Flameproof surge protector
US-11973324-B2 · Apr 30, 2024 · US
Housings (H01T4/06 takes precedence)
Housings (H01T4/06 takes precedence) · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01T4/04 |
| Official title | Housings (H01T4/06 takes precedence) |
| Display label | Housings (H01T4/06 takes precedence) |
| Total patents | 70 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 8 |
| 2017 | 3 |
| 2018 | 6 |
| 2019 | 7 |
| 2020 | 8 |
| 2021 | 13 |
| 2022 | 3 |
| 2023 | 5 |
| 2024 | 4 |
| 2025 | 7 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Arc mitigation devices and systems
US-2024106204-A1 · Mar 28, 2024 · US
Conductor assembly
US-2023377781-A1 · Nov 23, 2023 · US
Multi-spark gap
US-2023352916-A1 · Nov 2, 2023 · US
Arc mitigation devices
US-11791611-B2 · Oct 17, 2023 · US
Gas arrester
US-11710946-B2 · Jul 25, 2023 · US
Flameproof surge protector
US-2023073865-A1 · Mar 9, 2023 · US
Endoscope and discharge control unit
US-11369019-B2 · Jun 21, 2022 · US
Gas switch triggered by optical pulse introduced by optical fiber
US-11264782-B2 · Mar 1, 2022 · US
Arc mitigation devices and systems
US-2022045484-A1 · Feb 10, 2022 · US
Shatter protection
US-11189400-B2 · Nov 30, 2021 · US
Arc mitigation devices and systems for panelboard applications
US-11183817-B2 · Nov 23, 2021 · US
Bus mounted surge protection devices
US-11177653-B2 · Nov 16, 2021 · US
Method for producing a gas-tight metal-ceramic join and use of the gas-tight metal-ceramic join
US-11154945-B2 · Oct 26, 2021 · US
Equipment enclosure with self-sealing multilayer wall structure
US-11158999-B2 · Oct 26, 2021 · US
Gas Arrester
US-2021296863-A1 · Sep 23, 2021 · US
Surge arrester, and manufacturing process for a surge arrester
US-2021287830-A1 · Sep 16, 2021 · US
Gas arrester
US-11063409-B2 · Jul 13, 2021 · US
Gas switch triggered by optical pulse introduced by optical fiber
US-2021210932-A1 · Jul 8, 2021 · US
Shatter protection
US-2021166843-A1 · Jun 3, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01T4/04?
- CPC H01T4/04 is the Cooperative Patent Classification code for “Housings (H01T4/06 takes precedence).”
- How many patents are filed under CPC H01T4/04 (Housings (H01T4/06 takes precedence))?
- Our database includes 70 publications tagged with this CPC code.
- Is patent activity under CPC H01T4/04 growing?
- Publication counts under this code: 4 in 2024 vs 7 in 2025 (latest complete years).