Slip ring apparatus, yaw system, and wind turbine generator set
US-12431680-B2 · Sep 30, 2025 · US
Conductive materials
Conductive materials · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01R39/025 |
| Official title | {Conductive materials} |
| Display label | Conductive materials |
| Total patents | 30 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 1 |
| 2017 | 2 |
| 2019 | 8 |
| 2020 | 4 |
| 2021 | 2 |
| 2022 | 5 |
| 2023 | 2 |
| 2024 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Arrangement for producing an electrically conductive connection between a first machine element and a second machine element
US-12334669-B2 · Jun 17, 2025 · US
Shaft Grounding Ring and Method for Production Thereof
US-2024223051-A1 · Jul 4, 2024 · US
Slip ring apparatus, yaw system, and wind turbine generator set
US-2024072503-A1 · Feb 29, 2024 · US
Contact ring for highly dynamic applications
US-11677202-B2 · Jun 13, 2023 · US
Electrical contact device and rotating electric machine including the electrical contact device
US-11670901-B2 · Jun 6, 2023 · US
Arrangement for producing an electrically conductive connection between a first machine element and a second machine element
US-2022384986-A1 · Dec 1, 2022 · US
Slip ring body
US-11437771-B2 · Sep 6, 2022 · US
Contact Ring for Highly Dynamic Applications
US-2022158398-A1 · May 19, 2022 · US
DC motor
US-11303082-B2 · Apr 12, 2022 · US
Slip ring body
US-2022094126-A1 · Mar 24, 2022 · US
Superconducting devices, such as slip-rings and homopolar motors/generators
US-10965077-B2 · Mar 30, 2021 · US
DC motor for starter
US-10886682-B2 · Jan 5, 2021 · US
Starter, and formation of graphite cover layer for commutator surface
US-10855149-B2 · Dec 1, 2020 · US
Dc motor
US-2020313376-A1 · Oct 1, 2020 · US
Superconducting devices, such as slip-rings and homopolar motors/generators
US-2020144778-A1 · May 7, 2020 · US
Electrical contact device and rotating electric machine including the electrical contact device
US-2020127427-A1 · Apr 23, 2020 · US
Dc motor for starter
US-2019393662-A1 · Dec 26, 2019 · US
Superconducting devices, such as slip-rings and homopolar motors/generators
US-10446995-B2 · Oct 15, 2019 · US
Starter, and formation of graphite cover layer for commutator surface
US-2019305652-A1 · Oct 3, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01R39/025?
- CPC H01R39/025 is the Cooperative Patent Classification code for “Conductive materials.”
- How many patents are filed under CPC H01R39/025 (Conductive materials)?
- Our database includes 30 publications tagged with this CPC code.
- Is patent activity under CPC H01R39/025 growing?
- Publication counts under this code: 2 in 2024 vs 2 in 2025 (latest complete years).