Pump actuating device, and associated pumping system, aircraft and fuel supply method
US-12519410-B2 · Jan 6, 2026 · US
for pole-changing
for pole-changing · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02P25/20 |
| Official title | for pole-changing |
| Display label | for pole-changing |
| Total patents | 53 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 5 |
| 2017 | 3 |
| 2018 | 2 |
| 2019 | 8 |
| 2020 | 9 |
| 2021 | 10 |
| 2022 | 5 |
| 2023 | 2 |
| 2024 | 5 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for adjusting an operational performance of an electric machine, data processing device, computer program, computer-readable storage medium, and electric drive system
US-12381503-B2 · Aug 5, 2025 · US
Electronic pole-changing for induction motors
US-2025047226-A1 · Feb 6, 2025 · US
Pump actuating device, and associated pumping system, aircraft and fuel supply method
US-2024396484-A1 · Nov 28, 2024 · US
Vehicle drive system
US-2024388182-A1 · Nov 21, 2024 · US
Vehicle drive system
US-2024388181-A1 · Nov 21, 2024 · US
Pole switching in multi-phase machines
US-11979103-B2 · May 7, 2024 · US
Vehicle and power battery heating apparatus and method thereof
US-11876197-B2 · Jan 16, 2024 · US
Method for adjusting an operational performance of an electric machine, data processing device, computer program, computer-readable storage medium, and electric drive system
US-2023402950-A1 · Dec 14, 2023 · US
Pole switching in multi-phase machines
US-2023179134-A1 · Jun 8, 2023 · US
Vehicle
US-11485236-B2 · Nov 1, 2022 · US
Method and system for brushless wound field synchronous machines
US-11476786-B2 · Oct 18, 2022 · US
Motor control apparatus
US-11356047-B2 · Jun 7, 2022 · US
Vehicle and power battery heating apparatus and method thereof
US-2022077518-A1 · Mar 10, 2022 · US
Rotary electric machine and rotary electric machine system
US-11223311-B2 · Jan 11, 2022 · US
Method and system for brushless wound field synchronous machines
US-2021336574-A1 · Oct 28, 2021 · US
Control device for pole-number switching electric motor
US-11152883-B2 · Oct 19, 2021 · US
Control apparatus for pole-changing rotating electric machine
US-11038456-B2 · Jun 15, 2021 · US
Electric drive system with reconfigurable machine windings
US-10998840-B2 · May 4, 2021 · US
Controller for AC rotary machine
US-10992246-B2 · Apr 27, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02P25/20?
- CPC H02P25/20 is the Cooperative Patent Classification code for “for pole-changing.”
- How many patents are filed under CPC H02P25/20 (for pole-changing)?
- Our database includes 53 publications tagged with this CPC code.
- Is patent activity under CPC H02P25/20 growing?
- Publication counts under this code: 5 in 2024 vs 2 in 2025 (latest complete years).