Systems and methods for speed regulation of induction motors
US-2024313685-A1 · Sep 19, 2024 · US
Controlling based on slip frequency, e.g. adding slip frequency and speed proportional frequency
Controlling based on slip frequency, e.g. adding slip frequency and speed proportional frequency · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02P23/08 |
| Official title | Controlling based on slip frequency, e.g. adding slip frequency and speed proportional frequency |
| Display label | Controlling based on slip frequency, e.g. adding slip frequency and speed proportional frequency |
| Total patents | 65 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 4 |
| 2017 | 4 |
| 2018 | 9 |
| 2019 | 9 |
| 2020 | 9 |
| 2021 | 4 |
| 2022 | 9 |
| 2023 | 5 |
| 2024 | 3 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Superconducting rotating machine and method of controlling superconducting rotating machine
US-2023421083-A1 · Dec 28, 2023 · US
Determination of operation mode for ac asynchronous three-phrase motor in escalator system
US-2023318502-A1 · Oct 5, 2023 · US
Determination of operation mode for AC asynchronous three-phrase motor in escalator system
US-11764716-B1 · Sep 19, 2023 · US
Inverter control device and method
US-11711028-B2 · Jul 25, 2023 · US
Control of an induction generator of a wind turbine
US-2023079096-A1 · Mar 16, 2023 · US
Monitoring device for a slipform paver for monitoring the compaction of concrete and a method for monitoring the compaction of concrete during operation of a slipform paver
US-11525224-B2 · Dec 13, 2022 · US
Inverter control device
US-11482963-B2 · Oct 25, 2022 · US
Inverter control device
US-11456691-B2 · Sep 27, 2022 · US
Estimating method for estimating rotor frequency of motor
US-11424708-B2 · Aug 23, 2022 · US
Inverter control device and method
US-2022158569-A1 · May 19, 2022 · US
Variable-gauge train control apparatus
US-2022048544-A1 · Feb 17, 2022 · US
Inverter control device
US-2022014139-A1 · Jan 13, 2022 · US
Inverter control device
US-2022014138-A1 · Jan 13, 2022 · US
Induction motor slip calculation
US-11218103-B2 · Jan 4, 2022 · US
Induction motor control
US-11207480-B2 · Dec 28, 2021 · US
Estimating method for estimating rotor frequency of motor
US-2021399665-A1 · Dec 23, 2021 · US
Induction motor slip calculation
US-2021111653-A1 · Apr 15, 2021 · US
Monitoring device for a slipform paver for monitoring the compaction of concrete and a method for monitoring the compaction of concrete during operation of a slipform paver
US-2021087758-A1 · Mar 25, 2021 · US
Apparatus for reducing belt slip
US-10879827-B2 · Dec 29, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02P23/08?
- CPC H02P23/08 is the Cooperative Patent Classification code for “Controlling based on slip frequency, e.g. adding slip frequency and speed proportional frequency.”
- How many patents are filed under CPC H02P23/08 (Controlling based on slip frequency, e.g. adding slip frequency and speed proportional frequency)?
- Our database includes 65 publications tagged with this CPC code.
- Is patent activity under CPC H02P23/08 growing?
- Publication counts under this code: 3 in 2024 vs 3 in 2025 (latest complete years).