Power stealing in relay circuits
US-12206280-B1 · Jan 21, 2025 · US
using discharge tubes without control electrode or semiconductor devices without control electrode · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02M5/20 |
| Official title | using discharge tubes without control electrode or semiconductor devices without control electrode |
| Display label | using discharge tubes without control electrode or semiconductor devices without control electrode |
| Total patents | 8 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2017 | 2 |
| 2019 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 1 |
| 2025 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12206280-B1 · Jan 21, 2025 · US
US-11742692-B1 · Aug 29, 2023 · US
US-11418124-B2 · Aug 16, 2022 · US
US-2021359616-A1 · Nov 18, 2021 · US
US-10411591-B2 · Sep 10, 2019 · US
US-2017179813-A1 · Jun 22, 2017 · US
US-9590495-B2 · Mar 7, 2017 · US
US-2015326136-A1 · Nov 12, 2015 · US