F03D 7/0252
With aerodynamic drag devices on the blades
Official title: {with aerodynamic drag devices on the blades}
F03D7/0252 (With aerodynamic drag devices on the blades) appears on 62 US grants and 52 published applications in this corpus.
Search patents in F03D- Granted patents
- 62
- Published applications
- 52
- Assignees
- 34
- Inventors
- 130
- Latest grant
- 24 Sep 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 2 |
| 2009 | 1 | 2 |
| 2010 | 0 | 4 |
| 2011 | 1 | 5 |
| 2012 | 3 | 5 |
| 2013 | 2 | 2 |
| 2014 | 3 | 3 |
| 2015 | 0 | 7 |
| 2016 | 2 | 3 |
| 2017 | 4 | 0 |
| 2018 | 2 | 2 |
| 2019 | 1 | 1 |
| 2020 | 2 | 0 |
| 2021 | 0 | 1 |
| 2022 | 2 | 8 |
| 2023 | 1 | 1 |
| 2024 | 5 | 1 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- System and method for installation of an open-sleeve add-on device on a wind turbine blade24 Sep 2024US 12,098,698 B2GE Infrastructure Technology LLC
- Method of shutting down a wind turbine28 May 2024US 11,994,105 B2Vestas Wind Systems A/S
- Detecting a wind turbine rotor blade adjustment fault21 May 2024US 11,988,194 B2Siemens Gamesa Renewable Energy A/S
- Stopping a wind turbine rotor using pre-set pitch rates16 Apr 2024US 11,959,460 B2Vestas Wind Systems A/S
- Controlling of segmented add-on members of a wind turbine blade5 Mar 2024US 11,920,564 B2Siemens Gamesa Renewable Energy A/S
- Wind turbine with blades including openings for controlling rotational speed30 Jan 2025US 2025/0035083 A1International Business Machines Corporation
- System and method for installation of an open-sleeve add-on device on a wind turbine blade18 Jan 2024US 2024/0018936 A1General Electric Company
- Device and method of controlling an operation of a wind turbine to reduce load at yaw misalignment13 Jul 2023US 2023/0220827 A1Siemens Gamesa Renewable Energy A/S
- A method for handling rotor unbalance of a wind turbine with hinged wind turbine blades29 Dec 2022US 2022/0412305 A1Vestas Wind Systems A/S
- Stopping a wind turbine rotor using pre-set pitch rates22 Dec 2022US 2022/0403822 A1Vestas Wind Systems A/S
Most cited
By later US patents
- Wind powered system for generating electricity147US 4,565,929 AThe Boeing Company · 1986
- Wind turbine rotor aileron86US 5,320,491 ANorthern Power Systems, Inc. · 1994
- Wind turbine blades67US 4,692,095 ASir Henry Lawson-Tancred, Sons & Co. Ltd. · 1987
- Advanced aerodynamic control system for a high output wind turbine67US 6,940,185 B2Advantek, Inc. · 2005
- Vertical axis wind turbine63US 4,247,253 AGakko Hojin Tokai University · 1981