H02K 21/125
Having an annular armature coil
Official title: {having an annular armature coil (H02K21/14 - H02K21/24 take precedence)}
H02K21/125 (Having an annular armature coil) appears on 100 US grants and 89 published applications in this corpus.
Search patents in H02K- Granted patents
- 100
- Published applications
- 89
- Assignees
- 62
- Inventors
- 169
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 7 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 4 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 6 |
| 2005 | 2 | 1 |
| 2006 | 5 | 4 |
| 2007 | 0 | 0 |
| 2008 | 1 | 3 |
| 2009 | 1 | 7 |
| 2010 | 1 | 3 |
| 2011 | 7 | 6 |
| 2012 | 3 | 4 |
| 2013 | 3 | 1 |
| 2014 | 3 | 3 |
| 2015 | 0 | 3 |
| 2016 | 2 | 2 |
| 2017 | 1 | 3 |
| 2018 | 0 | 3 |
| 2019 | 6 | 3 |
| 2020 | 4 | 6 |
| 2021 | 0 | 3 |
| 2022 | 4 | 6 |
| 2023 | 9 | 9 |
| 2024 | 5 | 4 |
| 2025 | 3 | 5 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Electrical machine79US 5,289,072 AJ. M. Voith GmbH · 1994
- Transversal flow machine in accumulator arrangement76US 5,051,641 AJ. M. Voith GmbH · 1991
- Permanent magnetized synchronous machine designed according to the transverse flux principle72US 5,117,142 A501 Ibk AB · 1992
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