F03D 9/00
Adaptations of wind motors for special use
Official title: Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations (hybrid wind-photovoltaic energy systems for the generation of electric power H02S10/12)
F03D9/00 (Adaptations of wind motors for special use) appears on 4,536 US grants and 5,756 published applications in this corpus.
Search patents in F03D- Granted patents
- 4,536
- Published applications
- 5,756
- Assignees
- 1,577
- Inventors
- 7,881
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 19 | 0 |
| 1977 | 25 | 0 |
| 1978 | 24 | 0 |
| 1979 | 22 | 0 |
| 1980 | 23 | 0 |
| 1981 | 20 | 0 |
| 1982 | 30 | 0 |
| 1983 | 25 | 0 |
| 1984 | 32 | 0 |
| 1985 | 27 | 0 |
| 1986 | 17 | 0 |
| 1987 | 9 | 0 |
| 1988 | 15 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 9 | 0 |
| 1992 | 12 | 0 |
| 1993 | 14 | 0 |
| 1994 | 13 | 0 |
| 1995 | 13 | 0 |
| 1996 | 15 | 0 |
| 1997 | 9 | 0 |
| 1998 | 14 | 0 |
| 1999 | 9 | 0 |
| 2000 | 27 | 0 |
| 2001 | 26 | 7 |
| 2002 | 23 | 37 |
| 2003 | 30 | 63 |
| 2004 | 37 | 83 |
| 2005 | 56 | 80 |
| 2006 | 72 | 116 |
| 2007 | 80 | 130 |
| 2008 | 81 | 208 |
| 2009 | 87 | 210 |
| 2010 | 131 | 391 |
| 2011 | 174 | 384 |
| 2012 | 226 | 375 |
| 2013 | 236 | 338 |
| 2014 | 240 | 290 |
| 2015 | 233 | 409 |
| 2016 | 247 | 345 |
| 2017 | 281 | 263 |
| 2018 | 243 | 272 |
| 2019 | 248 | 251 |
| 2020 | 246 | 273 |
| 2021 | 214 | 250 |
| 2022 | 196 | 241 |
| 2023 | 171 | 224 |
| 2024 | 228 | 213 |
| 2025 | 204 | 185 |
| 2026 | 94 | 118 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F03D 9/20Wind motors characterised by the driven apparatus3,842
- F03D 9/10Combinations of wind motors with apparatus storing energy1,192
- F03D 9/30Wind motors specially adapted for installation in particular locations869
- F03D 9/007The wind motor being combined with means for converting solar radiation into426
- F03D 9/008The wind motor being combined with water energy converters148
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Most cited
By later US patents
- Islanding-operation prevention apparatus, and dispersed power generation apparatus and power generation system using the same282US 5,686,766 ACanon Kabushiki Kaisha · 1997
- Variable speed wind turbine with reduced power fluctuation and a static VAR mode of operation266US 5,225,712 AU.S. Windpower, Inc. · 1993
- Fluid powered electrical generator260US 4,720,640 ATurboStar, Inc. · 1988
- 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
- Variable speed wind turbine245US 5,083,039 AU.S. Windpower, Inc. · 1992