Ground fault circuit interrupter using frequency recognition and measurement
US-11211781-B2 · Dec 28, 2021 · US
responsive to frequency deviations
responsive to frequency deviations · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02H3/46 |
| Official title | responsive to frequency deviations |
| Display label | responsive to frequency deviations |
| Total patents | 105 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 5 |
| 2017 | 5 |
| 2018 | 8 |
| 2019 | 11 |
| 2020 | 12 |
| 2021 | 11 |
| 2022 | 10 |
| 2023 | 16 |
| 2024 | 8 |
| 2025 | 11 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electrical system
US-11204396-B2 · Dec 21, 2021 · US
Electrical system
US-11175349-B2 · Nov 16, 2021 · US
Transformer rectifier unit power quality protection
US-2021288488-A1 · Sep 16, 2021 · US
Detecting electrical arcing in household electrical wiring
US-2021151974-A1 · May 20, 2021 · US
Intelligent power strip with management of bistable relays to reduce current in-rush
US-10998717-B2 · May 4, 2021 · US
Electrical device with power quality event protection and associated method
US-2021119436-A1 · Apr 22, 2021 · US
Compact Modular Electrical Load Management System
US-2021119443-A1 · Apr 22, 2021 · US
Compensation device for compensating for leakage currents
US-2021048484-A1 · Feb 18, 2021 · US
Electrical device with power quality event protection and associated method
US-10910821-B2 · Feb 2, 2021 · US
Irrigation controller having transformer with resettable fuse
US-10886727-B2 · Jan 5, 2021 · US
Electronic device, corresponding apparatus, method and computer program product
US-2020408819-A1 · Dec 31, 2020 · US
Recloser Control Fast Open Circuit Detection
US-2020389048-A1 · Dec 10, 2020 · US
Synchronous power-on/off control method and synchronous power-on/off controller
US-10742041-B2 · Aug 11, 2020 · US
Coordinated frequency load shedding protection method using distributed electrical protection devices
US-10734810-B2 · Aug 4, 2020 · US
Irrigation controller having transformer with resettable fuse
US-2020212667-A1 · Jul 2, 2020 · US
Ground fault circuit interrupter using frequency recognition and measurement
US-2020161849-A1 · May 21, 2020 · US
Power system disturbance detection using power and frequency
US-10644493-B2 · May 5, 2020 · US
Determining the frequency of an alternating signal
US-10613127-B2 · Apr 7, 2020 · US
Intelligent power strip with management of bistable relays to reduce current in-rush
US-2020059088-A1 · Feb 20, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02H3/46?
- CPC H02H3/46 is the Cooperative Patent Classification code for “responsive to frequency deviations.”
- How many patents are filed under CPC H02H3/46 (responsive to frequency deviations)?
- Our database includes 105 publications tagged with this CPC code.
- Is patent activity under CPC H02H3/46 growing?
- Publication counts under this code: 8 in 2024 vs 11 in 2025 (latest complete years).