H02K 7/1876
With reciprocating, linearly oscillating or vibrating parts
Official title: {with reciprocating, linearly oscillating or vibrating parts}
H02K7/1876 (With reciprocating, linearly oscillating or vibrating parts) appears on 422 US grants and 475 published applications in this corpus.
Search patents in H02K- Granted patents
- 422
- Published applications
- 475
- Assignees
- 248
- Inventors
- 790
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 13 | 1 |
| 2002 | 5 | 3 |
| 2003 | 2 | 6 |
| 2004 | 4 | 3 |
| 2005 | 7 | 13 |
| 2006 | 5 | 13 |
| 2007 | 9 | 19 |
| 2008 | 8 | 12 |
| 2009 | 9 | 21 |
| 2010 | 16 | 25 |
| 2011 | 11 | 31 |
| 2012 | 13 | 27 |
| 2013 | 30 | 26 |
| 2014 | 25 | 26 |
| 2015 | 17 | 15 |
| 2016 | 16 | 35 |
| 2017 | 20 | 27 |
| 2018 | 28 | 23 |
| 2019 | 28 | 25 |
| 2020 | 23 | 28 |
| 2021 | 26 | 15 |
| 2022 | 13 | 25 |
| 2023 | 26 | 15 |
| 2024 | 17 | 16 |
| 2025 | 12 | 16 |
| 2026 | 7 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
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- 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
- Energy harvester using electromagnetic induction and energy harvesting block7 Apr 2026US 12,597,826 B2Huject
- 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.
- Core synchronization for linear generators25 Jun 2026US 2026/0180479 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
- System for generating electrical energy from ambient motion137US 7,847,421 B2Willowview Systems, Inc. · 2010
- Method and means for powering portable oxygen supply systems108US 5,370,112 ADeVilbiss Health Care, Inc. · 1994