H01R 39/381
Characterised by the application of pressure to brush
Official title: {characterised by the application of pressure to brush}
H01R39/381 (Characterised by the application of pressure to brush) appears on 193 US grants and 182 published applications in this corpus.
Search patents in H01R- Granted patents
- 193
- Published applications
- 182
- Assignees
- 115
- Inventors
- 352
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 5 | 0 |
| 1998 | 3 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 4 |
| 2004 | 5 | 5 |
| 2005 | 4 | 9 |
| 2006 | 8 | 8 |
| 2007 | 7 | 13 |
| 2008 | 9 | 13 |
| 2009 | 7 | 7 |
| 2010 | 9 | 5 |
| 2011 | 6 | 6 |
| 2012 | 2 | 4 |
| 2013 | 2 | 5 |
| 2014 | 2 | 4 |
| 2015 | 4 | 20 |
| 2016 | 11 | 8 |
| 2017 | 9 | 9 |
| 2018 | 14 | 12 |
| 2019 | 7 | 9 |
| 2020 | 10 | 9 |
| 2021 | 9 | 6 |
| 2022 | 8 | 8 |
| 2023 | 6 | 4 |
| 2024 | 6 | 6 |
| 2025 | 5 | 5 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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
- Brush wear indicator5 Aug 2025US 12,381,365 B2Alexsava Holdings Limited
- Grounding brush assembly17 Jun 2025US 12,334,782 B2ABB Schweiz AG
- Externally excited electric machine17 Jun 2025US 12,334,794 B2Audi AG
- Current transfer device for a rotor of an electric machine23 Jul 2026US 2026/0213482 A1Schaeffler Technologies AG & Co. KG
- Brush unit and connection device19 Mar 2026US 2026/0081394 A1Nsk Ltd.
- Diverting device for diverting electrical currents, and machine comprising a diverting device of this type11 Dec 2025US 2025/0379408 A1
- Electric motor11 Dec 2025US 2025/0379498 A1Panasonic Intellectual Property Management Co., Ltd.
- Electric motor25 Sep 2025US 2025/0300517 A1Panasonic Intellectual Property Management Co., Ltd.
Most cited
By later US patents
- Brush holder apparatus, brush assembly, and method63US 7,034,430 B2Cutsforth Products, Inc. · 2006
- Brush system for electric motors52US 6,133,665 AS-B Power Tool Company · 2000
- Permanent magnet direct current motor49US 5,949,173 AGeneral Electric Company · 1999
- Slip ring, support mechanism, and plasma processing apparatus47US 10,665,434 B2Tokyo Electron Limited · 2020
- Brush holder apparatus, brush assembly, and method45US 7,122,935 B2Cutsforth Products, Inc. · 2006