Rotor for a rotating electric machine
US-11502584-B2 · Nov 15, 2022 · US
Connections between slip-rings and windings
Connections between slip-rings and 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 | H02K13/02 |
| Official title | Connections between slip-rings and windings |
| Display label | Connections between slip-rings and windings |
| Total patents | 90 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 7 |
| 2017 | 9 |
| 2018 | 8 |
| 2019 | 6 |
| 2020 | 6 |
| 2021 | 8 |
| 2022 | 8 |
| 2023 | 8 |
| 2024 | 9 |
| 2025 | 11 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Shaft for a slip-ring rotor
US-2022329136-A1 · Oct 13, 2022 · US
Rotor for a rotating electric machine
US-2022255408-A1 · Aug 11, 2022 · US
Rotating electric machine
US-2022200374-A1 · Jun 23, 2022 · US
Rotor and method for producing a rotor
US-11368074-B2 · Jun 21, 2022 · US
Rotor Shaft of an Electric Motor
US-2022131441-A1 · Apr 28, 2022 · US
Electric motor assembly
US-2022131439-A1 · Apr 28, 2022 · US
Assembly for electrically exciting the rotor of an electrical machine, and method for operation
US-2021367487-A1 · Nov 25, 2021 · US
Techniques for high-speed communications through slip rings using modulation and multipath signaling
US-11177619-B2 · Nov 16, 2021 · US
Motor
US-2021305875-A1 · Sep 30, 2021 · US
Bus bar assembly and motor
US-2021305870-A1 · Sep 30, 2021 · US
Motor and mounting method
US-2021305853-A1 · Sep 30, 2021 · US
Shaft for a rotating electrical machine, and rotor and method for producing such a rotor
US-11081939-B2 · Aug 3, 2021 · US
Techniques for high-speed communications through slip rings using modulation and multipath signaling
US-2021126414-A1 · Apr 29, 2021 · US
Rotor of rotating electrical machine and associated fabrication process
US-10923976-B2 · Feb 16, 2021 · US
Rotor and Method for Producing a Rotor
US-2020336050-A1 · Oct 22, 2020 · US
Electrical machine
US-10680499-B2 · Jun 9, 2020 · US
Method for manufacturing a rotor for a slip ring motor, rotor for a slip ring motor and slip ring motor
US-10622871-B2 · Apr 14, 2020 · US
Electric rotating machine and manufacturing method for electric rotating machine
US-10601282-B2 · Mar 24, 2020 · US
Rotor of an electric machine, in particular of a claw pole machine
US-2020044520-A1 · Feb 6, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02K13/02?
- CPC H02K13/02 is the Cooperative Patent Classification code for “Connections between slip-rings and windings.”
- How many patents are filed under CPC H02K13/02 (Connections between slip-rings and windings)?
- Our database includes 90 publications tagged with this CPC code.
- Is patent activity under CPC H02K13/02 growing?
- Publication counts under this code: 9 in 2024 vs 11 in 2025 (latest complete years).