Test button loop device and circuit breaker
US-12504474-B2 · Dec 23, 2025 · US
the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure
the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01H71/526 |
| Official title | {the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure} |
| Display label | the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure |
| Total patents | 34 |
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 | 1 |
| 2016 | 5 |
| 2017 | 6 |
| 2018 | 5 |
| 2019 | 6 |
| 2020 | 7 |
| 2024 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electrical protection device configured to automatically determine a cause of an electrical circuit opening and associated method
US-2025046557-A1 · Feb 6, 2025 · US
Circuit breaker
US-2024387119-A1 · Nov 21, 2024 · US
Test button loop device and circuit breaker
US-2024201259-A1 · Jun 20, 2024 · US
Circuit breaker for isolating an electrical circuit
US-2020411259-A1 · Dec 31, 2020 · US
Circuit breaker
US-10825632-B2 · Nov 3, 2020 · US
Switching mechanism of circuit breaker
US-10811209-B2 · Oct 20, 2020 · US
Circuit breaker energy storage operating mechanism
US-10643801-B2 · May 5, 2020 · US
High current, compact fusible disconnect switch with dual slider bar actuator assembly
US-10580597-B2 · Mar 3, 2020 · US
Electronic protection device
US-10580607-B2 · Mar 3, 2020 · US
Switching mechanism of circuit breaker
US-2020020499-A1 · Jan 16, 2020 · US
Switchgear for an electric current with separable electrical contacts and with air switching
US-10418215-B2 · Sep 17, 2019 · US
Electrical installation switching device having a switching position display
US-10319540-B2 · Jun 11, 2019 · US
Operating mechanism of circuit breaker
US-10276330-B2 · Apr 30, 2019 · US
Circuit breaker
US-2019122846-A1 · Apr 25, 2019 · US
Circuit breaker having a floating moveable contact
US-10236149-B2 · Mar 19, 2019 · US
Circuit breaker toggle link apparatus, toggle link assemblies, circuit breaker trip mechanism assemblies, and methods of limiting cradle motion of a circuit breaker
US-10217591-B1 · Feb 26, 2019 · US
Electronic protection device
US-2018366290-A1 · Dec 20, 2018 · US
High current, compact fusible disconnect switch with dual slider bar actuator assembly
US-2018277322-A1 · Sep 27, 2018 · US
Switchgear for an electric current with separable electrical contacts and with air switching
US-2018240632-A1 · Aug 23, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01H71/526?
- CPC H01H71/526 is the Cooperative Patent Classification code for “the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure.”
- How many patents are filed under CPC H01H71/526 (the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure)?
- Our database includes 34 publications tagged with this CPC code.
- Is patent activity under CPC H01H71/526 growing?
- Publication counts under this code: 2 in 2024 vs 2 in 2025 (latest complete years).