Device for interrupting non-short circuit currents only, in particular disconnector or earthing switch
US-2021327665-A1 · Oct 21, 2021 · US
Selection of fluids for arc-extinguishing
Selection of fluids for arc-extinguishing · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01H33/22 |
| Official title | Selection of fluids for arc-extinguishing |
| Display label | Selection of fluids for arc-extinguishing |
| Total patents | 111 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 14 |
| 2017 | 2 |
| 2018 | 13 |
| 2019 | 10 |
| 2020 | 12 |
| 2021 | 12 |
| 2022 | 13 |
| 2023 | 13 |
| 2024 | 10 |
| 2025 | 7 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Use of 1-chloro-2,3,3,3-tetrafluoropropene for isolating or extinguishing electric arcs
US-11133139-B2 · Sep 28, 2021 · US
Circuit breaker comprising a ceria-based catalyst for CO conversion into CO2
US-11056300-B2 · Jul 6, 2021 · US
Medium-voltage or high-voltage electrical device having low-thickness hybrid insulation
US-11017919-B2 · May 25, 2021 · US
Switching Device
US-2021151269-A1 · May 20, 2021 · US
Gas-insulated load break switch and switchgear comprising a gas-insulated load break switch
US-10991528-B2 · Apr 27, 2021 · US
Use of 1-chloro-2,3,3,3-tetrafluoropropene for isolating or extinguishing electric arcs
US-2020365353-A1 · Nov 19, 2020 · US
Insulating molded body and gas circuit breaker
US-2020357587-A1 · Nov 12, 2020 · US
Liquid arc extinguish chamber for direct current breaking, direct current breaker and method thereof
US-2020343063-A1 · Oct 29, 2020 · US
Insulating medium for an electric energy transmission device
US-2020294742-A1 · Sep 17, 2020 · US
Switching device with dual conductive housing
US-10763062-B2 · Sep 1, 2020 · US
A circuit breaker comprising a ceria-based catalyst for co conversion into co2
US-2020185171-A1 · Jun 11, 2020 · US
A circuit breaker comprising a metal-organic framework material for co adsorption
US-2020179864-A1 · Jun 11, 2020 · US
Device for interrupting non-short circuit currents only, in particular disconnector or earthing switch
US-2020161064-A1 · May 21, 2020 · US
Gas-insulated electrical apparatus filled with a dielectric gas
US-10643764-B2 · May 5, 2020 · US
Gas-Insulated Load Break Switch And Switchgear Comprising A Gas-Insulated Load Break Switch
US-2020126742-A1 · Apr 23, 2020 · US
Apparatus for the generation, transmission, distribution and/or the usage of electrical energy, in particular electrical switching device
US-10566159-B2 · Feb 18, 2020 · US
Device for interrupting non-short circuit currents only, in particular disconnector or earthing switch
US-10553376-B2 · Feb 4, 2020 · US
Water and contamination absorber for C02 insulated electrical apparatus for the generation, transmission, distribution and/or usage of electrical energy
US-10522981-B2 · Dec 31, 2019 · US
Use of hexafluorobutenes for isolating or extinguishing electric arcs
US-10490372-B2 · Nov 26, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01H33/22?
- CPC H01H33/22 is the Cooperative Patent Classification code for “Selection of fluids for arc-extinguishing.”
- How many patents are filed under CPC H01H33/22 (Selection of fluids for arc-extinguishing)?
- Our database includes 111 publications tagged with this CPC code.
- Is patent activity under CPC H01H33/22 growing?
- Publication counts under this code: 10 in 2024 vs 7 in 2025 (latest complete years).