F16F 15/31
Characterised by means for varying the moment of inertia
Official title: characterised by means for varying the moment of inertia
F16F15/31 (Characterised by means for varying the moment of inertia) appears on 120 US grants and 140 published applications in this corpus.
Search patents in F16F- Granted patents
- 120
- Published applications
- 140
- Assignees
- 70
- Inventors
- 272
- Latest grant
- 27 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 2 |
| 2003 | 0 | 3 |
| 2004 | 1 | 2 |
| 2005 | 3 | 3 |
| 2006 | 2 | 2 |
| 2007 | 1 | 1 |
| 2008 | 0 | 2 |
| 2009 | 1 | 1 |
| 2010 | 2 | 5 |
| 2011 | 3 | 4 |
| 2012 | 0 | 7 |
| 2013 | 4 | 6 |
| 2014 | 3 | 12 |
| 2015 | 5 | 11 |
| 2016 | 3 | 5 |
| 2017 | 5 | 7 |
| 2018 | 8 | 14 |
| 2019 | 11 | 23 |
| 2020 | 14 | 5 |
| 2021 | 8 | 7 |
| 2022 | 4 | 8 |
| 2023 | 8 | 3 |
| 2024 | 7 | 2 |
| 2025 | 2 | 5 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Variable density flywheel assembly16 Sep 2025US 12,416,346 B1
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- Structure self-adjusting type vehicle-mounted flywheel battery coping with multiple operation modes and operating method thereof13 Aug 2024US 12,062,967 B2Jiangsu University
- Flywheel device of energy converting equipment23 Oct 2025US 2025/0330058 A1
- Rotating electrical machine and operating method thereof23 Oct 2025US 2025/0330059 A1
- Roll stabilization and related apparatuses14 Aug 2025US 2025/0256816 A1Dometic Marine Canada Inc.
- Wearable device to counteract tremor17 Jul 2025US 2025/0228687 A1Equibands Inc.
- Working vehicle10 Apr 2025US 2025/0115113 A1Kubota Corporation
Most cited
By later US patents
- Method and apparatus for continuously suppressing unwanted rotational phenomena in a rotating body36US 5,099,430 A1992
- Wind power and flywheel apparatus35US 3,970,409 ALawrence Peska Associates, Inc. · 1976
- Torsional vibration absorber system28US 5,295,411 A1994
- Flywheel energy accummulator24US 6,236,127 B1Forschungszentrum Karlsruhe GmbH · 2001
- Safety flywheel23US 4,132,130 A1979