Monitoring device for a converter of a rail vehicle
US-2025229635-A1 · Jul 17, 2025 · US
responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays
responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02H5/08 |
| Official title | responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays |
| Display label | responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays |
| Total patents | 39 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 4 |
| 2017 | 1 |
| 2018 | 4 |
| 2019 | 5 |
| 2020 | 7 |
| 2021 | 6 |
| 2022 | 5 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electrical battery monitoring device and battery
US-11933852-B2 · Mar 19, 2024 · US
Explosion-proof apparatus
US-11876234-B2 · Jan 16, 2024 · US
Prefabricated transformer station, oil-immersed transformer, and photovoltaic system
US-2023290559-A1 · Sep 14, 2023 · US
Electrical battery monitoring device and battery
US-2022291288-A1 · Sep 15, 2022 · US
Temperature based fluid level estimation in an electrical device
US-11437185-B2 · Sep 6, 2022 · US
Storage unit for electrical energy, method for monitoring a storage unit of this kind and vehicle
US-11424082-B2 · Aug 23, 2022 · US
Electrical battery monitoring device and battery
US-11378627-B2 · Jul 5, 2022 · US
Automatic reclosing device and method for electrical vehicle charging cable control device
US-11230194-B2 · Jan 25, 2022 · US
Explosion-proof apparatus
US-2021265688-A1 · Aug 26, 2021 · US
Overload protection device and method, storage medium, compressor and electric appliance
US-11063420-B2 · Jul 13, 2021 · US
Anomaly diagnosis device and anomaly diagnosis method for oil-hydraulic operating mechanism
US-11038339-B2 · Jun 15, 2021 · US
Device for monitoring a boat drive
US-11001360-B2 · May 11, 2021 · US
Storage unit for electrical energy, method for monitoring a storage unit of this kind and vehicle
US-2021118623-A1 · Apr 22, 2021 · US
Inductive Power Transfer Unit and a Method of Manufacturing an Inductive Power Transfer Unit
US-2021104885-A1 · Apr 8, 2021 · US
Explosion-proof device
US-10840763-B2 · Nov 17, 2020 · US
Anomaly diagnosis device and anomaly diagnosis method for oil-hydraulic operating mechanism
US-2020321771-A1 · Oct 8, 2020 · US
Power electronics installation
US-10787091-B2 · Sep 29, 2020 · US
Self-disconnecting power source apparatus
US-10714927-B2 · Jul 14, 2020 · US
Self-disconnecting power source apparatus
US-10714926-B2 · Jul 14, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02H5/08?
- CPC H02H5/08 is the Cooperative Patent Classification code for “responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays.”
- How many patents are filed under CPC H02H5/08 (responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays)?
- Our database includes 39 publications tagged with this CPC code.
- Is patent activity under CPC H02H5/08 growing?
- Publication counts under this code: 2 in 2024 vs 1 in 2025 (latest complete years).