Electrical power system
US-2024002062-A1 · Jan 4, 2024 · US
Electricity
Electricity · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02P9/02 |
| Official title | — |
| Display label | Electricity (mapped technology topic) |
| Total patents | 447 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 37 |
| 2016 | 36 |
| 2017 | 23 |
| 2018 | 28 |
| 2019 | 39 |
| 2020 | 48 |
| 2021 | 46 |
| 2022 | 57 |
| 2023 | 47 |
| 2024 | 44 |
| 2025 | 32 |
| 2026 | 10 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Power oscillation damping controller
US-9528499-B2 · Dec 27, 2016 · US
Method for driving emergency generator using energy storage system
US-9520818-B2 · Dec 13, 2016 · US
Wind turbine having improved overvoltage protection
US-9515594-B2 · Dec 6, 2016 · US
Generator management system that selectively activates generators based on an operating parameter
US-2016344186-A1 · Nov 24, 2016 · US
Controlled frequency generator with optimized power factor
US-9450527-B2 · Sep 20, 2016 · US
Permanent magnet generator inductance profile identification
US-9438155-B2 · Sep 6, 2016 · US
Generator management system that selectively activates generators based on an operating parameter
US-9431942-B2 · Aug 30, 2016 · US
Nine phase induction motor starter/alternator
US-9416761-B2 · Aug 16, 2016 · US
Method of determining individual set points in a power plant controller, and a power plant controller
US-9407186-B2 · Aug 2, 2016 · US
Control of a permanent magnet synchronous generator wind turbine
US-9391554-B2 · Jul 12, 2016 · US
Resonant commutation system for exciting a three-phase alternator
US-9369075-B2 · Jun 14, 2016 · US
Electric power supply system
US-9369074-B2 · Jun 14, 2016 · US
Two stage flux switching machine for an electrical power generation system
US-2016141989-A1 · May 19, 2016 · US
Two stage flux switching machine for an electrical power generation system
US-9325269-B1 · Apr 26, 2016 · US
Power generation in a tubular structure by way of electromagnetic induction
US-9322389-B2 · Apr 26, 2016 · US
Synchronous Machine With Common Motor/Generator Exciter Stage
US-2016094114-A1 · Mar 31, 2016 · US
Method and apparatus for regulating an output voltage of an alternator
US-2016094171-A1 · Mar 31, 2016 · US
Increasing the excitation current of a multiphase AC generator connected to an electrical system of a motor vehicle upon the activation of the generator
US-9300236-B2 · Mar 29, 2016 · US
External power supply system
US-2016068066-A1 · Mar 10, 2016 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02P9/02?
- CPC H02P9/02 is the Cooperative Patent Classification code for “Electricity.”
- How many patents are filed under CPC H02P9/02 (Electricity)?
- Our database includes 447 publications tagged with this CPC code.
- Is patent activity under CPC H02P9/02 growing?
- Publication counts under this code: 44 in 2024 vs 32 in 2025 (latest complete years).