Grounding brush assembly
US-12556058-B2 · Feb 17, 2026 · US
characterised by the material thereof
characterised by the material thereof · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01R39/20 |
| Official title | characterised by the material thereof |
| Display label | characterised by the material thereof |
| Total patents | 59 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 1 |
| 2017 | 6 |
| 2018 | 1 |
| 2019 | 9 |
| 2020 | 7 |
| 2021 | 6 |
| 2022 | 6 |
| 2023 | 3 |
| 2024 | 9 |
| 2025 | 6 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Grounding brush assembly
US-12512734-B2 · Dec 30, 2025 · US
Direct-current motor
US-12500471-B2 · Dec 16, 2025 · US
Sliding contact material for motor brush, motor brush, and direct current motor
US-2025350080-A1 · Nov 13, 2025 · US
Systems and methods to mitigate electrical voltage on a rotating shaft immersed in oil
US-2025233493-A1 · Jul 17, 2025 · US
Shunt assembly
US-12289021-B2 · Apr 29, 2025 · US
Systems and methods to mitigate electrical voltage on a rotating shaft immersed in oil
US-12231007-B2 · Feb 18, 2025 · US
Discharge device for discharging electrical currents and machine comprising such a discharge device
US-2024339896-A1 · Oct 10, 2024 · US
Grounding ring and arrangement comprising such a grounding ring
US-12107463-B2 · Oct 1, 2024 · US
Systems and methods for threaded fasteners with grounding brush endpoints
US-12095316-B2 · Sep 17, 2024 · US
Detection systems for power tools with active injury mitigation technology
US-2024255101-A1 · Aug 1, 2024 · US
Grounding brush assembly
US-2024128827-A1 · Apr 18, 2024 · US
Grounding brush assembly
US-2024128840-A1 · Apr 18, 2024 · US
Detection systems for power tools with active injury mitigation technology
US-11940095-B2 · Mar 26, 2024 · US
Shunt assembly
US-2024055960-A1 · Feb 15, 2024 · US
Direct-current motor
US-2024055927-A1 · Feb 15, 2024 · US
Contact structure and brush motor
US-2023421029-A1 · Dec 28, 2023 · US
Electrical contact device and rotating electric machine including the electrical contact device
US-11670901-B2 · Jun 6, 2023 · US
Grounding brush assembly with improved electrical conductivity properties
US-2023170658-A1 · Jun 1, 2023 · US
Grounding ring and arrangement comprising such a grounding ring
US-2022247284-A1 · Aug 4, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01R39/20?
- CPC H01R39/20 is the Cooperative Patent Classification code for “characterised by the material thereof.”
- How many patents are filed under CPC H01R39/20 (characterised by the material thereof)?
- Our database includes 59 publications tagged with this CPC code.
- Is patent activity under CPC H01R39/20 growing?
- Publication counts under this code: 9 in 2024 vs 6 in 2025 (latest complete years).