H02K 7/02
Additional mass for increasing inertia
Official title: Additional mass for increasing inertia, e.g. flywheels
H02K7/02 (Additional mass for increasing inertia) appears on 850 US grants and 893 published applications in this corpus.
Search patents in H02K- Granted patents
- 850
- Published applications
- 893
- Assignees
- 444
- Inventors
- 1,428
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 0 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 6 | 0 |
| 1985 | 3 | 0 |
| 1986 | 5 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 5 | 0 |
| 1995 | 9 | 0 |
| 1996 | 9 | 0 |
| 1997 | 10 | 0 |
| 1998 | 25 | 0 |
| 1999 | 23 | 0 |
| 2000 | 18 | 0 |
| 2001 | 14 | 3 |
| 2002 | 11 | 13 |
| 2003 | 11 | 20 |
| 2004 | 25 | 17 |
| 2005 | 12 | 17 |
| 2006 | 15 | 12 |
| 2007 | 15 | 19 |
| 2008 | 14 | 15 |
| 2009 | 12 | 12 |
| 2010 | 12 | 29 |
| 2011 | 10 | 23 |
| 2012 | 10 | 24 |
| 2013 | 12 | 37 |
| 2014 | 24 | 45 |
| 2015 | 23 | 36 |
| 2016 | 29 | 60 |
| 2017 | 33 | 52 |
| 2018 | 38 | 54 |
| 2019 | 44 | 65 |
| 2020 | 59 | 54 |
| 2021 | 52 | 55 |
| 2022 | 49 | 47 |
| 2023 | 49 | 56 |
| 2024 | 42 | 56 |
| 2025 | 47 | 46 |
| 2026 | 27 | 26 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Power generation device6 Oct 2026US 12,756,266 B1Applied-Energy-Laboratory, Ltd.
- Mechanisms, assemblies and electronic locking system15 Sep 2026US 12,738,112 B2Assa Abloy AB
- System for clean, renewable and sustainable power generation15 Sep 2026US 12,738,806 B2Eko Kuasa Technology Sdn Bhd
- Inertia flywheel assembly and system thereof8 Sep 2026US 12,729,754 B2Infiniforce, Inc.
- Shipping container tracking methods25 Aug 2026US 12,718,186 B2Teleme Trak, Inc.
- Methods of generating electric power and a distributed network of a generator-turbine apparatus having a set of electric generators simultaneously driven by a gravity-force applied and moment imbalanced turbine8 Oct 2026US 2026/0309131 A1
- Systems and methods for power generation, transmission, amplification and/or storage8 Oct 2026US 2026/0312461 A1Green Lab IP Nominee Pty Ltd
- Mechanically coupled hybrid generator24 Sep 2026US 2026/0291327 A1Alliance North America, Inc.
- Driving device and blood pump10 Sep 2026US 2026/0269681 A1Shenzhen Core Medical Technology Co., Ltd.
- Mechanical renewable green energy production3 Sep 2026US 2026/0261182 A1Phos Global Energy Solutions, Inc.
Most cited
By later US patents
- Wind turbine119US 7,042,109 B22006
- Electric machine with a transformer having a rotating component117US 5,519,275 AColeman Powermate, Inc. · 1996
- Robust minimal-loss flywheel systems96US 6,794,777 B12004
- Combination fan-flywheel-pulley assembly and method of forming92US 6,695,581 B2McMillan Electric Company · 2004
- High efficiency DC motor with generator and flywheel characteristics83US 5,514,923 A1996