Inventor · disambiguated record
Kei Hao
Also filed as: HAO KEI
18 granted patents·5 pending applications·18 citations·filing 2018–2024
88Inventor score
Top patents by PatentIndex Score
23 records- 0194US10637233B2Fault magnitude calculation during current transformer saturationSCHWEITZER ENGINEERING LAB INC·Filed 2018·Granted Apr 28, 2020·9 cites·20 claims
- 0279US11209465B2Multi-phase sensing and control using a combination of line post sensors and wireless current sensorsSCHWEITZER ENGINEERING LAB INC·Filed 2019·Granted Dec 28, 2021·3 cites·18 claims
- 0377US11162994B2Fault current calculation during transformer saturation using the waveform unsaturated regionSCHWEITZER ENGINEERING LAB INC·Filed 2020·Granted Nov 2, 2021·1 cites·20 claims
- 0472US11435403B2Determining the size of a capacitor bankSCHWEITZER ENGINEERING LAB INC·Filed 2019·Granted Sep 6, 2022·1 cites·15 claims
- 0572US11075519B2Bidirectional capacitor bank controlSCHWEITZER ENGINEERING LAB INC·Filed 2019·Granted Jul 27, 2021·1 cites·18 claims
- 0670US10830832B2Event direction in line sensorsSCHWEITZER ENGINEERING LAB INC·Filed 2018·Granted Nov 10, 2020·1 cites·25 claims
- 0768US11114858B2Bidirectional capacitor bank controlSCHWEITZER ENGINEERING LAB INC·Filed 2019·Granted Sep 7, 2021·2 cites·20 claims
- 0865US11698398B2Intelligent electronic device control using wirelessly transmitted multi-phase electrical measurementsSCHWEITZER ENGINEERING LAB INC·Filed 2022·Granted Jul 11, 2023·0 cites·8 claims
- 0961US11549996B1Automatically determining the size of a capacitor bank using wireless current sensors (WCS)SCHWEITZER ENGINEERING LAB INC·Filed 2021·Granted Jan 10, 2023·0 cites·20 claims
- 1061US11372045B2Predictive maintenance of protective devices using wireless line sensors and systemsSCHWEITZER ENGINEERING LAB INC·Filed 2020·Granted Jun 28, 2022·0 cites·18 claims
- 1160US11614498B2Wireless neutral current sensor (WNCS)SCHWEITZER ENGINEERING LAB INC·Filed 2019·Granted Mar 28, 2023·0 cites·17 claims
- 1260US2025322988A1Current transformer polarity verificationGOOGLE LLC·Filed 2024·Application pending·0 cites
- 1359US11268995B2Intelligent electronic device control using wirelessly transmitted multi-phase electrical measurementsSCHWEITZER ENGINEERING LAB INC·Filed 2020·Granted Mar 8, 2022·0 cites·18 claims
- 1456US11808824B2Systems and methods to identify open phases of a capacitor bankSCHWEITZER ENGINEERING LAB INC·Filed 2021·Granted Nov 7, 2023·0 cites·24 claims
- 1556US2025112467A1Protection And Control Scheme For Utility Tie And Industrial Cogeneration SystemGOOGLE LLC·Filed 2024·Application pending·0 cites
- 1653US12288983B2Controlling feeder units for self-restoration of powerGOOGLE LLC·Filed 2022·Granted Apr 29, 2025·0 cites·18 claims
- 1753US11313887B2Systems and methods for determining load direction under adverse environmental conditionsSCHWEITZER ENGINEERING LAB INC·Filed 2019·Granted Apr 26, 2022·0 cites·10 claims
- 1850US11099220B2Intelligent electronic device control using wirelessly transmitted electrical measurementsSCHWEITZER ENGINEERING LAB INC·Filed 2019·Granted Aug 24, 2021·0 cites·24 claims
- 1948US11431161B2Electric power distribution sectionalizing in high-risk areas using wireless fault sensorsSCHWEITZER ENGINEERING LAB INC·Filed 2021·Granted Aug 30, 2022·0 cites·20 claims
- 2046US11474139B2Fault direction calculation during current transformer saturationSCHWEITZER ENGINEERING LAB INC·Filed 2019·Granted Oct 18, 2022·0 cites·13 claims
- 2145US2022178976A1Frequency estimation and tracking using currentSCHWEITZER ENGINEERING LAB INC·Filed 2020·Application pending·0 cites
- 2245US2021109136A1Methods to automatically associate wireless current sensors with voltages of a power systemSCHWEITZER ENGINEERING LAB INC·Filed 2019·Application pending·0 cites
- 2342US2023024645A1Systems and methods for identifying electric power delivery system event locations using machine learningSCHWEITZER ENGINEERING LAB INC·Filed 2021·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →