Bushing comprising low-viscosity insulating fluid and electrical facility with bushing
US-12580103-B2 · Mar 17, 2026 · US
Insulators containing liquid, e.g. oil
Insulators containing liquid, e.g. oil · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01B17/34 |
| Official title | Insulators containing liquid, e.g. oil |
| Display label | Insulators containing liquid, e.g. oil |
| Total patents | 29 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 2 |
| 2017 | 4 |
| 2018 | 3 |
| 2019 | 4 |
| 2020 | 2 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Wet-type outdoor cable termination
US-2025372992-A1 · Dec 4, 2025 · US
Power equipment and associated manufacturing method
US-12170156-B2 · Dec 17, 2024 · US
Bushing comprising low-viscosity insulating fluid and electrical facility with bushing
US-2024347234-A1 · Oct 17, 2024 · US
Power equipment and associated manufacturing method
US-2023352216-A1 · Nov 2, 2023 · US
Smart electrical bushing with integrated sensor
US-2023178270-A1 · Jun 8, 2023 · US
Electrical isolator
US-11631510-B2 · Apr 18, 2023 · US
Electrical isolator
US-11346475-B2 · May 31, 2022 · US
Power cable
US-11049631-B2 · Jun 29, 2021 · US
Electrical Isolator
US-2020318764-A1 · Oct 8, 2020 · US
Power cable
US-2020051713-A1 · Feb 13, 2020 · US
Electrical isolator
US-2019326037-A1 · Oct 24, 2019 · US
Electrical isolator
US-10361017-B2 · Jul 23, 2019 · US
Electric bushings having insulation medium retention seals
US-10304595-B2 · May 28, 2019 · US
Electrical bushing
US-10210969-B2 · Feb 19, 2019 · US
Electric bushings having insulation medium retention seals
US-10032546-B2 · Jul 24, 2018 · US
Mobile transformer bushing connection
US-2018115100-A1 · Apr 26, 2018 · US
Electrical Bushing
US-2018102205-A1 · Apr 12, 2018 · US
Electrical power component containing an insulating fluid and a condenser core
US-9799439-B2 · Oct 24, 2017 · US
Renewable hydrocarbon based insulating fluid
US-9786408-B2 · Oct 10, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01B17/34?
- CPC H01B17/34 is the Cooperative Patent Classification code for “Insulators containing liquid, e.g. oil.”
- How many patents are filed under CPC H01B17/34 (Insulators containing liquid, e.g. oil)?
- Our database includes 29 publications tagged with this CPC code.
- Is patent activity under CPC H01B17/34 growing?
- Publication counts under this code: 2 in 2024 vs 1 in 2025 (latest complete years).