Interlocking and unlocking device for main switch trolley and grounding switch, and switchgear comprising same
US-2026018869-A1 · Jan 15, 2026 · US
Earthing arrangements
Earthing arrangements · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02B11/28 |
| Official title | Earthing arrangements |
| Display label | Earthing arrangements |
| Total patents | 40 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 6 |
| 2017 | 7 |
| 2018 | 4 |
| 2019 | 4 |
| 2020 | 2 |
| 2022 | 4 |
| 2023 | 2 |
| 2024 | 4 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Grounding device for circuit breaker
US-12388242-B2 · Aug 12, 2025 · US
Interlock system for a low, medium or high voltage switchgear
US-12322932-B2 · Jun 3, 2025 · US
Enclosure and Optimizations
US-2024258731-A1 · Aug 1, 2024 · US
Isolation device for voltage transformer cabinet and voltage transformer cabinet
US-2024243559-A1 · Jul 18, 2024 · US
Enclosure and optimizations
US-12034241-B2 · Jul 9, 2024 · US
Finger cluster connector for a rackable circuit breaker connecting with a grounding bus
US-11936146-B2 · Mar 19, 2024 · US
Grounding device for circuit breaker
US-2023420923-A1 · Dec 28, 2023 · US
Cam selector for an earthing switch
US-11616347-B2 · Mar 28, 2023 · US
Enclosure and optimizations
US-2022209516-A1 · Jun 30, 2022 · US
Single part finger cluster subassembly
US-2022209477-A1 · Jun 30, 2022 · US
Arrangement for earthing a DC intermediate link
US-11336196-B2 · May 17, 2022 · US
Interlock system for a low, medium or high voltage switchgear
US-2022052512-A1 · Feb 17, 2022 · US
Arrangement for earthing a dc intermediate link
US-2020266725-A1 · Aug 20, 2020 · US
Electrical ground and test devices and related methods
US-10613133-B2 · Apr 7, 2020 · US
Arc eliminator
US-10424442-B2 · Sep 24, 2019 · US
Circuit breaker with arc eliminator and power receiving/distributing equipment using same
US-10381824-B2 · Aug 13, 2019 · US
Earthing structure of earthing truck
US-10320095-B2 · Jun 11, 2019 · US
Integrated compact bushing structure combining the functionality of primary contact with a current transformer primary conductor and a post insulator
US-10218161-B2 · Feb 26, 2019 · US
Interlock device of withdrawable arc eliminator
US-10163587-B2 · Dec 25, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02B11/28?
- CPC H02B11/28 is the Cooperative Patent Classification code for “Earthing arrangements.”
- How many patents are filed under CPC H02B11/28 (Earthing arrangements)?
- Our database includes 40 publications tagged with this CPC code.
- Is patent activity under CPC H02B11/28 growing?
- Publication counts under this code: 4 in 2024 vs 2 in 2025 (latest complete years).