H02K 19/22
Having windings each turn of which co-operates alternately with poles of opposite
Official title: having windings each turn of which co-operates alternately with poles of opposite polarity, e.g. heteropolar generators
H02K19/22 (Having windings each turn of which co-operates alternately with poles of opposite) appears on 304 US grants and 200 published applications in this corpus.
Search patents in H02K- Granted patents
- 304
- Published applications
- 200
- Assignees
- 129
- Inventors
- 485
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 5 | 0 |
| 1988 | 6 | 0 |
| 1989 | 3 | 0 |
| 1990 | 6 | 0 |
| 1991 | 5 | 0 |
| 1992 | 4 | 0 |
| 1993 | 6 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 8 | 0 |
| 1999 | 16 | 0 |
| 2000 | 22 | 0 |
| 2001 | 15 | 3 |
| 2002 | 10 | 7 |
| 2003 | 8 | 12 |
| 2004 | 11 | 3 |
| 2005 | 6 | 7 |
| 2006 | 1 | 6 |
| 2007 | 3 | 11 |
| 2008 | 5 | 10 |
| 2009 | 5 | 11 |
| 2010 | 15 | 6 |
| 2011 | 6 | 8 |
| 2012 | 6 | 8 |
| 2013 | 4 | 11 |
| 2014 | 10 | 9 |
| 2015 | 4 | 7 |
| 2016 | 4 | 6 |
| 2017 | 3 | 12 |
| 2018 | 8 | 7 |
| 2019 | 8 | 26 |
| 2020 | 18 | 6 |
| 2021 | 16 | 6 |
| 2022 | 5 | 5 |
| 2023 | 1 | 1 |
| 2024 | 4 | 4 |
| 2025 | 4 | 5 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Alternator with rotor lamination stack16 Jun 2026US 12,658,746 B2Generac Power Systems, Inc.
- Brushless alternator5 May 2026US 12,620,849 B2Rapid Power Industries
- Alternator assembly16 Dec 2025US 12,500,460 B2Rapid Power Industries
- Wet and dry cavity generator systems and methods of manufacturing the same13 May 2025US 12,301,063 B2GE Aviation Systems LLC
- Portable power storage device with a self-generation and nano-capacitor storage structure29 Apr 2025US 12,289,036 B2
- Synchronous electric machine with fixed clawed inductor17 Sep 2026US 2026/0280362 A1
- Brushless alternator18 Jun 2026US 2026/0171859 A1Rapid Power Industries
- Alternator assembly11 Jun 2026US 2026/0163421 A1Rapid Power Industries
- Dual-armature flux-switching electrically excited machine25 Sep 2025US 2025/0300511 A1Zhejiang University of Science and Technology
- Switched reluctance machines without permanent magnets29 May 2025US 2025/0175065 A1Linear Labs, Inc.
Most cited
By later US patents
- Alternator for an automotive vehicle130US 5,998,903 ADenso Corporation · 1999
- Electric machine with a transformer having a rotating component117US 5,519,275 AColeman Powermate, Inc. · 1996
- Stator winding arrangement of alternator for vehicle100US 5,965,965 ADenso Corporation · 1999
- Variable speed variable reluctance electrical machines93US 4,670,696 AKollmorgen Technologies Corporation · 1987
- Alternator for vehicle91US 5,955,810 ADenso Corporation · 1999