using signals corresponding with a signal format from merging units or other monitoring devices. The testing device may be configured to receive communications from the primary bus protection relay for evaluation of the operation of the primary bus protection relay.Type: ApplicationFiled: March 31, 2020Publication date: April 15, 2021Applicant: Schweitzer Engineering Laboratories, Inc.Inventors: Edmund O. Schweitzer, III, David E. Whitehead, Tony J. Lee, David J. Casebolt, Krishnanjan Gubba Ravikumar, David Schmidt, Austin Edward Wade
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Publication number: 20210109164Abstract: The present disclosure pertains to devices, systems, and methods for monitoring an electric power system. In one embodiment, a system may detect a failure in an electric power system. The system may include a communication interface to receive a first indication related to a condition in the electric power system, and a second indication related to the condition. The system may also include a test subsystem to compare the first indication to the second indication and to determine a discrepancy between the first indication and the second indication. A diagnostic subsystem may identify the failure based on the discrepancy between the first indication and the second indication. An alert subsystem may generate an alert based on the failure.Type: ApplicationFiled: February 20, 2020Publication date: April 15, 2021Applicant: Schweitzer Engineering Laboratories, Inc.Inventors: Edmund O. Schweitzer, III, Tony J. Lee, David E. Whitehead, David J. Casebolt, Krishnanjan Gubba Ravikumar, Austin Edward Wade, Lisa Gayle Nelms
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Publication number: 20210111586Abstract: Systems and methods including improving availability of protection of an electric power delivery system even upon unavailability of power system signals. Such protection relays may provide protection using signals from the power system and provide the signals to an integrator or another device. Upon unavailability of power system signals to a protection relay, the integrator sends substitute power system signals may be provided to the protection relay. The protection relay may continue to provide protection using the substitute power system signals.Type: ApplicationFiled: September 28, 2020Publication date: April 15, 2021Applicant: Schweitzer Engineering Laboratories, Inc.Inventors: Edmund O. Schweitzer, III, Daqing Hou, David E. Whitehead, Tony J. Lee, Krishnanjan Gubba Ravikumar
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Publication number: 20210111555Abstract: Primary protection relays and an integrator disclosed for providing primary protection and secondary applications for an electric power delivery system. The primary protection relays obtain signals from, and provide primary protection operations for the power system, and may operate independently from the integrator. An integrator receives signals and status communications from the primary protection relays to perform secondary applications for the electric power delivery system. The secondary applications may include backup protection, system protection, interconnected protection, and automation functions.Type: ApplicationFiled: September 28, 2020Publication date: April 15, 2021Applicant: Schweitzer Engineering Laboratories, Inc.Inventors: Edmund O. Schweitzer, III, David E. Whitehead, Tony J. Lee, Krishnanjan Gubba Ravikumar
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Patent number: 10951057Abstract: Disclosed herein are systems for maintaining protection of electric power delivery systems in the event of a control power failure or other anomaly. A reliable power module conditions electric power from multiple independent sources and provides electrical operational power to electric power delivery system protective loads. The reliable power module includes a power storage device for providing operational power even upon loss of all control power sources. The power storage may be sufficient to ride through expected losses such as a time to start up backup generation. The power storage may be sufficient to power a trip coil. Thus, electric power system protection is maintained even upon loss of control power.Type: GrantFiled: February 20, 2020Date of Patent: March 16, 2021Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Edmund O. Schweitzer, III, David E. Whitehead, Tony J. Lee, David J. Casebolt, Krishnanjan Gubba Ravikumar, Austin Edward Wade, Bruce A. Hall, Kelsey M. Loughlin, Sean D. Robertson
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Patent number: 10896658Abstract: The present disclosure pertains to systems and methods for generating a virtual display using a unidirectional communication channel. In one embodiment, a system may comprise a transmitting device including a processing subsystem to generate a representation of an encoded signal comprising information to be displayed on a virtual display. A virtual display transmission subsystem may transmit the encoded signal. A receiving device may comprise a virtual display reception subsystem to receive the encoded signal. A processing subsystem may extract the information to be displayed on the virtual display from the encoded signal and generate a representation of the virtual display. A virtual display subsystem may display the representation of the virtual display. The virtual display transmission subsystem and the virtual display reception subsystem may create a unidirectional communication channel from the transmitting device to the receiving device.Type: GrantFiled: April 2, 2020Date of Patent: January 19, 2021Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Edmund O. Schweitzer, III, Tony J. Lee, Krishnanjan Gubba Ravikumar, Lisa Gayle Nelms
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Publication number: 20210014196Abstract: Systems and methods may maintain protection of electric power delivery systems in the event of an attack on protection and/or control features of the power system. Primary protective functions may be physically isolated from other functions in primary protection relays. Integrators may facilitate non-primary protection functions and disconnect all communication with primary protection relays in the event of an attack. Primary protection relays maintain protection functions even during the attack or unavailability of the integrators.Type: ApplicationFiled: March 27, 2020Publication date: January 14, 2021Applicant: Schweitzer Engineering Laboratories, Inc.Inventors: Edmund O. Schweitzer, III, Krishnanjan Gubba Ravikumar, Austin Edward Wade, Tony J. Lee, David J. Casebolt, David E. Whitehead
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Publication number: 20200182956Abstract: A testing apparatus for imposing a traveling wave signal on an electric system signal for testing a fault detector is disclosed herein. The fault detector may be configured to simulate a fault at a particular location by controlling the timing of the traveling wave signal. The testing apparatus may be configured to impose multiple traveling wave signals to test the accuracy of the fault location determined by the fault detector. The testing apparatus may be configured to determine the calculation accuracy of the fault detector. The testing apparatus may impose a traveling wave signal on a signal simulating an electrical signal on an electric power delivery system. The testing apparatus may be used to test capabilities of a fault detector of detecting a fault using traveling waves or incremental quantities.Type: ApplicationFiled: February 17, 2020Publication date: June 11, 2020Applicant: Schweitzer Engineering Laboratories, Inc.Inventors: David E. Whitehead, Tony J. Lee, Zachary King Sheffield, Tracey G. Windley