F03D 80/50
Maintenance or repair
F03D80/50 (Maintenance or repair) appears on 824 US grants and 1,133 published applications in this corpus.
Search patents in F03D- Granted patents
- 824
- Published applications
- 1,133
- Assignees
- 298
- Inventors
- 1,776
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 2 |
| 2005 | 0 | 6 |
| 2006 | 1 | 7 |
| 2007 | 4 | 11 |
| 2008 | 5 | 8 |
| 2009 | 3 | 26 |
| 2010 | 16 | 51 |
| 2011 | 26 | 69 |
| 2012 | 37 | 65 |
| 2013 | 36 | 42 |
| 2014 | 40 | 58 |
| 2015 | 33 | 65 |
| 2016 | 45 | 37 |
| 2017 | 49 | 47 |
| 2018 | 37 | 51 |
| 2019 | 51 | 85 |
| 2020 | 57 | 77 |
| 2021 | 70 | 92 |
| 2022 | 65 | 66 |
| 2023 | 58 | 74 |
| 2024 | 72 | 72 |
| 2025 | 75 | 75 |
| 2026 | 37 | 46 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Refurbishing wind turbine generator stator winding with winding conversions22 Sep 2026US 12,744,437 B2Timken Gears & Services Inc.
- Systems, methods, and devices for facilitating removal of hydraulic cylinders from brake systems15 Sep 2026US 12,734,660 B1Inventus Holdings, LLC
- Auxiliary power system and control for rural and/or off grid wind turbines1 Sep 2026US 12,723,568 B2Siemens Gamesa Renewable Energy A/S
- Mounting equipment on wind turbine structures4 Aug 2026US 12,698,759 B2Subsea 7 Limited
- Installing equipment in offshore monopile foundations28 Jul 2026US 12,692,838 B2Seaway 7 Engineering B.V.
- Windblade repair adhesive and a process for use thereof8 Oct 2026US 2026/0308429 A1Illinois Tool Works Inc.
- Wind turbine blade assembly device for easy installation and removal in vertical position8 Oct 2026US 2026/0309127 A1CLS Wind LLC
- Apparatus and method for transporting a wind turbine component to and/or at an offshore wind turbine1 Oct 2026US 2026/0298204 A1Vestas Wind Systems A/S
- Method for replacing tension adjusting component used in a cable support assembly on a wind turbine1 Oct 2026US 2026/0298210 A1Vestas Wind Systems A/S
- Support Structure, a Wind Turbine Blade, a Wind Turbine and a Method17 Sep 2026US 2026/0275965 A1Ampelmann Holding B. V.
Most cited
By later US patents
- Low-speed directly driven wind turbine109US 6,285,090 B1Jeumont Industrie · 2001
- Integrated energy system90US 4,118,637 AUNEP3 Energy Systems Inc. · 1978
- Generator for a windmill, stator module for use in such a generator and use of such a generator77US 6,781,276 B1Bonus Enegy A/S · 2004
- Mobile renewable energy generator76US 7,105,940 B2General Electric Company · 2006
- Wind turbine having a direct-drive drivetrain68US 7,431,567 B1Northern Power Systems, Inc. · 2008