H01R 39/18
Contacts for co-operation with commutator or slip-ring
Official title: Contacts for co-operation with commutator or slip-ring, e.g. contact brush
H01R39/18 (Contacts for co-operation with commutator or slip-ring) appears on 437 US grants and 388 published applications in this corpus.
Search patents in H01R- Granted patents
- 437
- Published applications
- 388
- Assignees
- 272
- Inventors
- 898
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 6 | 0 |
| 1980 | 6 | 0 |
| 1981 | 6 | 0 |
| 1982 | 9 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 8 | 0 |
| 1996 | 3 | 0 |
| 1997 | 6 | 0 |
| 1998 | 8 | 0 |
| 1999 | 5 | 0 |
| 2000 | 9 | 0 |
| 2001 | 10 | 4 |
| 2002 | 5 | 13 |
| 2003 | 10 | 17 |
| 2004 | 15 | 15 |
| 2005 | 18 | 20 |
| 2006 | 16 | 15 |
| 2007 | 11 | 14 |
| 2008 | 6 | 17 |
| 2009 | 16 | 13 |
| 2010 | 9 | 8 |
| 2011 | 7 | 6 |
| 2012 | 2 | 10 |
| 2013 | 7 | 11 |
| 2014 | 4 | 16 |
| 2015 | 7 | 19 |
| 2016 | 19 | 10 |
| 2017 | 9 | 20 |
| 2018 | 15 | 22 |
| 2019 | 23 | 21 |
| 2020 | 22 | 19 |
| 2021 | 19 | 16 |
| 2022 | 20 | 15 |
| 2023 | 12 | 12 |
| 2024 | 9 | 18 |
| 2025 | 14 | 22 |
| 2026 | 10 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Grounding brush and associated assembly6 Oct 2026US 12,756,278 B2Aktiebolaget Skf
- Grounding brush and associated assembly1 Sep 2026US 12,726,071 B2Aktiebolaget Skf
- Internally shunting grounding brush assembly with axially-extending conductive fibers1 Sep 2026US 12,726,088 B2Aktiebolaget Skf
- Internally shunting grounding brush assembly with axial brushes and centering bearings28 Jul 2026US 12,695,363 B2Aktiebolaget Skf
- Contact structure and brush motor16 Jun 2026US 12,658,772 B2Mabuchi Motor Co., Ltd.
- 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
- Rotary electrical contact assembly17 Sep 2026US 2026/0280212 A1MERSEN Osterreich Hittisau Ges.m.b.H
- Rotary connector27 Aug 2026US 2026/0254183 A1Eagle Industry Co., Ltd.
- 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
Most cited
By later US patents
- Surgical shaft assemblies with watertight housings918US 10,211,586 B2Ethicon, Inc. · 2019
- Surgical shaft assemblies with slip ring assemblies with increased contact pressure584US 10,716,614 B2Ethicon, Inc. · 2020
- Surgical shaft assemblies with flexible interfaces96US 11,564,686 B2Cilag GmbH International · 2023
- Versatile electrical fiber brush and method of making61US 4,358,699 AThe University of Virginia Alumni Patents Foundation · 1982
- Slip ring, support mechanism, and plasma processing apparatus47US 10,665,434 B2Tokyo Electron Limited · 2020