H02K 7/1869
Linear generators
Official title: {Linear generators; sectional generators}
H02K7/1869 (Linear generators) appears on 502 US grants and 580 published applications in this corpus.
Search patents in H02K- Granted patents
- 502
- Published applications
- 580
- Assignees
- 303
- Inventors
- 940
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 13 | 1 |
| 2002 | 5 | 3 |
| 2003 | 2 | 8 |
| 2004 | 6 | 3 |
| 2005 | 8 | 16 |
| 2006 | 7 | 15 |
| 2007 | 12 | 24 |
| 2008 | 11 | 13 |
| 2009 | 11 | 27 |
| 2010 | 17 | 33 |
| 2011 | 12 | 41 |
| 2012 | 15 | 33 |
| 2013 | 36 | 35 |
| 2014 | 28 | 28 |
| 2015 | 22 | 22 |
| 2016 | 24 | 41 |
| 2017 | 22 | 32 |
| 2018 | 33 | 27 |
| 2019 | 31 | 28 |
| 2020 | 27 | 36 |
| 2021 | 29 | 18 |
| 2022 | 18 | 27 |
| 2023 | 30 | 19 |
| 2024 | 20 | 21 |
| 2025 | 14 | 17 |
| 2026 | 10 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- System for optimizing an internal combustion engine8 Sep 2026US 12,729,641 B2Crow Technologies S.R.L.
- High-power core system25 Aug 2026US 12,719,334 B2Mainspring Energy, Inc.
- Power controller for linear actuator in docking device14 Jul 2026US 12,683,529 B2Ihi Aerospace Co., Ltd.
- Integrated piston assembly for an electric machine2 Jun 2026US 12,646,997 B2Hyliion Holdings Corp.
- System and method of generating electricity using renewable energy from environment2 Jun 2026US 12,647,012 B2
- Electromechanical transduction for energy storage compliant mechanisms8 Oct 2026US 2026/0312462 A1Brigham Young University
- Eco-friendly generator using douly-fed actively driven multi-phase winding8 Oct 2026US 2026/0312463 A1M-Waves Co. Ltd.
- Power generating device27 Aug 2026US 2026/0254314 A1TET ENERGY GmbH
- Electric motor (ii)13 Aug 2026US 2026/0238106 A1
- Energy storage and conversion in linear generators9 Jul 2026US 2026/0194003 A1Mainspring Energy, Inc.
Most cited
By later US patents
- Linear motion electric power generator301US 5,347,186 AKAB Laboratories Inc. · 1994
- Contactless energy transfer apparatus265US 6,331,744 B1Light Sciences Corporation · 2001
- Hybrid electric propulsion system164US 5,172,784 A1992
- Horizontal axis wind turbine145US 6,064,123 A2000
- System for generating electrical energy from ambient motion137US 7,847,421 B2Willowview Systems, Inc. · 2010