H02J 3/30
Using dynamo-electric machines coupled to flywheels
Official title: using dynamo-electric machines coupled to flywheels
H02J3/30 (Using dynamo-electric machines coupled to flywheels) appears on 179 US grants and 206 published applications in this corpus.
Search patents in H02J- Granted patents
- 179
- Published applications
- 206
- Assignees
- 125
- Inventors
- 375
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 0 | 1 |
| 2005 | 3 | 4 |
| 2006 | 2 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 1 |
| 2009 | 1 | 1 |
| 2010 | 2 | 0 |
| 2011 | 1 | 6 |
| 2012 | 3 | 5 |
| 2013 | 2 | 8 |
| 2014 | 4 | 9 |
| 2015 | 6 | 15 |
| 2016 | 7 | 12 |
| 2017 | 10 | 9 |
| 2018 | 10 | 11 |
| 2019 | 16 | 20 |
| 2020 | 10 | 15 |
| 2021 | 18 | 24 |
| 2022 | 15 | 15 |
| 2023 | 19 | 18 |
| 2024 | 11 | 16 |
| 2025 | 10 | 5 |
| 2026 | 4 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Controlling an energy storage device11 Aug 2026US 12,706,467 B2Siemens Gamesa Renewable Energy A/S
- Mechanical renewable green energy production7 Jul 2026US 12,674,503 B2Phos Global Energy Solutions, Inc.
- Grid frequency deviation response control system and method24 Feb 2026US 12,562,571 B2China Electric Power Research Institute
- Power control device3 Feb 2026US 12,541,804 B2Systemex Energies Inc.
- Magnetic flywheel energy management system and method30 Dec 2025US 12,512,723 B2
- Power control device20 Aug 2026US 2026/0245153 A1Systemex Energies Inc.
- Microgrid9 Jul 2026US 2026/0196841 A1
- Systems and methods for auxiliary power management of behind-the-meter power loads16 Apr 2026US 2026/0106459 A1Lancium LLC
- Wave energy power generation and flywheel energy storage integration system and method thereof26 Feb 2026US 2026/0058472 A1National Cheng Kung University
- Utilization of distributed generator inverters as statcom29 Jan 2026US 2026/0031623 A1
Most cited
By later US patents
- Universal distributed-resource interface132US 6,134,124 AABB Power T&D Company Inc. · 2000
- Energy storage attitude control and reference system77US 4,723,735 AThe Charles Stark Draper Laboratory, Inc. · 1988
- Energy transfer and storage apparatus for delivery of pulsed power77US 9,373,963 B2Raytheon Company · 2016
- Communication and control network for distributed power resource units76US 6,882,904 B1ABB Technology AG · 2005
- Transformerless, load adaptive speed controller76US 6,969,922 B2Youtility, INC · 2005