H02K 13/003
Structural associations of slip-rings
Official title: {Structural associations of slip-rings}
H02K13/003 (Structural associations of slip-rings) appears on 242 US grants and 271 published applications in this corpus.
Search patents in H02K- Granted patents
- 242
- Published applications
- 271
- Assignees
- 153
- Inventors
- 620
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 5 | 0 |
| 1998 | 6 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 2 |
| 2002 | 6 | 4 |
| 2003 | 2 | 8 |
| 2004 | 4 | 1 |
| 2005 | 1 | 4 |
| 2006 | 7 | 6 |
| 2007 | 5 | 7 |
| 2008 | 2 | 3 |
| 2009 | 2 | 4 |
| 2010 | 4 | 7 |
| 2011 | 6 | 7 |
| 2012 | 6 | 3 |
| 2013 | 5 | 10 |
| 2014 | 1 | 9 |
| 2015 | 7 | 17 |
| 2016 | 12 | 12 |
| 2017 | 12 | 13 |
| 2018 | 12 | 21 |
| 2019 | 14 | 15 |
| 2020 | 14 | 16 |
| 2021 | 18 | 17 |
| 2022 | 18 | 19 |
| 2023 | 13 | 12 |
| 2024 | 14 | 13 |
| 2025 | 12 | 23 |
| 2026 | 9 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for rotor shaft grounding11 Aug 2026US 12,706,512 B2Ford Global Technologies, LLC
- Slip ring device for motor28 Jul 2026US 12,695,364 B2Hyundai Mobis Co., Ltd.
- Rotor comprising a two-part bearing seat30 Jun 2026US 12,671,281 B2Bayerische Motoren Werke Aktiengesellschaft
- Axial brush assembly for electric machine28 Apr 2026US 12,614,947 B2GM Global Technology Operations LLC
- Electric machine with disconnectable brush module, the brush module, and a motor vehicle21 Apr 2026US 12,609,593 B2Audi AG
- Drive axle for an electric vehicle24 Sep 2026US 2026/0291338 A1ZF Friedrichshafen AG
- Rotor Having a DC-To-DC Converter for an Electric Machine24 Sep 2026US 2026/0291344 A1Bayerische Motoren Werke Aktiengesellschaft
- Rolling brush for electric motor17 Sep 2026US 2026/0280210 A1Schaeffler Technologies AG & Co. KG
- Drive unit and electric vehicle3 Sep 2026US 2026/0257759 A1Panasonic Intellectual Property Management Co., Ltd.
- Drive unit for a motor vehicle, in particular for a car, and motor vehicle27 Aug 2026US 2026/0254311 A1Bayerische Motoren Werke Aktiengesellschaft
Most cited
By later US patents
- Direct drive wind turbine70US 7,075,192 B2Northern Power Systems, Inc. · 2006
- Brush holder apparatus, brush assembly, and method63US 7,034,430 B2Cutsforth Products, Inc. · 2006
- Direct drive wind turbine53US 7,109,600 B1Northern Power Systems, Inc. · 2006
- Direct drive wind turbine52US 7,183,665 B2Northern Power Systems, Inc. · 2007
- Brush holder apparatus, brush assembly, and method45US 7,122,935 B2Cutsforth Products, Inc. · 2006