H02K 21/044
Rotor of the claw pole type
Official title: {Rotor of the claw pole type}
H02K21/044 (Rotor of the claw pole type) appears on 231 US grants and 191 published applications in this corpus.
Search patents in H02K- Granted patents
- 231
- Published applications
- 191
- Assignees
- 42
- Inventors
- 266
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 6 | 0 |
| 1997 | 0 | 0 |
| 1998 | 6 | 0 |
| 1999 | 14 | 0 |
| 2000 | 16 | 0 |
| 2001 | 11 | 3 |
| 2002 | 10 | 9 |
| 2003 | 6 | 5 |
| 2004 | 10 | 15 |
| 2005 | 12 | 13 |
| 2006 | 9 | 7 |
| 2007 | 3 | 14 |
| 2008 | 10 | 9 |
| 2009 | 8 | 11 |
| 2010 | 11 | 14 |
| 2011 | 9 | 12 |
| 2012 | 13 | 4 |
| 2013 | 5 | 7 |
| 2014 | 2 | 7 |
| 2015 | 6 | 8 |
| 2016 | 5 | 3 |
| 2017 | 5 | 8 |
| 2018 | 4 | 2 |
| 2019 | 7 | 19 |
| 2020 | 10 | 5 |
| 2021 | 9 | 3 |
| 2022 | 5 | 11 |
| 2023 | 4 | 0 |
| 2024 | 3 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Brushless alternator5 May 2026US 12,620,849 B2Rapid Power Industries
- Claw pole rotor for an electrical machine8 Oct 2024US 12,113,411 B2FEAAM GmbH
- Rotating electrical machine14 May 2024US 11,984,795 B2Denso Corporation
- Rotating electrical machine16 Apr 2024US 11,962,228 B2Denso Corporation
- Rotating electrical machine28 Nov 2023US 11,831,228 B2Denso Corporation
- Brushless alternator18 Jun 2026US 2026/0171859 A1Rapid Power Industries
- Improved brushless alternator19 Sep 2024US 2024/0313593 A1Rapid Power Industries
- Electric rotating machine1 Dec 2022US 2022/0385157 A1Mitsubishi Electric Corporation
- Rotor of rotary electric machine20 Oct 2022US 2022/0337143 A1Exedy Corporation
- Claw pole rotor for an electrical machine25 Aug 2022US 2022/0271638 A1FEAAM GmbH
Most cited
By later US patents
- Alternator for an automotive vehicle130US 5,998,903 ADenso Corporation · 1999
- Alternating current generator100US 4,959,577 AGeneral Motors Corporation · 1990
- Rotor for a rotating electric machine96US 5,483,116 ANippondenso Co., Ltd. · 1996
- Alternator for vehicle85US 6,291,918 B1Denso Corporation · 2001
- AC generator with annular permanent magnets84US 5,132,581 ANippondenso Co., Ltd. · 1992