Y02E 60/16
Mechanical energy storage
Official title: Mechanical energy storage, e.g. flywheels or pressurised fluids
Y02E60/16 (Mechanical energy storage) appears on 2,044 US grants and 2,166 published applications in this corpus.
Search patents in Y02E- Granted patents
- 2,044
- Published applications
- 2,166
- Assignees
- 886
- Inventors
- 3,277
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 20 | 0 |
| 1978 | 13 | 0 |
| 1979 | 19 | 0 |
| 1980 | 22 | 0 |
| 1981 | 20 | 0 |
| 1982 | 22 | 0 |
| 1983 | 15 | 0 |
| 1984 | 18 | 0 |
| 1985 | 17 | 0 |
| 1986 | 15 | 0 |
| 1987 | 12 | 0 |
| 1988 | 10 | 0 |
| 1989 | 18 | 0 |
| 1990 | 8 | 0 |
| 1991 | 5 | 0 |
| 1992 | 12 | 0 |
| 1993 | 10 | 0 |
| 1994 | 8 | 0 |
| 1995 | 17 | 0 |
| 1996 | 16 | 0 |
| 1997 | 20 | 0 |
| 1998 | 33 | 0 |
| 1999 | 28 | 0 |
| 2000 | 32 | 0 |
| 2001 | 29 | 7 |
| 2002 | 16 | 30 |
| 2003 | 22 | 47 |
| 2004 | 41 | 26 |
| 2005 | 21 | 48 |
| 2006 | 30 | 39 |
| 2007 | 31 | 53 |
| 2008 | 27 | 43 |
| 2009 | 24 | 63 |
| 2010 | 46 | 104 |
| 2011 | 54 | 120 |
| 2012 | 71 | 118 |
| 2013 | 68 | 118 |
| 2014 | 91 | 136 |
| 2015 | 64 | 136 |
| 2016 | 85 | 125 |
| 2017 | 106 | 114 |
| 2018 | 89 | 126 |
| 2019 | 120 | 119 |
| 2020 | 113 | 114 |
| 2021 | 107 | 124 |
| 2022 | 71 | 103 |
| 2023 | 109 | 94 |
| 2024 | 71 | 82 |
| 2025 | 87 | 43 |
| 2026 | 26 | 34 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods of modifying existing gas turbine engine design to create a combined storage engine and simple cycle peaker product6 Oct 2026US 12,753,719 B2Powerphase International, LLC
- Dual-tank control valve structure1 Sep 2026US 12,723,666 B2Canature Health Technology Group Co., Ltd.
- Energy storage tower25 Aug 2026US 12,716,397 B2Som-Ev, Newco LLC
- Gravitational potential energy storage systems and methods18 Aug 2026US 12,709,307 B2Advanced Rail Energy Storage, LLC
- Flywheel18 Aug 2026US 12,710,029 B2Levistor Ltd
- Energy management system and methods27 Aug 2026US 2026/0249712 A1
- Mechanical energy accumulator system27 Aug 2026US 2026/0254313 A1
- Flexible operation and reciprocating near-isothermal gas compressor/expander for wind energy storage20 Aug 2026US 2026/0243228 A1University of Virginia Patent Foundation
- Power control device20 Aug 2026US 2026/0245153 A1Systemex Energies Inc.
- Exciter and electronic device13 Aug 2026US 2026/0233252 A1Goertek Inc.
Most cited
By later US patents
- Power plant utilizing compressed air energy storage and saturation333US 5,491,969 AElectric Power Research Institute, Inc. · 1996
- Compressed air energy storage method and system274US 5,537,822 AThe Israel Electric Corporation Ltd. · 1996
- Portable power supply193US 5,019,767 ANintendo Co., Ltd. · 1991
- Natural energy conversion, storage and electricity generation system162US 4,206,608 A1980
- Compressed gas energy storage system with cooling capability154US 5,634,340 ADresser-Rand Company · 1997