F05B 2240/2021
By means of telescoping blades
Official title: by means of telescoping blades
F05B2240/2021 (By means of telescoping blades) appears on 33 US grants and 37 published applications in this corpus.
Search patents in F05B- Granted patents
- 33
- Published applications
- 37
- Assignees
- 15
- Inventors
- 66
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 6 |
| 2004 | 2 | 0 |
| 2005 | 2 | 3 |
| 2006 | 2 | 3 |
| 2007 | 0 | 2 |
| 2008 | 2 | 1 |
| 2009 | 3 | 1 |
| 2010 | 1 | 4 |
| 2011 | 0 | 0 |
| 2012 | 4 | 2 |
| 2013 | 1 | 0 |
| 2014 | 0 | 2 |
| 2015 | 0 | 2 |
| 2016 | 2 | 2 |
| 2017 | 0 | 1 |
| 2018 | 1 | 0 |
| 2019 | 2 | 2 |
| 2020 | 2 | 1 |
| 2021 | 1 | 1 |
| 2022 | 2 | 2 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Rotatable blade apparatus with individually adjustable blades10 Mar 2026US 12,571,370 B2Energyield LLC
- Extendable wind turbine blade30 Jan 2024US 11,885,293 B2Lm Wind Power A/S
- Power generation device15 Nov 2022US 11,499,521 B2
- Rotatable blade apparatus with individually adjustable blades27 Sep 2022US 11,454,212 B2Energyield LLC
- Bladeless wind turbine with a telescoping natural frequency tuning mechanism20 Apr 2021US 10,982,648 B2
- Hydroelectric power generation device and power generation method based on axial-flow hydraulic turbine1 Oct 2026US 2026/0298190 A1Hebei Water Conservancy Engr Bureau Group Limited
- Rotatable Blade Apparatus With Individually Adjustable Blades21 Dec 2023US 2023/0407840 A1Energyield LLC
- Extendable wind turbine blade13 Oct 2022US 2022/0325693 A1Lm Wind Power A/S
- Rotatable blade apparatus with individually adjustable blades19 May 2022US 2022/0154690 A1Energyield LLC
- Power generation device4 Mar 2021US 2021/0062782 A1
Most cited
By later US patents
- Variable diameter wind turbine rotor blades72US 6,972,498 B2General Electric Company · 2005
- Retractable rotor blades for power generating wind and ocean current turbines and means for operating below set rotor torque limits60US 6,726,439 B2Clipper Windpower Technology, Inc. · 2004
- Telescoping wind turbine blade40US 6,902,370 B2Energy Unlimited · 2005
- Extendable rotor blades for power generating wind and ocean current turbines within a module mounted atop a main blade32US 7,582,977 B1Clipper Windpower Technology, Inc. · 2009
- Propeller type windmill for power generation27US 6,752,595 B2Hitachi Zosen Corporation · 2004