Brush holder assembly and method
US-11502469-B2 · Nov 15, 2022 · US
enabling brush movement within holder during current collection
enabling brush movement within holder during current collection · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01R39/40 |
| Official title | enabling brush movement within holder during current collection |
| Display label | enabling brush movement within holder during current collection |
| Total patents | 64 |
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 | 12 |
| 2016 | 14 |
| 2017 | 7 |
| 2018 | 9 |
| 2019 | 5 |
| 2020 | 3 |
| 2021 | 6 |
| 2022 | 4 |
| 2023 | 3 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Predictive brush control for separately excited electric motors
US-2022311198-A1 · Sep 29, 2022 · US
Motor and rotating device
US-2022109343-A1 · Apr 7, 2022 · US
Motor and brush housing part
US-2022014070-A1 · Jan 13, 2022 · US
Brush assembly
US-11187209-B2 · Nov 30, 2021 · US
DC motor brush holder assembly
US-11183806-B2 · Nov 23, 2021 · US
Brush assembly
US-11158988-B2 · Oct 26, 2021 · US
Holding device for a slip ring unit, slip ring bridge, slip ring unit, electric machine, and wind turbine
US-2021167670-A1 · Jun 3, 2021 · US
Brush holder assembly and method
US-2021126415-A1 · Apr 29, 2021 · US
Brush assembly
US-2021013688-A1 · Jan 14, 2021 · US
Dc motor brush holder assembly
US-2020366041-A1 · Nov 19, 2020 · US
Brush assembly
US-2020182226-A1 · Jun 11, 2020 · US
Brush holder apparatus having brush wear indicator
US-10658806-B2 · May 19, 2020 · US
Probe holding table and medical device
US-10512447-B2 · Dec 24, 2019 · US
Motor and manufacturing method of movement restricting structure
US-10411567-B2 · Sep 10, 2019 · US
Electric motor
US-10404129-B2 · Sep 3, 2019 · US
Method and test tool for adjusting brush holders in slip ring systems
US-10236741-B2 · Mar 19, 2019 · US
Brush holder apparatus, brush assembly, and method
US-10199790-B2 · Feb 5, 2019 · US
Brush holder apparatus and brush spring having friction enhancing material
US-10158206-B2 · Dec 18, 2018 · US
Brush holder apparatus and brush spring having friction enhancing material
US-2018301860-A1 · Oct 18, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01R39/40?
- CPC H01R39/40 is the Cooperative Patent Classification code for “enabling brush movement within holder during current collection.”
- How many patents are filed under CPC H01R39/40 (enabling brush movement within holder during current collection)?
- Our database includes 64 publications tagged with this CPC code.
- Is patent activity under CPC H01R39/40 growing?
- Publication counts under this code: 3 in 2023 vs 1 in 2024 (latest complete years).