Distributed main-tie-tie-main transfer control scheme
US-12573839-B2 · Mar 10, 2026 · US
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Hao Kei patents
Hao Kei is listed as an inventor on 42 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Hao Kei |
| Total patents | 42 |
| First publication | Oct 31, 2019 |
| Latest publication | Mar 10, 2026 |
Notable patents
Publications ranked by popularity score, then publication date.
Current transformer polarity verification
US-2025322988-A1 · Oct 16, 2025 · US
Controlling feeder units for self-restoration of power
US-12288983-B2 · Apr 29, 2025 · US
Distributed Main-Tie-Tie-Main Transfer Control Scheme
US-2025112455-A1 · Apr 3, 2025 · US
Protection And Control Scheme For Utility Tie And Industrial Cogeneration System
US-2025112467-A1 · Apr 3, 2025 · US
Controlling Feeder Units For Self-Restoration Of Power
US-2024204517-A1 · Jun 20, 2024 · US
Systems and methods to identify open phases of a capacitor bank
US-11808824-B2 · Nov 7, 2023 · US
Intelligent electronic device control using wirelessly transmitted multi-phase electrical measurements
US-11698398-B2 · Jul 11, 2023 · US
Wireless neutral current sensor (WNCS)
US-11614498-B2 · Mar 28, 2023 · US
Systems and methods for identifying electric power delivery system event locations using machine learning
US-2023024645-A1 · Jan 26, 2023 · US
Recent patents
Latest publications not already listed above.
Automatically determining the size of a capacitor bank using wireless current sensors (WCS)
US-11549996-B1 · Jan 10, 2023 · US
Fault direction calculation during current transformer saturation
US-11474139-B2 · Oct 18, 2022 · US
Systems and methods to identify open phases of a capacitor bank
US-2022299579-A1 · Sep 22, 2022 · US
Determining the size of a capacitor bank
US-11435403-B2 · Sep 6, 2022 · US
Electric power distribution sectionalizing in high-risk areas using wireless fault sensors
US-11431161-B2 · Aug 30, 2022 · US
Predictive maintenance of protective devices using wireless line sensors and systems
US-11372045-B2 · Jun 28, 2022 · US
Frequency estimation and tracking using current
US-2022178976-A1 · Jun 9, 2022 · US
Intelligent electronic device control using wirelessly transmitted multi-phase electrical measurements
US-2022146557-A1 · May 12, 2022 · US
Systems and methods for determining load direction under adverse environmental conditions
US-11313887-B2 · Apr 26, 2022 · US
Intelligent electronic device control using wirelessly transmitted multi-phase electrical measurements
US-11268995-B2 · Mar 8, 2022 · US
Multi-phase sensing and control using a combination of line post sensors and wireless current sensors
US-11209465-B2 · Dec 28, 2021 · US
Fault current calculation during transformer saturation using the waveform unsaturated region
US-11162994-B2 · Nov 2, 2021 · US
Electric power distribution sectionalizing in high-risk areas using wireless fault sensors
US-2021281062-A1 · Sep 9, 2021 · US
Bidirectional capacitor bank control
US-11114858-B2 · Sep 7, 2021 · US
Intelligent electronic device control using wirelessly transmitted electrical measurements
US-11099220-B2 · Aug 24, 2021 · US
Fault current calculation during transformer saturation using the waveform unsaturated region
US-2021231723-A1 · Jul 29, 2021 · US
Predictive maintenance of protective devices using wireless line sensors and systems
US-2021231736-A1 · Jul 29, 2021 · US
Bidirectional capacitor bank control
US-11075519-B2 · Jul 27, 2021 · US
Intelligent electronic device control using wirelessly transmitted electrical measurements
US-2021109135-A1 · Apr 15, 2021 · US
Methods to automatically associate wireless current sensors with voltages of a power system
US-2021109136-A1 · Apr 15, 2021 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Schweitzer Engineering Lab Inc | 36 |
| Google Llc | 6 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| G01R19/2513 | 18 |
| Y02E40/30 | 12 |
| H02J13/12 | 11 |
| G01R15/18 | 11 |
| H02H1/0007 | 10 |