Arc extinguishing system for contactor and contactor
US-2025029799-A1 · Jan 23, 2025 · US
having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber
having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01H33/72 |
| Official title | having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber |
| Display label | having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber |
| Total patents | 43 |
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 | 8 |
| 2016 | 7 |
| 2017 | 4 |
| 2018 | 4 |
| 2019 | 4 |
| 2020 | 7 |
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Sub-contact unit and direct current relay including same
US-2024363297-A1 · Oct 31, 2024 · US
Arc extinguishing chamber base of molded case circuit breaker
US-11764019-B2 · Sep 19, 2023 · US
Liquid arc extinguish chamber for direct current breaking, direct current breaker and method thereof
US-11443909-B2 · Sep 13, 2022 · US
Electric switching unit comprising a filtering device
US-11270857-B2 · Mar 8, 2022 · US
Circuit interrupter
US-11264192-B2 · Mar 1, 2022 · US
Electric switch provided with an arc-blasting unit
US-10984973-B2 · Apr 20, 2021 · US
Arc extinguishing chamber base of molded case circuit breaker
US-2021110987-A1 · Apr 15, 2021 · US
Circuit interrupter
US-2021066007-A1 · Mar 4, 2021 · US
Electric switching unit comprising a filtering device
US-2020411263-A1 · Dec 31, 2020 · US
Liquid arc extinguish chamber for direct current breaking, direct current breaker and method thereof
US-2020343063-A1 · Oct 29, 2020 · US
Manufacturing method for foam fuse filler and cartridge fuse
US-10685804-B2 · Jun 16, 2020 · US
Gas circuit breaker
US-10665399-B2 · May 26, 2020 · US
Electric switch provided with an arc-blasting unit
US-2020161066-A1 · May 21, 2020 · US
Circuit breaker with enhanced arc extinguishing chamber
US-10650993-B1 · May 12, 2020 · US
Gas-blast circuit breaker
US-10573475-B2 · Feb 25, 2020 · US
Gas circuit breaker
US-2019362913-A1 · Nov 28, 2019 · US
Gas-blast circuit breaker
US-2019295791-A1 · Sep 26, 2019 · US
Apparatus and method for switching a direct current
US-10243357-B2 · Mar 26, 2019 · US
Switchgear arrangement
US-10199189-B2 · Feb 5, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01H33/72?
- CPC H01H33/72 is the Cooperative Patent Classification code for “having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber.”
- How many patents are filed under CPC H01H33/72 (having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber)?
- Our database includes 43 publications tagged with this CPC code.
- Is patent activity under CPC H01H33/72 growing?
- Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).