H02K 1/00
Details of the magnetic circuit
Official title: Details of the magnetic circuit (magnetic circuits for relays H01H50/16)
H02K1/00 (Details of the magnetic circuit) appears on 15,385 US grants and 18,852 published applications in this corpus.
Search patents in H02K- Granted patents
- 15,385
- Published applications
- 18,852
- Assignees
- 3,684
- Inventors
- 25,041
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 39 | 0 |
| 1977 | 32 | 0 |
| 1978 | 44 | 0 |
| 1979 | 30 | 0 |
| 1980 | 41 | 0 |
| 1981 | 41 | 0 |
| 1982 | 49 | 0 |
| 1983 | 34 | 0 |
| 1984 | 44 | 0 |
| 1985 | 40 | 0 |
| 1986 | 65 | 0 |
| 1987 | 79 | 0 |
| 1988 | 51 | 0 |
| 1989 | 84 | 0 |
| 1990 | 88 | 0 |
| 1991 | 64 | 0 |
| 1992 | 74 | 0 |
| 1993 | 80 | 0 |
| 1994 | 81 | 0 |
| 1995 | 77 | 0 |
| 1996 | 84 | 0 |
| 1997 | 100 | 0 |
| 1998 | 173 | 0 |
| 1999 | 182 | 0 |
| 2000 | 200 | 0 |
| 2001 | 186 | 69 |
| 2002 | 228 | 314 |
| 2003 | 181 | 273 |
| 2004 | 316 | 384 |
| 2005 | 280 | 337 |
| 2006 | 262 | 370 |
| 2007 | 194 | 408 |
| 2008 | 201 | 409 |
| 2009 | 237 | 430 |
| 2010 | 361 | 502 |
| 2011 | 373 | 523 |
| 2012 | 314 | 544 |
| 2013 | 351 | 713 |
| 2014 | 422 | 732 |
| 2015 | 427 | 780 |
| 2016 | 444 | 808 |
| 2017 | 593 | 988 |
| 2018 | 679 | 1065 |
| 2019 | 984 | 1202 |
| 2020 | 1067 | 1247 |
| 2021 | 949 | 1124 |
| 2022 | 948 | 1288 |
| 2023 | 836 | 1152 |
| 2024 | 1035 | 1284 |
| 2025 | 960 | 1027 |
| 2026 | 681 | 879 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Magnetization method and magnetization apparatus6 Oct 2026US 12,755,884 B2Toyota Jidosha Kabushiki Kaisha
- Aluminum alloy with high electrical conductivity and elevated temperature strength for use in electric vehicle motors6 Oct 2026US 12,756,245 B2Ford Global Technologies, LLC
- 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
- Installation structure of stator core for axial gap motor6 Oct 2026US 12,756,247 B2Subaru Corporation
- Stator arrangement for a radial flux motor6 Oct 2026US 12,756,248 B2BorgWarner Inc.
- Motor Retention and Airflow Guide in a Power Tool8 Oct 2026US 2026/0307234 A1Black & Decker Inc.
- Pod drive8 Oct 2026US 2026/0307770 A1Hd Hyundai Electric Co., Ltd.
- Rare earth sintered magnet, method for producing rare earth sintered magnet, rotor, and rotary machine8 Oct 2026US 2026/0311916 A1Mitsubishi Electric Corporation
- Electric motor8 Oct 2026US 2026/0312440 A1Nanjing Chervon Industry Co., Ltd.
- Electric motor8 Oct 2026US 2026/0312441 A1Nanjing Chervon Industry Co., Ltd.
Most cited
By later US patents
- Methods and apparatus for increasing power of permanent magnet motors1,432US 6,777,838 B22004
- Electric machine having an integrally continuous stator winding and stator slot bridges1,193US 6,936,948 B2Pratt & Whitney Canada Corp. · 2005
- Architecture for electric machine1,149US 7,583,063 B2Pratt & Whitney Canada Corp. · 2009
- Blower with bearing tube333US 8,636,479 B2ResMed Motor Technologies Inc. · 2014
- Blood pump with sterile motor housing265US 6,210,133 B1A-Med Systems, Inc. · 2001