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US-11348748-B2 · May 31, 2022 · US
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wherein the break is in air at atmospheric pressure, e.g. in open air
wherein the break is in air at atmospheric pressure, e.g. in open air · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01H33/65 |
| Official title | wherein the break is in air at atmospheric pressure, e.g. in open air |
| Display label | wherein the break is in air at atmospheric pressure, e.g. in open air |
| Total patents | 9 |
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 | 1 |
| 2017 | 3 |
| 2018 | 2 |
| 2019 | 1 |
| 2021 | 1 |
| 2022 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
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US-2021193416-A1 · Jun 24, 2021 · US
Air circuit breaker having an improved electric arc quenching chamber
US-10192700-B2 · Jan 29, 2019 · US
Multipolar air-break circuit breaker including an improved device for filtering quenching gas
US-10020144-B2 · Jul 10, 2018 · US
Electrical apparatus for breaking an electric current in air comprising an improved extinguishing gas filtering device
US-10020143-B2 · Jul 10, 2018 · US
Air circuit breaker having an improved electric arc quenching chamber
US-2017309425-A1 · Oct 26, 2017 · US
Electrical apparatus for breaking an electric current in air comprising an improved extinguishing gas filtering device
US-2017278653-A1 · Sep 28, 2017 · US
Multipolar air-break circuit breaker including an improved device for filtering quenching gas
US-2017169972-A1 · Jun 15, 2017 · US
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US-9117608-B2 · Aug 25, 2015 · US