H02K 41/03
Synchronous motors
Official title: Synchronous motors; Motors moving step by step; Reluctance motors (H02K41/035 takes precedence)
H02K41/03 (Synchronous motors) appears on 2,339 US grants and 2,305 published applications in this corpus.
Search patents in H02K- Granted patents
- 2,339
- Published applications
- 2,305
- Assignees
- 933
- Inventors
- 3,719
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 9 | 0 |
| 1979 | 4 | 0 |
| 1980 | 8 | 0 |
| 1981 | 7 | 0 |
| 1982 | 9 | 0 |
| 1983 | 8 | 0 |
| 1984 | 4 | 0 |
| 1985 | 13 | 0 |
| 1986 | 14 | 0 |
| 1987 | 26 | 0 |
| 1988 | 22 | 0 |
| 1989 | 23 | 0 |
| 1990 | 15 | 0 |
| 1991 | 17 | 0 |
| 1992 | 21 | 0 |
| 1993 | 24 | 0 |
| 1994 | 18 | 0 |
| 1995 | 17 | 0 |
| 1996 | 15 | 0 |
| 1997 | 40 | 0 |
| 1998 | 39 | 0 |
| 1999 | 43 | 0 |
| 2000 | 48 | 0 |
| 2001 | 40 | 14 |
| 2002 | 41 | 70 |
| 2003 | 51 | 57 |
| 2004 | 80 | 81 |
| 2005 | 71 | 77 |
| 2006 | 41 | 81 |
| 2007 | 49 | 63 |
| 2008 | 54 | 98 |
| 2009 | 58 | 101 |
| 2010 | 66 | 88 |
| 2011 | 86 | 80 |
| 2012 | 49 | 80 |
| 2013 | 68 | 80 |
| 2014 | 64 | 83 |
| 2015 | 53 | 85 |
| 2016 | 62 | 77 |
| 2017 | 85 | 99 |
| 2018 | 75 | 125 |
| 2019 | 104 | 118 |
| 2020 | 117 | 143 |
| 2021 | 105 | 122 |
| 2022 | 120 | 114 |
| 2023 | 95 | 108 |
| 2024 | 98 | 103 |
| 2025 | 106 | 99 |
| 2026 | 50 | 59 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Steering gears with electric steering assist systems and related methods6 Oct 2026US 12,752,835 B2Ford Global Technologies, LLC
- Steering control device29 Sep 2026US 12,746,965 B2Hl Mando Corporation
- Transport device and method for operating a transport device29 Sep 2026US 12,749,960 B2ABB Schweiz AG
- Linear motor driving means for acoustic emitters22 Sep 2026US 12,742,898 B2Akitemos Solutions AB
- Transfer apparatus15 Sep 2026US 12,735,278 B2Semes Co., Ltd.
- Object Loading Facility1 Oct 2026US 2026/0296808 A1LG Energy Solution, Ltd.
- Linear motor module and linear conveyance system1 Oct 2026US 2026/0302897 A1Thk Co., Ltd.
- Stators, stator devices, and attachment of cover to stator for displacement systems24 Sep 2026US 2026/0291356 A1Planar Motor Incorporated
- Method for operating a linear transport system and linear transport system17 Sep 2026US 2026/0274595 A1Beckhoff Automation GmbH
- Linear conveyor device and method for controlling linear conveyor device10 Sep 2026US 2026/0269758 A1Yamaha Hatsudoki Kabushiki Kaisha
Most cited
By later US patents
- Rotary and linear motor1,441US 6,429,611 B12002
- Linear stepper motor1,022US 6,756,705 B2Tri-Tech, Inc. · 2004
- Air gap control systems and methods405US 10,193,429 B2Boulder Wind Power, Inc. · 2019
- Method of implanting blood pump in ascending aorta or main pulmonary artery399US 5,290,227 A1994
- Sealless rotary blood pump with passive magnetic radial bearings and blood immersed axial bearings378US 5,695,471 AKriton Medical, Inc. · 1997