Brush arrangement
US-11378064-B2 · Jul 5, 2022 · US
Solid sliding contacts, e.g. carbon brush
Solid sliding contacts, e.g. carbon brush · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01R39/26 |
| Official title | Solid sliding contacts, e.g. carbon brush |
| Display label | Solid sliding contacts, e.g. carbon brush |
| Total patents | 75 |
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 | 7 |
| 2016 | 3 |
| 2017 | 5 |
| 2018 | 8 |
| 2019 | 9 |
| 2020 | 15 |
| 2021 | 9 |
| 2022 | 9 |
| 2023 | 4 |
| 2024 | 3 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electric motor having a commutator and brush for the electric motor
US-2022158397-A1 · May 19, 2022 · US
DC motor
US-11303082-B2 · Apr 12, 2022 · US
Drive device, hydraulic pump, motor vehicle
US-11283324-B2 · Mar 22, 2022 · US
System and method for monitoring the status of one or more components of an electrical machine
US-11211757-B2 · Dec 28, 2021 · US
Brush device for electrically connecting a first element to a second element, e-machine and drive device
US-2021391680-A1 · Dec 16, 2021 · US
Electric motor, in particular a separately excited synchronous motor
US-2021376683-A1 · Dec 2, 2021 · US
Brush assembly
US-11187209-B2 · Nov 30, 2021 · US
Motor
US-11128203-B2 · Sep 21, 2021 · US
Contact-type power supply apparatus and contact unit
US-2021242647-A1 · Aug 5, 2021 · US
Slip ring unit with cooling fan insulating segment
US-11043877-B2 · Jun 22, 2021 · US
Resin bonded carbonaceous brush and method of manufacturing the same
US-10903613-B2 · Jan 26, 2021 · US
DC motor for starter
US-10886682-B2 · Jan 5, 2021 · US
Dc motor
US-2020313376-A1 · Oct 1, 2020 · US
Brush assembly, motor and liquid pump
US-10777957-B2 · Sep 15, 2020 · US
Conductive slip ring for logging while drilling instrument
US-10693268-B2 · Jun 23, 2020 · US
Brush assembly
US-2020182226-A1 · Jun 11, 2020 · US
Computed tomography device and method for determining an operating state of sliding contacts in a computed tomography device
US-10653383-B2 · May 19, 2020 · US
Brushed motor
US-10637322-B2 · Apr 28, 2020 · US
Electrical contact device and rotating electric machine including the electrical contact device
US-2020127427-A1 · Apr 23, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01R39/26?
- CPC H01R39/26 is the Cooperative Patent Classification code for “Solid sliding contacts, e.g. carbon brush.”
- How many patents are filed under CPC H01R39/26 (Solid sliding contacts, e.g. carbon brush)?
- Our database includes 75 publications tagged with this CPC code.
- Is patent activity under CPC H01R39/26 growing?
- Publication counts under this code: 3 in 2024 vs 3 in 2025 (latest complete years).