Linkage Device for Electric Switch Assembly and Electric Switch Assembly Comprising the Linkage Device
US-2025118505-A1 · Apr 10, 2025 · US
Means for breaking welded contacts; Indicating contact welding or other malfunction of the circuit breaker
Means for breaking welded contacts; Indicating contact welding or other malfunction of the circuit breaker · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01H71/501 |
| Official title | {Means for breaking welded contacts; Indicating contact welding or other malfunction of the circuit breaker} |
| Display label | Means for breaking welded contacts; Indicating contact welding or other malfunction of the circuit breaker |
| Total patents | 36 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 1 |
| 2017 | 4 |
| 2018 | 9 |
| 2019 | 8 |
| 2020 | 3 |
| 2021 | 3 |
| 2022 | 4 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Circuit breaker
US-11984282-B2 · May 14, 2024 · US
Power switch enclosure
US-2022415588-A1 · Dec 29, 2022 · US
Power switch enclosure
US-11437203-B2 · Sep 6, 2022 · US
Circuit breaker
US-2022122791-A1 · Apr 21, 2022 · US
Operating attachment
US-11309156-B2 · Apr 19, 2022 · US
Electrical switching device with separable contacts and circuit breaker comprising such a device
US-11205553-B2 · Dec 21, 2021 · US
Control device for vacuum bottle contacts of an electrical switching device
US-11101087-B2 · Aug 24, 2021 · US
Electrical switching device with separable contacts and circuit breaker comprising such a device
US-2021166906-A1 · Jun 3, 2021 · US
Operating attachment
US-2020303149-A1 · Sep 24, 2020 · US
Control device for vacuum bottle contacts of an electrical switching device
US-2020273645-A1 · Aug 27, 2020 · US
Power switch enclosure
US-2020144002-A1 · May 7, 2020 · US
Power switch enclosure
US-10522305-B2 · Dec 31, 2019 · US
Molded-case circuit breaker with main contact interlock feature
US-10497526-B2 · Dec 3, 2019 · US
Multi-pole molded case circuit breaker with a safety device
US-10424454-B2 · Sep 24, 2019 · US
Removable switching element for an electrical switching device and switching device for switching an electric current comprising such a removable element
US-10361042-B2 · Jul 23, 2019 · US
Fusion welding isolation mechanism for operation mechanism of circuit breaker
US-10332715-B2 · Jun 25, 2019 · US
Operation mechanism of circuit breaker
US-10256066-B2 · Apr 9, 2019 · US
Two-level latch mechanism for operation mechanism of circuit breaker
US-10199196-B2 · Feb 5, 2019 · US
Multi-pole molded case circuit breaker
US-10176955-B2 · Jan 8, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01H71/501?
- CPC H01H71/501 is the Cooperative Patent Classification code for “Means for breaking welded contacts; Indicating contact welding or other malfunction of the circuit breaker.”
- How many patents are filed under CPC H01H71/501 (Means for breaking welded contacts; Indicating contact welding or other malfunction of the circuit breaker)?
- Our database includes 36 publications tagged with this CPC code.
- Is patent activity under CPC H01H71/501 growing?
- Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).