H02P 6/182
Using back-emf in windings
Official title: using back-emf in windings
H02P6/182 (Using back-emf in windings) appears on 1,176 US grants and 1,143 published applications in this corpus.
Search patents in H02P- Granted patents
- 1,176
- Published applications
- 1,143
- Assignees
- 536
- Inventors
- 2,026
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 6 | 0 |
| 1991 | 8 | 0 |
| 1992 | 6 | 0 |
| 1993 | 14 | 0 |
| 1994 | 14 | 0 |
| 1995 | 9 | 0 |
| 1996 | 7 | 0 |
| 1997 | 9 | 0 |
| 1998 | 18 | 0 |
| 1999 | 19 | 0 |
| 2000 | 15 | 0 |
| 2001 | 15 | 4 |
| 2002 | 16 | 17 |
| 2003 | 16 | 18 |
| 2004 | 10 | 24 |
| 2005 | 19 | 24 |
| 2006 | 28 | 33 |
| 2007 | 39 | 40 |
| 2008 | 22 | 43 |
| 2009 | 34 | 41 |
| 2010 | 28 | 38 |
| 2011 | 35 | 42 |
| 2012 | 41 | 41 |
| 2013 | 42 | 53 |
| 2014 | 50 | 94 |
| 2015 | 59 | 62 |
| 2016 | 59 | 55 |
| 2017 | 69 | 61 |
| 2018 | 63 | 63 |
| 2019 | 62 | 63 |
| 2020 | 56 | 66 |
| 2021 | 50 | 47 |
| 2022 | 66 | 45 |
| 2023 | 42 | 59 |
| 2024 | 45 | 50 |
| 2025 | 50 | 40 |
| 2026 | 20 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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- A method for detecting a state of stall in a rotating stepping motor13 Aug 2026US 2026/0232925 A1Shl Medical AG
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Most cited
By later US patents
- Systems and methods of electric motor control930US 6,586,898 B2Magnon Engineering, Inc. · 2003
- Surgical machine and method for controlling and/or regulating a surgical machine918US 7,362,062 B2Aesculap AG · 2008
- Apparatus and method for detection and control of circulating currents in a variable speed DC motor243US 5,552,685 AGeneral Electric Company · 1996
- Electric motor187US 9,570,945 B2Grundfos Holding A/S · 2017
- Control circuit for five-phase brushless DC motor143US 5,744,921 ASiemens Electric Limited · 1998