Ground fault circuit interrupter (gfci) with limit detection and adaptive sample accumulation window
US-2025316975-A1 · Oct 9, 2025 · US
responsive to earthing of the neutral conductor (H02H3/338 takes precedence)
responsive to earthing of the neutral conductor (H02H3/338 takes precedence) · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02H3/331 |
| Official title | {responsive to earthing of the neutral conductor (H02H3/338 takes precedence)} |
| Display label | responsive to earthing of the neutral conductor (H02H3/338 takes precedence) |
| Total patents | 45 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 4 |
| 2019 | 7 |
| 2020 | 6 |
| 2021 | 3 |
| 2022 | 4 |
| 2023 | 4 |
| 2024 | 5 |
| 2025 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Apparatuses and methods for passive fault monitoring of current sensing devices in protective circuit interrupters
US-2025283942-A1 · Sep 11, 2025 · US
Frequency-dependent ground fault circuit interrupter
US-12368294-B2 · Jul 22, 2025 · US
Ground fault circuit interrupter (GFCI) devices, systems, and methods
US-12334722-B2 · Jun 17, 2025 · US
Apparatuses and methods for passive fault monitoring of current sensing devices in protective circuit interrupters
US-12306252-B2 · May 20, 2025 · US
Ground fault circuit interrupter devices and related electrical connectors and electrical appliances
US-2025141206-A1 · May 1, 2025 · US
Ground fault circuit interrupter (GFCI) devices, systems, and methods
US-12266917-B2 · Apr 1, 2025 · US
Apparatuses and methods for passive fault monitoring of current sensing devices in protective circuit interrupters
US-2024272225-A1 · Aug 15, 2024 · US
Ground fault circuit interrupter (gfci) devices, systems, and methods
US-2024222954-A1 · Jul 4, 2024 · US
Ground fault circuit interrupter (gfci) devices, systems, and methods
US-2024222955-A1 · Jul 4, 2024 · US
Apparatuses and methods for passive fault monitoring of current sensing devices in protective circuit interrupters
US-11940498-B2 · Mar 26, 2024 · US
Frequency-dependent ground fault circuit interrupter
US-2024097429-A1 · Mar 21, 2024 · US
Systems and methods of grounded neutral fault detection by single frequency excitation and leakage spectral analysis
US-11855442-B2 · Dec 26, 2023 · US
Apparatuses and methods for passive fault monitoring of current sensing devices in protective circuit interrupters
US-2023349974-A1 · Nov 2, 2023 · US
Apparatuses and methods for passive fault monitoring of current sensing devices in protective circuit interrupters
US-11644507-B2 · May 9, 2023 · US
Systems and methods of grounded neutral fault detection by single frequency excitation and leakage spectral analysis
US-2023090349-A1 · Mar 23, 2023 · US
Monitor device, ground fault protection circuit and techniques
US-11539200-B2 · Dec 27, 2022 · US
Apparatuses and methods for passive fault monitoring of current sensing devices in protective circuit interrupters
US-2022357396-A1 · Nov 10, 2022 · US
Apparatuses and methods for passive fault monitoring of current sensing devices in protective circuit interrupters
US-11408940-B2 · Aug 9, 2022 · US
Smart wiring devices
US-11264791-B2 · Mar 1, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02H3/331?
- CPC H02H3/331 is the Cooperative Patent Classification code for “responsive to earthing of the neutral conductor (H02H3/338 takes precedence).”
- How many patents are filed under CPC H02H3/331 (responsive to earthing of the neutral conductor (H02H3/338 takes precedence))?
- Our database includes 45 publications tagged with this CPC code.
- Is patent activity under CPC H02H3/331 growing?
- Publication counts under this code: 5 in 2024 vs 7 in 2025 (latest complete years).