F03D 1/02
Wind motors with rotation axis substantially parallel to the air flow entering
Official title: having a plurality of rotors
F03D1/02 (Wind motors with rotation axis substantially parallel to the air flow entering) appears on 386 US grants and 541 published applications in this corpus.
Search patents in F03D- Granted patents
- 386
- Published applications
- 541
- Assignees
- 155
- Inventors
- 681
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 2 |
| 2002 | 2 | 4 |
| 2003 | 2 | 5 |
| 2004 | 5 | 6 |
| 2005 | 6 | 14 |
| 2006 | 9 | 11 |
| 2007 | 6 | 10 |
| 2008 | 2 | 18 |
| 2009 | 8 | 25 |
| 2010 | 11 | 42 |
| 2011 | 6 | 36 |
| 2012 | 14 | 44 |
| 2013 | 17 | 33 |
| 2014 | 28 | 32 |
| 2015 | 24 | 40 |
| 2016 | 21 | 28 |
| 2017 | 31 | 15 |
| 2018 | 16 | 37 |
| 2019 | 21 | 18 |
| 2020 | 24 | 31 |
| 2021 | 20 | 22 |
| 2022 | 22 | 18 |
| 2023 | 13 | 21 |
| 2024 | 16 | 14 |
| 2025 | 14 | 9 |
| 2026 | 5 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
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- Method of operating a multi-rotor wind turbine and related system27 Aug 2026US 2026/0251121 A1Vestas Wind Systems A/S
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- Wind power system11 Jun 2026US 2026/0160233 A1
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Most cited
By later US patents
- Wind turbine131US 4,140,433 A1979
- Machine for converting wind energy to electrical energy126US 5,506,453 A1996
- Wind energy conversion system108US 7,098,552 B2WECS, Inc. · 2006
- Wind energy conversion system107US 6,952,058 B2WECS, Inc. · 2005
- Wind energy conversion system105US 7,116,006 B2WECS, Inc. · 2006