H02K 1/274
The rotor consisting of two or more circumferentially positioned magnets
Official title: the rotor consisting of two or more circumferentially positioned magnets
H02K1/274 (The rotor consisting of two or more circumferentially positioned magnets) appears on 4,092 US grants and 5,253 published applications in this corpus.
Search patents in H02K- Granted patents
- 4,092
- Published applications
- 5,253
- Assignees
- 1,185
- Inventors
- 7,343
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 5 | 0 |
| 1982 | 8 | 0 |
| 1983 | 4 | 0 |
| 1984 | 14 | 0 |
| 1985 | 10 | 0 |
| 1986 | 18 | 0 |
| 1987 | 23 | 0 |
| 1988 | 14 | 0 |
| 1989 | 12 | 0 |
| 1990 | 16 | 0 |
| 1991 | 12 | 0 |
| 1992 | 16 | 0 |
| 1993 | 12 | 0 |
| 1994 | 14 | 0 |
| 1995 | 12 | 0 |
| 1996 | 13 | 0 |
| 1997 | 20 | 0 |
| 1998 | 33 | 0 |
| 1999 | 35 | 0 |
| 2000 | 37 | 0 |
| 2001 | 29 | 12 |
| 2002 | 38 | 66 |
| 2003 | 28 | 59 |
| 2004 | 63 | 78 |
| 2005 | 68 | 67 |
| 2006 | 50 | 86 |
| 2007 | 30 | 94 |
| 2008 | 50 | 79 |
| 2009 | 50 | 122 |
| 2010 | 85 | 157 |
| 2011 | 108 | 123 |
| 2012 | 83 | 181 |
| 2013 | 97 | 240 |
| 2014 | 132 | 245 |
| 2015 | 146 | 232 |
| 2016 | 149 | 244 |
| 2017 | 196 | 257 |
| 2018 | 203 | 309 |
| 2019 | 282 | 353 |
| 2020 | 312 | 364 |
| 2021 | 257 | 343 |
| 2022 | 309 | 399 |
| 2023 | 258 | 341 |
| 2024 | 303 | 336 |
| 2025 | 238 | 250 |
| 2026 | 188 | 216 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Crystalline radical polymerizable composition for fixing a magnet of a rotating electric machine rotor core, a rotating electric machine rotor core using the composition, and a method of manufacturing the rotating electric machine rotor core6 Oct 2026US 12,756,246 B2Aisin Corporation
- Rotor for a permanent magnet electric machine6 Oct 2026US 12,756,250 B2GM Global Technology Operations LLC
- Rotor apparatus for an electric machine6 Oct 2026US 12,756,251 B2Jaguar Land Rover Limited
- Rotor, rotary electric machine, and drive device6 Oct 2026US 12,756,252 B2Nidec Corporation
- Electric machine6 Oct 2026US 12,756,284 B2Schaeffler Technologies AG & Co. KG
- Pod drive8 Oct 2026US 2026/0307770 A1Hd Hyundai Electric Co., Ltd.
- Rotary electric machine8 Oct 2026US 2026/0312442 A1Denso Corporation
- Rotor core, rotor, and electric motor8 Oct 2026US 2026/0312445 A1Fanuc Corporation
- Laminated core, rotor, and manufacturing method of laminated core8 Oct 2026US 2026/0312446 A1Nippon Steel Corporation
- Permanent magnet rotor8 Oct 2026US 2026/0312447 A1ABB Schweiz AG
Most cited
By later US patents
- Blood pump having a magnetically suspended rotor250US 6,447,266 B2The United States of America as represented by the United States National Aeronautics and Space Administration · 2002
- Magnetically suspended miniature fluid pump and method of designing the same240US 6,015,272 AThe United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 2000
- Hybrid alternator213US 5,747,909 AEcoair Corp. · 1998
- Magnetically suspended miniature fluid pump and method of designing the same187US 6,447,265 B1The United States of America as represented by the United States National Aeronautics and Space Administration · 2002
- Electric motor187US 9,570,945 B2Grundfos Holding A/S · 2017