H02K 41/00
Propulsion systems in which a rigid body is moved along a path
Official title: Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path {(electromagnetic launchers F41B6/00)}
H02K41/00 (Propulsion systems in which a rigid body is moved along a path) appears on 4,925 US grants and 4,686 published applications in this corpus.
Search patents in H02K- Granted patents
- 4,925
- Published applications
- 4,686
- Assignees
- 1,601
- Inventors
- 7,073
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 19 | 0 |
| 1977 | 17 | 0 |
| 1978 | 22 | 0 |
| 1979 | 14 | 0 |
| 1980 | 21 | 0 |
| 1981 | 29 | 0 |
| 1982 | 22 | 0 |
| 1983 | 24 | 0 |
| 1984 | 19 | 0 |
| 1985 | 34 | 0 |
| 1986 | 35 | 0 |
| 1987 | 57 | 0 |
| 1988 | 47 | 0 |
| 1989 | 54 | 0 |
| 1990 | 32 | 0 |
| 1991 | 40 | 0 |
| 1992 | 61 | 0 |
| 1993 | 54 | 0 |
| 1994 | 62 | 0 |
| 1995 | 42 | 0 |
| 1996 | 39 | 0 |
| 1997 | 77 | 0 |
| 1998 | 92 | 0 |
| 1999 | 81 | 0 |
| 2000 | 70 | 0 |
| 2001 | 70 | 29 |
| 2002 | 58 | 96 |
| 2003 | 78 | 84 |
| 2004 | 114 | 122 |
| 2005 | 99 | 118 |
| 2006 | 68 | 111 |
| 2007 | 65 | 105 |
| 2008 | 79 | 154 |
| 2009 | 82 | 154 |
| 2010 | 125 | 169 |
| 2011 | 147 | 150 |
| 2012 | 108 | 147 |
| 2013 | 124 | 152 |
| 2014 | 114 | 144 |
| 2015 | 94 | 179 |
| 2016 | 133 | 186 |
| 2017 | 177 | 225 |
| 2018 | 190 | 257 |
| 2019 | 221 | 295 |
| 2020 | 256 | 350 |
| 2021 | 257 | 305 |
| 2022 | 293 | 281 |
| 2023 | 258 | 275 |
| 2024 | 262 | 256 |
| 2025 | 251 | 197 |
| 2026 | 138 | 145 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Transportation system6 Oct 2026US 12,752,633 B2
- 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
- Armature and driving device29 Sep 2026US 12,749,939 B2Sumitomo Heavy Industries, Ltd.
- Transport device and method for operating a transport device29 Sep 2026US 12,749,960 B2ABB Schweiz AG
- Object Loading Facility1 Oct 2026US 2026/0296808 A1LG Energy Solution, Ltd.
- Lens driving device, camera module, and optical instrument1 Oct 2026US 2026/0299250 A1LG Innotek Co., Ltd.
- Camera actuator and camera module including same1 Oct 2026US 2026/0299373 A1LG Innotek Co., Ltd.
- Linear motor module and linear conveyance system1 Oct 2026US 2026/0302897 A1Thk Co., Ltd.
- Lens driving device, camera module, and optical device24 Sep 2026US 2026/0287975 A1LG Innotek Co., Ltd.
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
- Hall-effect based linear motor controller1,018US 8,084,969 B2Allegro MicroSystems, LLC · 2011
- 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