H02K 5/141
For cooperation with slip-rings
Official title: {for cooperation with slip-rings}
H02K5/141 (For cooperation with slip-rings) appears on 202 US grants and 158 published applications in this corpus.
Search patents in H02K- Granted patents
- 202
- Published applications
- 158
- Assignees
- 83
- Inventors
- 369
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 0 | 0 |
| 1987 | 5 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 6 | 0 |
| 1998 | 7 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 9 | 3 |
| 2002 | 6 | 13 |
| 2003 | 8 | 7 |
| 2004 | 8 | 5 |
| 2005 | 7 | 8 |
| 2006 | 7 | 6 |
| 2007 | 3 | 10 |
| 2008 | 7 | 10 |
| 2009 | 8 | 6 |
| 2010 | 9 | 4 |
| 2011 | 4 | 6 |
| 2012 | 5 | 3 |
| 2013 | 4 | 6 |
| 2014 | 1 | 7 |
| 2015 | 2 | 12 |
| 2016 | 11 | 3 |
| 2017 | 9 | 5 |
| 2018 | 2 | 9 |
| 2019 | 6 | 3 |
| 2020 | 5 | 6 |
| 2021 | 4 | 6 |
| 2022 | 4 | 4 |
| 2023 | 4 | 4 |
| 2024 | 4 | 3 |
| 2025 | 3 | 5 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Rotating electric machine1 Jul 2025US 12,348,105 B2Nissan Motor Co., Ltd.
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- Electric drive system with brush polarity flip control20 Aug 2026US 2026/0246407 A1GM Global Technology Operations LLC
- Axial slip ring assembly for an electric motor13 Aug 2026US 2026/0238095 A1GM Global Technology Operations LLC
- Insulating Disc and Method for Insulating the Brush Area of an Electric Machine2 Jul 2026US 2026/0189111 A1Bayerische Motoren Werke Aktiengesellschaft
- Alternator system30 Oct 2025US 2025/0337296 A1
Most cited
By later US patents
- Brush holder apparatus, brush assembly, and method63US 7,034,430 B2Cutsforth Products, Inc. · 2006
- Brush holding apparatus for rotary electric machine56US 4,296,346 AHitachi Chemical Company, Ltd. · 1981
- Alternator with unitary brush-holder and bearing hub45US 4,546,280 ARobert Bosch GmbH · 1985
- Brush holder apparatus, brush assembly, and method45US 7,122,935 B2Cutsforth Products, Inc. · 2006
- Fastening means for contacting DC-output terminal with cooling fin in AC generator42US 5,977,669 ADenso Corporation · 1999