H02K 7/003
Couplings
Official title: {Couplings; Details of shafts (means for mounting rotors on shafts H02K1/28)}
H02K7/003 (Couplings) appears on 1,470 US grants and 2,035 published applications in this corpus.
Search patents in H02K- Granted patents
- 1,470
- Published applications
- 2,035
- Assignees
- 826
- Inventors
- 4,319
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 3 |
| 2003 | 1 | 11 |
| 2004 | 8 | 20 |
| 2005 | 9 | 18 |
| 2006 | 8 | 20 |
| 2007 | 7 | 16 |
| 2008 | 10 | 16 |
| 2009 | 6 | 17 |
| 2010 | 14 | 20 |
| 2011 | 13 | 18 |
| 2012 | 16 | 24 |
| 2013 | 16 | 41 |
| 2014 | 24 | 36 |
| 2015 | 24 | 48 |
| 2016 | 26 | 72 |
| 2017 | 51 | 87 |
| 2018 | 57 | 99 |
| 2019 | 104 | 167 |
| 2020 | 113 | 148 |
| 2021 | 141 | 172 |
| 2022 | 134 | 247 |
| 2023 | 176 | 224 |
| 2024 | 192 | 212 |
| 2025 | 175 | 149 |
| 2026 | 105 | 150 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Aluminum alloy with high electrical conductivity and elevated temperature strength for use in electric vehicle motors6 Oct 2026US 12,756,245 B2Ford Global Technologies, LLC
- Barrier coating for an electric motor rotor assembly6 Oct 2026US 12,756,281 B2BorgWarner Inc.
- Electric propulsion device with hollow shaft and cooling blades and support body with heat member on outer surface29 Sep 2026US 12,747,029 B2Mitsubishi Heavy Industries, Ltd.
- Mating powder metal gear to shaft29 Sep 2026US 12,747,781 B1Schaeffler Technologies AG & Co. KG
- Rotor for an externally excited synchronous machine29 Sep 2026US 12,749,951 B2Mahle International GmbH
- Methods of generating electric power and a distributed network of a generator-turbine apparatus having a set of electric generators simultaneously driven by a gravity-force applied and moment imbalanced turbine8 Oct 2026US 2026/0309131 A1
- Motor8 Oct 2026US 2026/0312459 A1LG Innotek Co., Ltd.
- Gas turbine generator1 Oct 2026US 2026/0298104 A1Honda Motor Co., Ltd.
- Oil vacuum shaft1 Oct 2026US 2026/0302872 A1Schaeffler Technologies AG & Co. KG
- Rotor Shaft for a Machine, Connection Tube for a Rotor Shaft, and Machine Having Same1 Oct 2026US 2026/0302878 A1Bayerische Motoren Werke Aktiengesellschaft
Most cited
By later US patents
- Elastic actuator for precise force control232US 5,650,704 AMassachusetts Institute of Technology · 1997
- Hybrid drive system wherein planetary gear mechanism is disposed radially inwardly of stator coil of motor/generator107US 6,155,364 AToyota Jidosha Kabushiki Kaisha · 2000
- Cross-shaped torsional spring80US 5,910,720 AMassachusetts Institute of Technology · 1999
- Magneto electric generator rotor and an implement for removing this rotor50US 5,811,908 AOppama Industry Co., Ltd. · 1998
- Power generation from vehicle wheel rotation46US 11,289,974 B22022