H02K 19/24
With variable-reluctance soft-iron rotors without winding
Official title: with variable-reluctance soft-iron rotors without winding
H02K19/24 (With variable-reluctance soft-iron rotors without winding) appears on 154 US grants and 92 published applications in this corpus.
Search patents in H02K- Granted patents
- 154
- Published applications
- 92
- Assignees
- 90
- Inventors
- 278
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 5 | 0 |
| 1989 | 3 | 0 |
| 1990 | 6 | 0 |
| 1991 | 5 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 6 | 0 |
| 2000 | 9 | 0 |
| 2001 | 5 | 2 |
| 2002 | 4 | 2 |
| 2003 | 2 | 4 |
| 2004 | 5 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 1 | 5 |
| 2009 | 1 | 4 |
| 2010 | 3 | 2 |
| 2011 | 2 | 3 |
| 2012 | 2 | 5 |
| 2013 | 2 | 7 |
| 2014 | 7 | 5 |
| 2015 | 4 | 4 |
| 2016 | 2 | 3 |
| 2017 | 1 | 6 |
| 2018 | 4 | 6 |
| 2019 | 5 | 14 |
| 2020 | 10 | 4 |
| 2021 | 9 | 3 |
| 2022 | 2 | 3 |
| 2023 | 1 | 0 |
| 2024 | 3 | 2 |
| 2025 | 2 | 3 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Variable speed variable reluctance electrical machines93US 4,670,696 AKollmorgen Technologies Corporation · 1987
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