H02K 9/10
Arrangements for cooling or ventilating: by gaseous cooling medium flowing in closed
Official title: by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing
H02K9/10 (Arrangements for cooling or ventilating: by gaseous cooling medium flowing in closed) appears on 391 US grants and 440 published applications in this corpus.
Search patents in H02K- Granted patents
- 391
- Published applications
- 440
- Assignees
- 219
- Inventors
- 1,095
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 5 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 5 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 8 | 0 |
| 2002 | 9 | 7 |
| 2003 | 5 | 5 |
| 2004 | 7 | 15 |
| 2005 | 5 | 8 |
| 2006 | 5 | 5 |
| 2007 | 8 | 3 |
| 2008 | 3 | 12 |
| 2009 | 3 | 5 |
| 2010 | 8 | 14 |
| 2011 | 5 | 7 |
| 2012 | 9 | 18 |
| 2013 | 13 | 15 |
| 2014 | 13 | 19 |
| 2015 | 7 | 27 |
| 2016 | 17 | 21 |
| 2017 | 14 | 35 |
| 2018 | 26 | 32 |
| 2019 | 34 | 26 |
| 2020 | 22 | 20 |
| 2021 | 19 | 25 |
| 2022 | 17 | 35 |
| 2023 | 16 | 18 |
| 2024 | 38 | 26 |
| 2025 | 17 | 23 |
| 2026 | 17 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Rotating electric machine system with partition member to seal stator from rotor1 Sep 2026US 12,726,084 B2Honda Motor Co., Ltd.
- Integrated dust extractor and power tool11 Aug 2026US 12,703,053 B2Milwaukee Electric Tool Corporation
- E-machine system with multi-function support bracket for electrical component11 Aug 2026US 12,706,504 B2Garrett Transportation I Inc.
- Magnetic levitation motor sealing-cooling apparatus for refrigeration system and method therefor11 Aug 2026US 12,706,510 B2Shanghai Marine Diesel Engine Research Institute
- Rotating electric machine system with partition member to seal stator from rotor28 Jul 2026US 12,695,360 B2Honda Motor Co., Ltd.
- High speed electrical machine1 Oct 2026US 2026/0302870 A1Celeroton Turbocell AG
- Electric machine with integrated cooling and device with electric machine24 Sep 2026US 2026/0291335 A1
- Method for manufacturing rotary electric machine10 Sep 2026US 2026/0269696 A1Mitsubishi Generator Co., Ltd.
- Electromechanical device6 Aug 2026US 2026/0229956 A1
- Sheet metal assembly forming a motor rotor and/or stator6 Aug 2026US 2026/0229959 A1ALSTOM Holdings
Most cited
By later US patents
- Compact high power alternator100US 7,122,923 B2Magnetic Applications, Inc. · 2006
- System and apparatus for modular axial field rotary energy device50US 10,135,310 B2Infinitum Electric Inc. · 2018
- Pressurized air-gap guided active linear motor suspension system50US 5,668,421 AE. B. Eddy Forest Products, Ltd. · 1997
- Wind power installation with separate primary and secondary cooling circuits50US 7,057,305 B2Siemens Aktiengasellschaft · 2006
- Wind power installation with separate primary and secondary cooling circuits43US 7,161,260 B2Siemens Aktiengesellschaft · 2007