H02K 23/405
Machines with a special form of the pole shoes
Official title: {Machines with a special form of the pole shoes}
H02K23/405 (Machines with a special form of the pole shoes) appears on 21 US grants and 17 published applications in this corpus.
Search patents in H02K- Granted patents
- 21
- Published applications
- 17
- Assignees
- 14
- Inventors
- 49
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 3 |
| 2019 | 0 | 2 |
| 2020 | 3 | 1 |
| 2021 | 3 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 1 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
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- Direct-current electric motor and use thereof as a drive of a liftgate11 Jan 2024US 2024/0014723 A1Stabilus GmbH
- Electric motor, drive assembly and electromechanical brake device18 May 2023US 2023/0155468 A1ZF Active Safety GmbH
- Brush motor3 Nov 2022US 2022/0352791 A1Mabuchi Motor Co., Ltd.
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Most cited
By later US patents
- Multiple magnetic pole DC motors22US 5,283,492 A1994
- Motor with salient pole having extending magnetic flux collecting plate14US 5,949,172 AKabushiki Kaisha Sankyo Seiki Seisakusho · 1999
- Direct-current motor with improved branched tooth arrangement12US 8,350,437 B2ASMO Co.LTD · 2013
- Electric motor11US 7,362,031 B2Mitsuba Corporation · 2008
- Small-sized motor10US 6,316,850 B1Mabuchi Motor Co., Ltd. · 2001