H02K 13/02
Connections between slip-rings and windings
H02K13/02 (Connections between slip-rings and windings) appears on 96 US grants and 76 published applications in this corpus.
Search patents in H02K- Granted patents
- 96
- Published applications
- 76
- Assignees
- 55
- Inventors
- 242
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 4 | 1 |
| 2002 | 3 | 3 |
| 2003 | 0 | 3 |
| 2004 | 1 | 3 |
| 2005 | 3 | 1 |
| 2006 | 2 | 1 |
| 2007 | 1 | 3 |
| 2008 | 1 | 2 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 2 |
| 2013 | 1 | 3 |
| 2014 | 0 | 3 |
| 2015 | 3 | 6 |
| 2016 | 1 | 5 |
| 2017 | 4 | 7 |
| 2018 | 3 | 4 |
| 2019 | 5 | 1 |
| 2020 | 5 | 3 |
| 2021 | 4 | 2 |
| 2022 | 3 | 4 |
| 2023 | 1 | 4 |
| 2024 | 2 | 5 |
| 2025 | 6 | 6 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Rotor comprising a two-part bearing seat30 Jun 2026US 12,671,281 B2Bayerische Motoren Werke Aktiengesellschaft
- Electric machine with disconnectable brush module, the brush module, and a motor vehicle21 Apr 2026US 12,609,593 B2Audi AG
- Synchronous electrical machine and boat comprising such a machine23 Dec 2025US 12,506,391 B2GE Energy Power Conversion Technology Limited
- Shaft embedded brush power transfer for separately excited machine power25 Nov 2025US 12,483,100 B2GM Global Technology Operations LLC
- Rotor and method for producing a rotor23 Sep 2025US 12,424,886 B2Bayerische Motoren Werke Aktiengesellschaft
- Axial slip ring assembly for an electric motor13 Aug 2026US 2026/0238095 A1GM Global Technology Operations LLC
- Rotor and method of manufacturing the same30 Apr 2026US 2026/0121465 A1Toyota Jidosha Kabushiki Kaisha
- Motor16 Apr 2026US 2026/0106504 A1Aisin Corporation
- Rotor11 Sep 2025US 2025/0286444 A1Toyota Jidosha Kabushiki Kaisha
- Connection Device for Rotating Subassembly of a Motor Vehicle and Rotating Subassembly24 Jul 2025US 2025/0239807 A1Bayerische Motoren Werke Aktiengesellschaft
Most cited
By later US patents
- Flexible conductor and dynamoelectric machine incorporating the same41US 4,870,308 AWestinghouse Electric Corp. · 1989
- Molded rotor assembly for an alternator and method for making the same40US 5,325,003 AFord Motor Company · 1994
- Slip ring brush assembly and method40US 6,281,610 B1General Electric Company · 2001
- Speed control in self-powered eddy current drive37US 5,821,658 A1998
- Fan and slip ring assembly33US 5,625,244 AGeneral Motors Corporation · 1997