Graded spark gap design for internally gapped surge arrester
US-12494308-B2 · Dec 9, 2025 · US
Arrangements for improving potential distribution
Arrangements for improving potential distribution · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01T4/20 |
| Official title | Arrangements for improving potential distribution |
| Display label | Arrangements for improving potential distribution |
| Total patents | 27 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 2 |
| 2020 | 4 |
| 2021 | 2 |
| 2022 | 3 |
| 2023 | 3 |
| 2024 | 4 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Spark gap assembly for overvoltage protection and surge arrester
US-2025343398-A1 · Nov 6, 2025 · US
Spark gap assembly for overvoltage protection and surge arrester
US-12362542-B2 · Jul 15, 2025 · US
Spark gap arrangement
US-12244123-B2 · Mar 4, 2025 · US
Multi-spark gap
US-12142897-B2 · Nov 12, 2024 · US
Spark gap arrangement with ignition apparatus for protecting a high-voltage device and ignition apparatus therefor
US-12095237-B2 · Sep 17, 2024 · US
Spark gap assembly for overvoltage protection and surge arrester
US-2024305067-A1 · Sep 12, 2024 · US
Spark gap assembly for overvoltage protection and surge arrester
US-11973322-B2 · Apr 30, 2024 · US
Spark gap arrangement
US-2023352914-A1 · Nov 2, 2023 · US
Multi-spark gap
US-2023352916-A1 · Nov 2, 2023 · US
Graded spark gap design for internally gapped surge arrester
US-2023268103-A1 · Aug 24, 2023 · US
Spark gap assembly for overvoltage protection and surge arrester
US-2022200245-A1 · Jun 23, 2022 · US
Spark gap arrangement with ignition apparatus for protecting a high-voltage device and ignition apparatus therefor
US-2022085579-A1 · Mar 17, 2022 · US
Gas switch triggered by optical pulse introduced by optical fiber
US-11264782-B2 · Mar 1, 2022 · US
Gas switch triggered by optical pulse introduced by optical fiber
US-2021210932-A1 · Jul 8, 2021 · US
Surge protection device
US-10903647-B2 · Jan 26, 2021 · US
Overvoltage protection circuit
US-10763665-B2 · Sep 1, 2020 · US
Multiple spark-gap arrester
US-10749316-B2 · Aug 18, 2020 · US
Laser triggered multi-stage vacuum switch
US-10594113-B2 · Mar 17, 2020 · US
Surge protection device
US-2020044442-A1 · Feb 6, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01T4/20?
- CPC H01T4/20 is the Cooperative Patent Classification code for “Arrangements for improving potential distribution.”
- How many patents are filed under CPC H01T4/20 (Arrangements for improving potential distribution)?
- Our database includes 27 publications tagged with this CPC code.
- Is patent activity under CPC H01T4/20 growing?
- Publication counts under this code: 4 in 2024 vs 4 in 2025 (latest complete years).