H02P 7/12
Switching field from series to shunt excitation or vice versa
H02P7/12 (Switching field from series to shunt excitation or vice versa) appears on 3 US grants and 2 published applications in this corpus.
Search patents in H02P- Granted patents
- 3
- Published applications
- 2
- Assignees
- 4
- Inventors
- 7
- Latest grant
- 10 May 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Series shunt wound DC motor driving device and equipment10 May 2022US 11,329,582 B2University of Shanghai for Science and Technology
- Commutator motor having a number of field winding groups9 Jun 2009US 7,545,070 B2BSH Bosch und Siemens Hausgeraete GmbH
- Vehicle motor switching apparatus17 Nov 1992US 5,165,006 AFuji Jukogyo Kabushiki Kaisha
Most cited
By later US patents