H02K 2205/09
Machines characterised by drain passages or by venting, breathing or pressure compensating
Official title: Machines characterised by drain passages or by venting, breathing or pressure compensating means
H02K2205/09 (Machines characterised by drain passages or by venting, breathing or pressure compensating) appears on 375 US grants and 415 published applications in this corpus.
Search patents in H02K- Granted patents
- 375
- Published applications
- 415
- Assignees
- 265
- Inventors
- 1,043
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 5 | 0 |
| 1991 | 13 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 6 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 5 | 5 |
| 2003 | 2 | 4 |
| 2004 | 3 | 6 |
| 2005 | 2 | 5 |
| 2006 | 2 | 5 |
| 2007 | 7 | 6 |
| 2008 | 3 | 4 |
| 2009 | 4 | 11 |
| 2010 | 8 | 7 |
| 2011 | 6 | 15 |
| 2012 | 6 | 4 |
| 2013 | 11 | 7 |
| 2014 | 4 | 12 |
| 2015 | 5 | 19 |
| 2016 | 9 | 12 |
| 2017 | 9 | 18 |
| 2018 | 17 | 17 |
| 2019 | 19 | 30 |
| 2020 | 23 | 30 |
| 2021 | 17 | 41 |
| 2022 | 33 | 41 |
| 2023 | 28 | 33 |
| 2024 | 40 | 32 |
| 2025 | 34 | 30 |
| 2026 | 12 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pressure equalization device for an electric machine, housing, electric machine and motor vehicle6 Oct 2026US 12,756,262 B2Bayerische Motoren Werke Aktiengesellschaft
- Rotor module with cooling structure4 Aug 2026US 12,700,773 B2Hyundai Mobis Co., Ltd.
- Casing for a drive unit, comprising an exhaust ventilation interface, and drive unit23 Jun 2026US 12,663,066 B2Schaeffler Technologies AG & Co. KG
- Electric motor cooling systems and methods9 Jun 2026US 12,649,574 B2FLIR Unmanned Aerial Systems ULC
- Vehicle drive device26 May 2026US 12,638,072 B2Aisin Corporation
- Fan assembly for an electric motor and electric motor comprising such a fan assembly1 Oct 2026US 2026/0302888 A1ALSTOM Holdings
- Motor unit and electric working machine24 Sep 2026US 2026/0291347 A1Makita Corporation
- Drive housing for an electric bicycle having a rib structure that forms a ventilation assembly and/or cooling air channels3 Sep 2026US 2026/0261177 A1Brose Antriebstechnik GmbH & Co. Kommanditgesellschaft, Berlin
- Actuator for motor vehicle applications3 Sep 2026US 2026/0261178 A1Kiekert AG
- Vehicle drive device27 Aug 2026US 2026/0251211 A1Aisin Corporation
Most cited
By later US patents
- Blower with bearing tube333US 8,636,479 B2ResMed Motor Technologies Inc. · 2014
- Instrument drive units235US 10,736,219 B2Covidien LP · 2020
- Gas-permeable, liquid-impermeable vent cover122US 5,522,769 AW. L. Gore & Associates, Inc. · 1996
- Molded resin motor housing84US 5,268,607 AWebster Plastics · 1993
- Housing with a pressure-equalizing element which is retained water-tightly around the edges within a housing wall opening76US 5,215,312 ASiemens Aktiengesellschaft · 1993