A circuit breaker
US-2024348041-A1 · Oct 17, 2024 · US
responsive to the appearance of abnormal wave forms, e.g. AC in DC installations
responsive to the appearance of abnormal wave forms, e.g. AC in DC installations · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02H3/50 |
| Official title | responsive to the appearance of abnormal wave forms, e.g. AC in DC installations |
| Display label | responsive to the appearance of abnormal wave forms, e.g. AC in DC installations |
| Total patents | 74 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 3 |
| 2018 | 6 |
| 2019 | 3 |
| 2020 | 15 |
| 2021 | 10 |
| 2022 | 10 |
| 2023 | 9 |
| 2024 | 8 |
| 2025 | 5 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
System for protecting an electrical circuit for an aircraft
US-2024329154-A1 · Oct 3, 2024 · US
Arc detection system, arc detection method, and recording medium
US-2023384398-A1 · Nov 30, 2023 · US
Arc detection system, arc detection method, and recording medium
US-2023341475-A1 · Oct 26, 2023 · US
Arc fault detection through mixed-signal machine learning and neural networks
US-2023307900-A1 · Sep 28, 2023 · US
Transformer rectifier unit power quality protection
US-11710959-B2 · Jul 25, 2023 · US
Single phase input detection and power source protection
US-2023226633-A1 · Jul 20, 2023 · US
Electrical power system with improved functional security
US-11646580-B2 · May 9, 2023 · US
Arc detection device, solar inverter, indoor wiring system, breaker, solar panel, solar panel-attached module, and junction box
US-2023099131-A1 · Mar 30, 2023 · US
Heating device having an AC voltage abnormality detector and image forming apparatus
US-11609520-B2 · Mar 21, 2023 · US
Electrical device with power quality event protection and associated method
US-11552468-B2 · Jan 10, 2023 · US
Single phase input detection and power source protection
US-11498147-B2 · Nov 15, 2022 · US
Transformer rectifier unit power quality protection
US-2022285930-A1 · Sep 8, 2022 · US
Temporary overvoltage and ground fault overvoltage protection based on arrester current measurement and analysis
US-11435409-B2 · Sep 6, 2022 · US
Transmission and distribution system with electric shock protection function and method of operating the same
US-11356012-B2 · Jun 7, 2022 · US
System and method for sensing fault symptom before occurrence of fault utilizing neural network model
US-2022170975-A1 · Jun 2, 2022 · US
Transformer rectifier unit power quality protection
US-11349299-B2 · May 31, 2022 · US
Image forming device
US-11327426-B2 · May 10, 2022 · US
Electrical power system with improved functional security
US-2022131377-A1 · Apr 28, 2022 · US
Location of a ground fault in an IT network
US-11307236-B2 · Apr 19, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02H3/50?
- CPC H02H3/50 is the Cooperative Patent Classification code for “responsive to the appearance of abnormal wave forms, e.g. AC in DC installations.”
- How many patents are filed under CPC H02H3/50 (responsive to the appearance of abnormal wave forms, e.g. AC in DC installations)?
- Our database includes 74 publications tagged with this CPC code.
- Is patent activity under CPC H02H3/50 growing?
- Publication counts under this code: 8 in 2024 vs 5 in 2025 (latest complete years).