H02K 5/20
With channels or ducts for flow of cooling medium
Official title: with channels or ducts for flow of cooling medium
H02K5/20 (With channels or ducts for flow of cooling medium) appears on 2,487 US grants and 3,334 published applications in this corpus.
Search patents in H02K- Granted patents
- 2,487
- Published applications
- 3,334
- Assignees
- 1,023
- Inventors
- 6,497
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 7 | 0 |
| 1990 | 4 | 0 |
| 1991 | 5 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 5 | 0 |
| 1996 | 8 | 0 |
| 1997 | 17 | 0 |
| 1998 | 21 | 0 |
| 1999 | 27 | 0 |
| 2000 | 25 | 0 |
| 2001 | 26 | 10 |
| 2002 | 20 | 21 |
| 2003 | 12 | 25 |
| 2004 | 28 | 48 |
| 2005 | 27 | 38 |
| 2006 | 35 | 32 |
| 2007 | 19 | 32 |
| 2008 | 21 | 43 |
| 2009 | 19 | 49 |
| 2010 | 32 | 58 |
| 2011 | 35 | 59 |
| 2012 | 39 | 92 |
| 2013 | 62 | 96 |
| 2014 | 55 | 110 |
| 2015 | 61 | 97 |
| 2016 | 68 | 115 |
| 2017 | 66 | 149 |
| 2018 | 88 | 144 |
| 2019 | 149 | 228 |
| 2020 | 182 | 215 |
| 2021 | 145 | 249 |
| 2022 | 184 | 325 |
| 2023 | 210 | 337 |
| 2024 | 286 | 300 |
| 2025 | 302 | 280 |
| 2026 | 168 | 182 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electric rotating machine and method and vehicle comprising electric machine6 Oct 2026US 12,756,253 B2Traton AB
- Pressure equalization device for an electric machine, housing, electric machine and motor vehicle6 Oct 2026US 12,756,262 B2Bayerische Motoren Werke Aktiengesellschaft
- Omnidirectional cooling guide6 Oct 2026US 12,756,263 B2Hyundai Mobis Co., Ltd.
- Electrical work apparatus29 Sep 2026US 12,746,708 B2Andreas Stihl AG & CO.KG
- 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.
- Rotary electric machine8 Oct 2026US 2026/0312442 A1Denso Corporation
- Electric motor8 Oct 2026US 2026/0312458 A1Hino Motors, Ltd.
- Electric motor with cooling system8 Oct 2026US 2026/0312465 A1Sonceboz Motion Boncourt SA
- Rotor, separately excited synchronous machine and motor vehicle8 Oct 2026US 2026/0312469 A1
- Systems and methods for rotor assemblies and manufacturing thereof1 Oct 2026US 2026/0296634 A1Archer Aviation Inc.
Most cited
By later US patents
- Instrument drive units235US 10,736,219 B2Covidien LP · 2020
- Liquid cooled electric motor frame214US 5,859,482 AGeneral Electric Company · 1999
- Motor-driven fan, particularly for a motor vehicle heat exchanger163US 6,384,494 B1Gate S.R.L. · 2002
- Integrated electric drive unit including an electric motor and an electronic control and monitoring module132US 6,198,183 B1DaimlerChrysler AG · 2001
- Alternator for an automotive vehicle130US 5,998,903 ADenso Corporation · 1999