H01R 39/26
Solid sliding contacts
Official title: Solid sliding contacts, e.g. carbon brush
H01R39/26 (Solid sliding contacts) appears on 113 US grants and 122 published applications in this corpus.
Search patents in H01R- Granted patents
- 113
- Published applications
- 122
- Assignees
- 96
- Inventors
- 277
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 5 | 1 |
| 2002 | 0 | 4 |
| 2003 | 3 | 2 |
| 2004 | 1 | 5 |
| 2005 | 4 | 4 |
| 2006 | 3 | 3 |
| 2007 | 2 | 2 |
| 2008 | 1 | 5 |
| 2009 | 3 | 9 |
| 2010 | 6 | 3 |
| 2011 | 4 | 1 |
| 2012 | 0 | 4 |
| 2013 | 1 | 3 |
| 2014 | 2 | 3 |
| 2015 | 1 | 9 |
| 2016 | 4 | 4 |
| 2017 | 3 | 6 |
| 2018 | 6 | 6 |
| 2019 | 6 | 6 |
| 2020 | 9 | 12 |
| 2021 | 8 | 6 |
| 2022 | 8 | 6 |
| 2023 | 6 | 5 |
| 2024 | 3 | 4 |
| 2025 | 4 | 5 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Axial brush assembly for electric machine28 Apr 2026US 12,614,947 B2GM Global Technology Operations LLC
- Collection device for collecting electrical currents, and machine comprising a collection device of this kind10 Mar 2026US 12,573,922 B2Schunk Carbon Technology GmbH
- Contacting device for transmitting electric currents, and machines comprising such a contacting device20 Jan 2026US 12,531,460 B2Schunk Carbon Technology GmbH
- Shaft ground ring to prevent bearing electrical erosion2 Dec 2025US 12,489,348 B2Han Jin Trading & Engineering Co., Ltd.
- System and method for monitoring the status of one or more components of an electrical machine16 Sep 2025US 12,418,151 B2Cutsforth, Inc.
- Brush module for supplying current to a rotor of an electric drive machine of a motor vehicle17 Sep 2026US 2026/0280211 A1Schaeffler Technologies AG & Co. KG
- Drive unit for a motor vehicle, in particular for a car, and motor vehicle27 Aug 2026US 2026/0254311 A1Bayerische Motoren Werke Aktiengesellschaft
- Current transfer device for a rotor of an electric machine23 Jul 2026US 2026/0213482 A1Schaeffler Technologies AG & Co. KG
- Embedded conductive device16 Jul 2026US 2026/0204857 A1Wujiang Tianlong Electronic Machinery Equinpment Co., Ltd.
- Discharge device for discharging electric currents, and machine comprising a discharge device of this kind11 Dec 2025US 2025/0379407 A1
Most cited
By later US patents
- Brush holding device31US 4,855,631 AMitsuba Electric Manufacturing Co., Ltd. · 1989
- Multi-speed motor29US 5,485,049 AUnited Technologies Motor Systems, Inc. · 1996
- System for monitoring bearing wear28US 7,551,288 B1Rockwell Automation Technologies, Inc. · 2009
- Electrical brush assembly14US 4,983,873 AMitsubishi Denki Kabushiki Kaisha · 1991
- Commutator brush10US 5,594,290 AUnited Technologies Motor Systems, Inc. · 1997