Electric power conversion device
US-2019356235-A1 · Nov 21, 2019 · US
using discharge tubes or semiconductor devices
using discharge tubes or semiconductor devices · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02J7/24 |
| Official title | using discharge tubes or semiconductor devices |
| Display label | using discharge tubes or semiconductor devices |
| Total patents | 138 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 8 |
| 2017 | 8 |
| 2018 | 16 |
| 2019 | 31 |
| 2020 | 20 |
| 2021 | 12 |
| 2022 | 18 |
| 2023 | 5 |
| 2024 | 10 |
| 2025 | 8 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electric power conversion device
US-2019357392-A1 · Nov 21, 2019 · US
Electric power conversion device
US-2019353686-A1 · Nov 21, 2019 · US
Method, system and device for regulating voltage fluctuations induced by at least one renewable energy source
US-10483789-B2 · Nov 19, 2019 · US
Voltage regulator of a generator
US-2019348858-A1 · Nov 14, 2019 · US
Pi source inverter-converter for hybrid electric vehicles
US-10468968-B2 · Nov 5, 2019 · US
Energy Storage System
US-2019326773-A1 · Oct 24, 2019 · US
Recloser battery assembly
US-2019319224-A1 · Oct 17, 2019 · US
Power supply system of vehicle
US-2019305393-A1 · Oct 3, 2019 · US
Power System With Battery Charging Control
US-2019305597-A1 · Oct 3, 2019 · US
Motor system
US-2019296568-A1 · Sep 26, 2019 · US
Electric power converter and driving apparatus
US-10389245-B2 · Aug 20, 2019 · US
Recloser battery assembly with hot stick adaptor and battery tube adaptor
US-10355253-B2 · Jul 16, 2019 · US
Recloser battery assembly with torque-limiting cap
US-10347879-B2 · Jul 9, 2019 · US
Apparatus and method for variably controlling alternator
US-10340830-B2 · Jul 2, 2019 · US
Recloser battery assembly
US-10333112-B2 · Jun 25, 2019 · US
Generator system and control method
US-10293805-B2 · May 21, 2019 · US
Cell balancing with local sensing and switching
US-2019148952-A1 · May 16, 2019 · US
Gated diode in a press-fit housing and an alternator assembly having a gated diode arranged in a load path
US-10276706-B2 · Apr 30, 2019 · US
Power conversion device
US-2019123622-A1 · Apr 25, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02J7/24?
- CPC H02J7/24 is the Cooperative Patent Classification code for “using discharge tubes or semiconductor devices.”
- How many patents are filed under CPC H02J7/24 (using discharge tubes or semiconductor devices)?
- Our database includes 138 publications tagged with this CPC code.
- Is patent activity under CPC H02J7/24 growing?
- Publication counts under this code: 10 in 2024 vs 8 in 2025 (latest complete years).