Wirelessly transferring power within an electric machine with actively rectified rotor windings
US-2024195269-A1 · Jun 13, 2024 · US
characterised by the arrangement of exciting windings
characterised by the arrangement of exciting windings · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02K19/26 |
| Official title | characterised by the arrangement of exciting windings |
| Display label | characterised by the arrangement of exciting windings |
| Total patents | 94 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 2 |
| 2017 | 10 |
| 2018 | 5 |
| 2019 | 18 |
| 2020 | 8 |
| 2021 | 17 |
| 2022 | 5 |
| 2023 | 4 |
| 2024 | 8 |
| 2025 | 9 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Rotating electrical machine
US-11146138-B2 · Oct 12, 2021 · US
Rotational electric machine
US-11133732-B2 · Sep 28, 2021 · US
Field coil type rotating electric machine
US-2021226489-A1 · Jul 22, 2021 · US
Field excitation system and method for a wound rotor synchronous generator
US-2021203259-A1 · Jul 1, 2021 · US
Field winding type rotary machine
US-11050330-B2 · Jun 29, 2021 · US
Rotational electric machine
US-11050331-B2 · Jun 29, 2021 · US
Control apparatus for the rotary electrical machine
US-10958202-B2 · Mar 23, 2021 · US
Thyristor starter
US-2021083602-A1 · Mar 18, 2021 · US
Field-winding-type rotating electric machine
US-2020373822-A1 · Nov 26, 2020 · US
Field coil type rotating electric machine
US-2020373823-A1 · Nov 26, 2020 · US
Electrical synchronous machine and method for at least partially circumferentially producing an electrical synchronous machine
US-10840751-B2 · Nov 17, 2020 · US
DC excitation of the doubly fed brushless induction starter generator
US-10826366-B2 · Nov 3, 2020 · US
Electric machines having cores with distributed poles
US-2020313472-A1 · Oct 1, 2020 · US
Synchronous inverter
US-10778123-B2 · Sep 15, 2020 · US
Rotary electric machine
US-2020161952-A1 · May 21, 2020 · US
Rotating direct current power supply for synchronous machines
US-10581357-B2 · Mar 3, 2020 · US
Electromagnetic machine system having current injection for inductive excitation of windings
US-10498279-B2 · Dec 3, 2019 · US
Rotating direct current power supply for synchronous machines
US-2019348936-A1 · Nov 14, 2019 · US
Control apparatus for the rotary electrical machine
US-2019341867-A1 · Nov 7, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02K19/26?
- CPC H02K19/26 is the Cooperative Patent Classification code for “characterised by the arrangement of exciting windings.”
- How many patents are filed under CPC H02K19/26 (characterised by the arrangement of exciting windings)?
- Our database includes 94 publications tagged with this CPC code.
- Is patent activity under CPC H02K19/26 growing?
- Publication counts under this code: 8 in 2024 vs 9 in 2025 (latest complete years).