F05B 2240/20
Rotors
F05B2240/20 (Rotors) appears on 3,028 US grants and 3,702 published applications in this corpus.
Search patents in F05B- Granted patents
- 3,028
- Published applications
- 3,702
- Assignees
- 1,144
- Inventors
- 5,131
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 18 | 0 |
| 1978 | 21 | 0 |
| 1979 | 12 | 0 |
| 1980 | 18 | 0 |
| 1981 | 23 | 0 |
| 1982 | 33 | 0 |
| 1983 | 27 | 0 |
| 1984 | 20 | 0 |
| 1985 | 14 | 0 |
| 1986 | 8 | 0 |
| 1987 | 15 | 0 |
| 1988 | 7 | 0 |
| 1989 | 12 | 0 |
| 1990 | 9 | 0 |
| 1991 | 7 | 0 |
| 1992 | 9 | 0 |
| 1993 | 10 | 0 |
| 1994 | 13 | 0 |
| 1995 | 12 | 0 |
| 1996 | 15 | 0 |
| 1997 | 8 | 0 |
| 1998 | 9 | 0 |
| 1999 | 13 | 0 |
| 2000 | 25 | 0 |
| 2001 | 17 | 3 |
| 2002 | 18 | 16 |
| 2003 | 14 | 25 |
| 2004 | 17 | 38 |
| 2005 | 22 | 48 |
| 2006 | 32 | 54 |
| 2007 | 32 | 88 |
| 2008 | 43 | 121 |
| 2009 | 42 | 167 |
| 2010 | 62 | 196 |
| 2011 | 108 | 242 |
| 2012 | 149 | 231 |
| 2013 | 141 | 167 |
| 2014 | 130 | 161 |
| 2015 | 84 | 154 |
| 2016 | 114 | 156 |
| 2017 | 131 | 228 |
| 2018 | 131 | 218 |
| 2019 | 207 | 228 |
| 2020 | 197 | 216 |
| 2021 | 184 | 240 |
| 2022 | 224 | 195 |
| 2023 | 179 | 168 |
| 2024 | 186 | 168 |
| 2025 | 133 | 100 |
| 2026 | 64 | 74 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F05B 2240/30Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energyIndexing code1,712
- F05B 2240/21For wind turbinesIndexing code1,250
- F05B 2240/24For turbinesIndexing code205
- F05B 2240/202With adjustable area of intercepted fluidIndexing code102
- F05B 2240/33Shrouds which are part of or which are rotating with the rotorIndexing code100
- F05B 2240/37Multiple rotorsIndexing code55
- F05B 2240/201Using the magnus-effectIndexing code23
Recent patents
- Hydraulic turbine29 Sep 2026US 12,747,716 B2Natel Energy Holdings, Inc.
- Method of manufacturing a wind turbine rotor blade part having an embedded placeholder29 Sep 2026US 12,747,718 B2Nordex Blade Technology Centre ApS
- Multiple blade wind turbine22 Sep 2026US 12,742,437 B2
- Method for manufacturing a preform building element and oven25 Aug 2026US 12,715,180 B2Siemens Gamsea Renewable Energy A/S
- Horizontally-oriented conical-helical hydrokinetic turbine11 Aug 2026US 12,704,105 B2
- Evaporator for ambient water bodies, and related system and method8 Oct 2026US 2026/0306964 A1Resource West, Inc.
- Hydroturbine piece of a turbine comprising a modified trailing edge8 Oct 2026US 2026/0309114 A1GE Renewable Technologies
- A method for mounting a wind turbine rotor blade to a hub8 Oct 2026US 2026/0309123 A1Vestas Wind Systems A/S
- Blade guiding apparatus8 Oct 2026US 2026/0309129 A1Vestas Wind Systems A/S
- 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
Most cited
By later US patents
- Heart assist device with expandable impeller pump411US 7,841,976 B2The Penn State Research Foundation · 2010
- Fan with collapsible blades, redundant fan system, and related method271US 6,860,713 B2Nidec Corporation · 2005
- Variable geometry guide vane for a gas turbine engine199US 7,632,064 B2United Technologies Corporation · 2009
- Serrated trailing edges for improving lift and drag characteristics of lifting surfaces173US 5,088,665 AThe United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 1992
- Low drag vortex generators156US 5,058,837 A1991