F03D 7/02
The wind motors having rotation axis substantially parallel to the air flow
Official title: the wind motors having rotation axis substantially parallel to the air flow entering the rotor
F03D7/02 (The wind motors having rotation axis substantially parallel to the air flow) appears on 4,020 US grants and 4,841 published applications in this corpus.
Search patents in F03D- Granted patents
- 4,020
- Published applications
- 4,841
- Assignees
- 951
- Inventors
- 6,042
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 5 | 0 |
| 1978 | 10 | 0 |
| 1979 | 8 | 0 |
| 1980 | 13 | 0 |
| 1981 | 13 | 0 |
| 1982 | 29 | 0 |
| 1983 | 11 | 0 |
| 1984 | 17 | 0 |
| 1985 | 16 | 0 |
| 1986 | 9 | 0 |
| 1987 | 17 | 0 |
| 1988 | 7 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 2 | 0 |
| 1992 | 6 | 0 |
| 1993 | 7 | 0 |
| 1994 | 6 | 0 |
| 1995 | 3 | 0 |
| 1996 | 6 | 0 |
| 1997 | 5 | 0 |
| 1998 | 5 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 9 | 1 |
| 2002 | 6 | 14 |
| 2003 | 15 | 26 |
| 2004 | 13 | 51 |
| 2005 | 39 | 34 |
| 2006 | 37 | 56 |
| 2007 | 43 | 88 |
| 2008 | 50 | 104 |
| 2009 | 61 | 181 |
| 2010 | 89 | 276 |
| 2011 | 170 | 314 |
| 2012 | 227 | 299 |
| 2013 | 166 | 293 |
| 2014 | 186 | 276 |
| 2015 | 169 | 319 |
| 2016 | 197 | 211 |
| 2017 | 252 | 216 |
| 2018 | 223 | 243 |
| 2019 | 248 | 263 |
| 2020 | 260 | 291 |
| 2021 | 254 | 288 |
| 2022 | 260 | 304 |
| 2023 | 238 | 248 |
| 2024 | 297 | 204 |
| 2025 | 204 | 145 |
| 2026 | 94 | 96 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F03D 7/04Automatic control1,908
- F03D 7/022Adjusting aerodynamic properties of the blades1,618
- F03D 7/028Controlling wind motor output power1,051
- F03D 7/0204For orientation in relation to wind direction606
- F03D 7/0264For stopping403
- F03D 7/0272By measures acting on the electrical generator373
- F03D 7/0296To prevent, counteract or reduce noise emissions369
- F03D 7/0276Controlling rotor speed367
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Most cited
By later US patents
- Fail-safe actuation system926US 9,239,064 B2Moog Inc. · 2016
- Performance optimization controller and control method for doubly-fed machines427US 5,798,631 AState of Oregon acting by and through the State Board of Higher Education on behalf of Oregon State University · 1998
- Intelligent control with hierarchical stacked neural networks273US 9,015,093 B12015
- Variable speed wind turbine with reduced power fluctuation and a static VAR mode of operation266US 5,225,712 AU.S. Windpower, Inc. · 1993
- System, method and computer program product for enhancing commercial value of electrical power produced from a renewable energy power production facility260US 6,512,966 B2ABB AB · 2003