Plug and play solid state controller for high efficiency motors
US-12483171-B2 · Nov 25, 2025 · US
by progressive increase of voltage applied to primary circuit of motor
by progressive increase of voltage applied to primary circuit of 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 | H02P1/28 |
| Official title | by progressive increase of voltage applied to primary circuit of motor |
| Display label | by progressive increase of voltage applied to primary circuit of motor |
| Total patents | 61 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 3 |
| 2017 | 4 |
| 2018 | 4 |
| 2019 | 8 |
| 2020 | 5 |
| 2021 | 8 |
| 2022 | 4 |
| 2023 | 6 |
| 2024 | 9 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Plug and Play Solid State Controller for High Efficiency Motors
US-2025202397-A1 · Jun 19, 2025 · US
Superconducting rotating machine and method of controlling superconducting rotating machine
US-12267031-B2 · Apr 1, 2025 · US
Induction motors including speed sensing circuits for motor control
US-12244188-B2 · Mar 4, 2025 · US
Solar power system for induction motor soft-starting and power compensation, and related methods
US-12126177-B2 · Oct 22, 2024 · US
Motor soft-starter control
US-12095391-B2 · Sep 17, 2024 · US
Solar power system for induction motor soft-starting and power compensation, and related methods
US-2024266836-A1 · Aug 8, 2024 · US
System and method for cooling power electronics of refrigerant compressors
US-12050036-B2 · Jul 30, 2024 · US
Control of motor soft starter using power electronic switching devices
US-2024235441-A9 · Jul 11, 2024 · US
Apparatus and methods for reduced voltage starting of motors with bumpless force transition
US-12034395-B2 · Jul 9, 2024 · US
Apparatus and Methods for Reduced Voltage Starting of Motors with Bumpless Force Transition
US-2024154552-A1 · May 9, 2024 · US
Control of motor soft starter using power electronic switching devices
US-2024136961-A1 · Apr 25, 2024 · US
Motor voltage synthesis in reduced voltage soft starters and motor starters employing the same
US-11863091-B2 · Jan 2, 2024 · US
Superconducting rotating machine and method of controlling superconducting rotating machine
US-2023421083-A1 · Dec 28, 2023 · US
Motor voltage synthesis in reduced voltage soft starters and motor starters employing the same
US-2023327593-A1 · Oct 12, 2023 · US
Drive control method, drive system, processing system and storage medium
US-11682987-B2 · Jun 20, 2023 · US
Power tool and control method for the same
US-11622500-B2 · Apr 11, 2023 · US
System and method for cooling power electronics of refrigerant compressors
US-2023087561-A1 · Mar 23, 2023 · US
Method to operate a three-phase cage motor
US-11552585-B2 · Jan 10, 2023 · US
Induction Motors Including Speed Sensing Circuits For Motor Control
US-2022345015-A1 · Oct 27, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02P1/28?
- CPC H02P1/28 is the Cooperative Patent Classification code for “by progressive increase of voltage applied to primary circuit of motor.”
- How many patents are filed under CPC H02P1/28 (by progressive increase of voltage applied to primary circuit of motor)?
- Our database includes 61 publications tagged with this CPC code.
- Is patent activity under CPC H02P1/28 growing?
- Publication counts under this code: 9 in 2024 vs 4 in 2025 (latest complete years).