Electrical power system
US-2025316978-A1 · Oct 9, 2025 · US
Motor/generators
Motor/generators · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02K47/04 |
| Official title | Motor/generators |
| Display label | Motor/generators |
| Total patents | 38 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2018 | 1 |
| 2019 | 3 |
| 2020 | 12 |
| 2021 | 6 |
| 2022 | 3 |
| 2023 | 4 |
| 2024 | 1 |
| 2025 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hybrid electric aircraft propulsion system and method
US-2025293627-A1 · Sep 18, 2025 · US
Power conditioning for high-speed machine generator
US-2025210982-A1 · Jun 26, 2025 · US
Planar drive system
US-12289022-B2 · Apr 29, 2025 · US
Power conversion apparatus
US-2025096664-A1 · Mar 20, 2025 · US
Power conversion apparatus
US-12191739-B2 · Jan 7, 2025 · US
Rectifier
US-12027940-B2 · Jul 2, 2024 · US
Hybrid electric propulsion system and method of operation
US-11757386-B2 · Sep 12, 2023 · US
Power unit structure for vehicle
US-11677294-B2 · Jun 13, 2023 · US
Planar drive system
US-2023072018-A1 · Mar 9, 2023 · US
Rectifier
US-2023018916-A1 · Jan 19, 2023 · US
Hybrid electric propulsion system and method of operation
US-2022173677-A1 · Jun 2, 2022 · US
Hybrid electric propulsion system and method of operation
US-11283376-B2 · Mar 22, 2022 · US
Synchronization of generator and electric motor in a hybrid electric aircraft propulsion system
US-11233470-B2 · Jan 25, 2022 · US
Electrically driven vehicle
US-11203274-B2 · Dec 21, 2021 · US
Power conversion apparatus
US-2021351684-A1 · Nov 11, 2021 · US
Power unit structure for vehicle
US-11095190-B2 · Aug 17, 2021 · US
Power unit structure for vehicle
US-2021194318-A1 · Jun 24, 2021 · US
Hybrid electric propulsion system and method of operation
US-11025181-B2 · Jun 1, 2021 · US
Powertrain system
US-10958196-B2 · Mar 23, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02K47/04?
- CPC H02K47/04 is the Cooperative Patent Classification code for “Motor/generators.”
- How many patents are filed under CPC H02K47/04 (Motor/generators)?
- Our database includes 38 publications tagged with this CPC code.
- Is patent activity under CPC H02K47/04 growing?
- Publication counts under this code: 1 in 2024 vs 6 in 2025 (latest complete years).