F03D 7/0248
By mechanical means acting on the power train
Official title: {by mechanical means acting on the power train}
F03D7/0248 (By mechanical means acting on the power train) appears on 115 US grants and 144 published applications in this corpus.
Search patents in F03D- Granted patents
- 115
- Published applications
- 144
- Assignees
- 67
- Inventors
- 281
- Latest grant
- 16 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 2 |
| 2003 | 1 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 2 |
| 2006 | 3 | 4 |
| 2007 | 2 | 3 |
| 2008 | 1 | 5 |
| 2009 | 5 | 4 |
| 2010 | 4 | 10 |
| 2011 | 7 | 22 |
| 2012 | 9 | 14 |
| 2013 | 4 | 11 |
| 2014 | 11 | 10 |
| 2015 | 6 | 9 |
| 2016 | 4 | 4 |
| 2017 | 9 | 5 |
| 2018 | 11 | 6 |
| 2019 | 5 | 8 |
| 2020 | 3 | 3 |
| 2021 | 4 | 4 |
| 2022 | 4 | 2 |
| 2023 | 3 | 6 |
| 2024 | 8 | 6 |
| 2025 | 5 | 3 |
By publication year. Applications have been published since 2001.
Recent patents
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- Passive brake unit for a wind turbine16 Oct 2025US 2025/0320849 A1The Carlson Company, Inc.
- Hydraulic system for a rotor brake, rotor brake and wind turbine27 Mar 2025US 2025/0101945 A1
- Wind turbine yawing system with multiple mechanical braking levels20 Feb 2025US 2025/0059948 A1Vestas Wind Systems A/S
- Service brake for a wind turbine yaw motor10 Oct 2024US 2024/0337246 A1Siemens Gamesa Renewable Energy A/S
- Rotating unbalanced rotor hubs and installing wind turbine rotor blades3 Oct 2024US 2024/0328394 A1General Electric Renovables Espana, S.L.
Most cited
By later US patents
- Wind powered electrical generator92US 4,289,970 A1981
- Direct drive wind turbine70US 7,075,192 B2Northern Power Systems, Inc. · 2006
- Coupled vortex vertical axis wind turbine59US 6,784,566 B22004
- Direct drive wind turbine53US 7,109,600 B1Northern Power Systems, Inc. · 2006
- Direct drive wind turbine52US 7,183,665 B2Northern Power Systems, Inc. · 2007