Device and method for operating an electric machine
US-2016380569-A1 · Dec 29, 2016 · US
for stopping or slowing an AC motor
for stopping or slowing an AC motor · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02P3/18 |
| Official title | for stopping or slowing an AC motor |
| Display label | for stopping or slowing an AC motor |
| Total patents | 647 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 41 |
| 2016 | 46 |
| 2017 | 59 |
| 2018 | 59 |
| 2019 | 58 |
| 2020 | 64 |
| 2021 | 62 |
| 2022 | 61 |
| 2023 | 69 |
| 2024 | 56 |
| 2025 | 59 |
| 2026 | 13 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Reverse rotation braking for a PM motor
US-9525369-B2 · Dec 20, 2016 · US
Synchronizing motors for an electric propulsion system
US-2016365810-A1 · Dec 15, 2016 · US
Power interrupting device
US-2016336735-A1 · Nov 17, 2016 · US
Apparatus and method for supplying hybrid power in marine plant
US-2016308362-A1 · Oct 20, 2016 · US
Method and device for a safe emergency stop of an elevator
US-9434575-B2 · Sep 6, 2016 · US
Electric motor control device
US-2016248347-A1 · Aug 25, 2016 · US
Generating power from a motor in supply-loss event
US-2016233805-A1 · Aug 11, 2016 · US
Electric brake device
US-2016178021-A1 · Jun 23, 2016 · US
Method for braking an electric drive motor
US-9306478-B2 · Apr 5, 2016 · US
Excitation device
US-9293955-B2 · Mar 22, 2016 · US
Four Quadrant Voltage Limiter for Rotor Flux Oriented Machine Control
US-2016079901-A1 · Mar 17, 2016 · US
Power conversion apparatus
US-9287698-B2 · Mar 15, 2016 · US
Motor controller and construction machine provided therewith
US-9287808-B2 · Mar 15, 2016 · US
Controller for power converter
US-9281772-B2 · Mar 8, 2016 · US
Electric transportation system
US-2016059704-A1 · Mar 3, 2016 · US
Reverse recovery current prevention device and motor driving apparatus
US-9252679-B2 · Feb 2, 2016 · US
Motor control device equipped with torque command limiting function at power outage
US-2016028331-A1 · Jan 28, 2016 · US
Motor control device
US-2016020721-A1 · Jan 21, 2016 · US
Controller for power converter
US-2015381092-A1 · Dec 31, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02P3/18?
- CPC H02P3/18 is the Cooperative Patent Classification code for “for stopping or slowing an AC motor.”
- How many patents are filed under CPC H02P3/18 (for stopping or slowing an AC motor)?
- Our database includes 647 publications tagged with this CPC code.
- Is patent activity under CPC H02P3/18 growing?
- Publication counts under this code: 56 in 2024 vs 59 in 2025 (latest complete years).