Three-phase arc quenching device with two pistons
US-12451302-B2 · Oct 21, 2025 · US
the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01H33/88 |
| Official title | the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts |
| Display label | the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts |
| Total patents | 52 |
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 | 10 |
| 2016 | 9 |
| 2017 | 10 |
| 2018 | 8 |
| 2019 | 5 |
| 2020 | 4 |
| 2021 | 3 |
| 2023 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Three-phase arc quenching device with two pistons
US-2023197371-A1 · Jun 22, 2023 · US
Gas circuit breaker
US-11545322-B2 · Jan 3, 2023 · US
Gas circuit breaker
US-2021350990-A1 · Nov 11, 2021 · US
Gas-insulated load break switch and switchgear comprising a gas-insulated load break switch
US-10991528-B2 · Apr 27, 2021 · US
Gas-insulated low- or medium-voltage load break switch
US-10964498-B2 · Mar 30, 2021 · US
Disconnecting device with arc extinguishing
US-10714276-B2 · Jul 14, 2020 · US
Gas-Insulated Load Break Switch And Switchgear Comprising A Gas-Insulated Load Break Switch
US-2020126742-A1 · Apr 23, 2020 · US
Disconnecting Device with Arc Extinguishing
US-2020066465-A1 · Feb 27, 2020 · US
Gas-blast circuit breaker
US-10573475-B2 · Feb 25, 2020 · US
Gas circuit breaker
US-10475607-B2 · Nov 12, 2019 · US
Gas-blast circuit breaker
US-2019295791-A1 · Sep 26, 2019 · US
Gas-insulated low- or medium-voltage load break switch
US-2019115174-A1 · Apr 18, 2019 · US
Circuit breaker containing a gas escape hood with sealable opening
US-10262813-B2 · Apr 16, 2019 · US
Gas circuit breaker
US-2019088430-A1 · Mar 21, 2019 · US
Gas circuit breaker
US-10153109-B2 · Dec 11, 2018 · US
Vacuum circuit interrupter
US-10153111-B2 · Dec 11, 2018 · US
Abrasion resistant material, puffer cylinder, and puffer type gas circuit breaker
US-10128071-B2 · Nov 13, 2018 · US
Circuit breaker containing a gas escape hood with sealable opening
US-2018261406-A1 · Sep 13, 2018 · US
Gas Breaker
US-2018226214-A1 · Aug 9, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01H33/88?
- CPC H01H33/88 is the Cooperative Patent Classification code for “the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts.”
- How many patents are filed under CPC H01H33/88 (the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts)?
- Our database includes 52 publications tagged with this CPC code.
- Is patent activity under CPC H01H33/88 growing?
- Publication counts under this code: 2 in 2023 vs 1 in 2025 (latest complete years).