H02K 23/28
Having open windings, i.e. not closed within the armatures
Official title: having open windings, i.e. not closed within the armatures
H02K23/28 (Having open windings, i.e. not closed within the armatures) appears on 27 US grants and 19 published applications in this corpus.
Search patents in H02K- Granted patents
- 27
- Published applications
- 19
- Assignees
- 16
- Inventors
- 56
- Latest grant
- 22 Aug 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 3 |
| 2005 | 2 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 3 |
| 2010 | 3 | 1 |
| 2011 | 0 | 2 |
| 2012 | 2 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 2 |
| 2017 | 2 | 2 |
| 2018 | 1 | 0 |
| 2019 | 2 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 0 |
| 2022 | 1 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Electric motor, generator and commutator system, device and method22 Aug 2023US 11,735,971 B1Turboroto, Inc.
- Electric motor, generator and commutator system, device and method30 Aug 2022US 11,431,216 B1Turboroto, Inc.
- Brushless motor-generator having a spherical stator and spherical windings with displaced poles31 Aug 2021US 11,108,311 B2
- Method for manufacturing a brush-commutated direct-current motor11 Jun 2019US 10,320,273 B2Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Wuerzburg
- Direct current motor1 Jan 2019US 10,170,954 B2Hitachi Automotive Systems, Ltd.
- Brushless motor generator15 Oct 2020US 2020/0328663 A1
- Brush-commutated direct-current motor3 Aug 2017US 2017/0222509 A1Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Wuerzburg
- Method for producing a brush-commutated direct-current motor3 Aug 2017US 2017/0222529 A1Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Wuerzburg
- Direct Current Motor1 Dec 2016US 2016/0352171 A1Hitachi Automotive Systems, Ltd.
- Electric motor, generator and commutator system, device and method7 Jan 2016US 2016/0006311 A1Turboroto, Inc.
Most cited
By later US patents
- Current generator21US 4,388,547 A1983
- Electric motor19US 5,202,599 A1993
- Motor for an electric power steering assembly16US 6,127,759 AMitsubishi Denki Kabushiki Kaisha · 2000
- Motor13US 6,756,717 B2ASMO Co.LTD · 2004
- Armature of rotary electric machine and manufacturing method thereof13US 7,619,344 B2Mitsuba Corporation · 2009