Charging system using wound rotor synchronous motor
US-2018358875-A1 · Dec 13, 2018 · US
using semiconductor devices
using 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 | H02P9/30 |
| Official title | using semiconductor devices |
| Display label | using semiconductor devices |
| Total patents | 154 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 11 |
| 2016 | 15 |
| 2017 | 18 |
| 2018 | 18 |
| 2019 | 23 |
| 2020 | 20 |
| 2021 | 19 |
| 2022 | 8 |
| 2023 | 8 |
| 2024 | 2 |
| 2025 | 12 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hybrid device with segmented waveform converter
US-10148202-B2 · Dec 4, 2018 · US
Segmented waveform converter on controlled field variable speed generator
US-10148207-B2 · Dec 4, 2018 · US
Method for detecting a state of a vehicle electric system
US-2018304751-A1 · Oct 25, 2018 · US
Systems and methods for power generation synchronous condensing
US-2018298777-A1 · Oct 18, 2018 · US
Vehicle and control method therefor
US-2018281596-A1 · Oct 4, 2018 · US
DC synchronous machine
US-10075106-B2 · Sep 11, 2018 · US
Segmented waveform converter on controlled field variable speed generator
US-10063097-B2 · Aug 28, 2018 · US
System and method for an inverter for self-excitation of an induction machine
US-10014807-B2 · Jul 3, 2018 · US
Doubly-fed induction generator system for a gas turbine
US-2018175700-A1 · Jun 21, 2018 · US
Doubly-fed induction generator system for a gas turbine
US-10003239-B1 · Jun 19, 2018 · US
Control device for rotating electric machine
US-9991833-B2 · Jun 5, 2018 · US
Control of alternator with front end accessory drive
US-9935572-B2 · Apr 3, 2018 · US
Safety circuit and brush holder for preventing fault conditions in an alternator
US-9929685-B2 · Mar 27, 2018 · US
Power generation control device of vehicle alternating current generator
US-9899943-B2 · Feb 20, 2018 · US
Coordinated control method of generator and SVC for improving power throughput and controller thereof
US-9893524-B2 · Feb 13, 2018 · US
System and method for an inverter for self-excitation of an induction machine
US-2017353134-A1 · Dec 7, 2017 · US
Harmonics mitigation in multiphase generator-conversion systems
US-9837943-B2 · Dec 5, 2017 · US
Engine generator
US-9837941-B2 · Dec 5, 2017 · US
System and method for vehicle diagnostics
US-2017331402-A1 · Nov 16, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02P9/30?
- CPC H02P9/30 is the Cooperative Patent Classification code for “using semiconductor devices.”
- How many patents are filed under CPC H02P9/30 (using semiconductor devices)?
- Our database includes 154 publications tagged with this CPC code.
- Is patent activity under CPC H02P9/30 growing?
- Publication counts under this code: 2 in 2024 vs 12 in 2025 (latest complete years).