Gas circuit breaker
US-2018277323-A1 · Sep 27, 2018 · US
the arc-extinguishing fluid being air or gas
the arc-extinguishing fluid being air or gas · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01H33/91 |
| Official title | the arc-extinguishing fluid being air or gas |
| Display label | the arc-extinguishing fluid being air or gas |
| Total patents | 169 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 18 |
| 2016 | 21 |
| 2017 | 17 |
| 2018 | 22 |
| 2019 | 18 |
| 2020 | 16 |
| 2021 | 17 |
| 2022 | 11 |
| 2023 | 10 |
| 2024 | 8 |
| 2025 | 10 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Internal tulip sleeve of the female arcing contact of a high voltage electric circuit breaker
US-10002733-B2 · Jun 19, 2018 · US
Circuit breaker having closing resistor
US-9997321-B2 · Jun 12, 2018 · US
Device for interrupting non-short circuit currents only, in particular disconnector or earthing switch
US-2018040442-A1 · Feb 8, 2018 · US
High voltage puffer breaker and a circuit breaker unit comprising such a puffer breaker
US-9837230-B2 · Dec 5, 2017 · US
Gas circuit breaker
US-2017345593-A1 · Nov 30, 2017 · US
Circuit breaker having closing resistor
US-2017301498-A1 · Oct 19, 2017 · US
Gas Circuit Breaker
US-2017278654-A1 · Sep 28, 2017 · US
Abrasion resistant material, puffer cylinder, and puffer type gas circuit breaker
US-2017271113-A1 · Sep 21, 2017 · US
Gas circuit breaker
US-2017263398-A1 · Sep 14, 2017 · US
Internal tulip sleeve of the female arcing contact of a high voltage electric circuit breaker
US-2017256373-A1 · Sep 7, 2017 · US
Gas circuit breaker
US-9754742-B2 · Sep 5, 2017 · US
Gas circuit breaker
US-9704679-B2 · Jul 11, 2017 · US
Gas insulated circuit breaker
US-2017178845-A1 · Jun 22, 2017 · US
Circuit breakers, arc expansion chambers, and operating methods
US-2017162350-A1 · Jun 8, 2017 · US
Wear-resistant material, method for producing the same, puffer cylinder and puffer-type gas circuit breaker
US-9653239-B2 · May 16, 2017 · US
Electrical switching device with a triple motion contact arrangement
US-9627155-B2 · Apr 18, 2017 · US
High voltage puffer breaker and a circuit breaker unit comprising such a puffer breaker
US-2017084412-A1 · Mar 23, 2017 · US
Gas Circuit Breaker
US-2017062157-A1 · Mar 2, 2017 · US
Pressure switch for oil supply
US-9562545-B2 · Feb 7, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01H33/91?
- CPC H01H33/91 is the Cooperative Patent Classification code for “the arc-extinguishing fluid being air or gas.”
- How many patents are filed under CPC H01H33/91 (the arc-extinguishing fluid being air or gas)?
- Our database includes 169 publications tagged with this CPC code.
- Is patent activity under CPC H01H33/91 growing?
- Publication counts under this code: 8 in 2024 vs 10 in 2025 (latest complete years).