F05D 2240/30
Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy
Official title: Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
F05D2240/30 (Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy) appears on 3,264 US grants and 3,756 published applications in this corpus.
Search patents in F05D- Granted patents
- 3,264
- Published applications
- 3,756
- Assignees
- 537
- Inventors
- 5,399
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 0 | 0 |
| 1980 | 5 | 0 |
| 1981 | 5 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 3 | 0 |
| 1987 | 7 | 0 |
| 1988 | 3 | 0 |
| 1989 | 8 | 0 |
| 1990 | 5 | 0 |
| 1991 | 1 | 0 |
| 1992 | 8 | 0 |
| 1993 | 7 | 0 |
| 1994 | 7 | 0 |
| 1995 | 4 | 0 |
| 1996 | 6 | 0 |
| 1997 | 10 | 0 |
| 1998 | 4 | 0 |
| 1999 | 12 | 0 |
| 2000 | 12 | 0 |
| 2001 | 9 | 4 |
| 2002 | 14 | 6 |
| 2003 | 7 | 15 |
| 2004 | 18 | 17 |
| 2005 | 12 | 33 |
| 2006 | 19 | 35 |
| 2007 | 24 | 45 |
| 2008 | 26 | 61 |
| 2009 | 32 | 58 |
| 2010 | 54 | 77 |
| 2011 | 41 | 75 |
| 2012 | 77 | 71 |
| 2013 | 65 | 141 |
| 2014 | 68 | 118 |
| 2015 | 86 | 149 |
| 2016 | 101 | 396 |
| 2017 | 122 | 314 |
| 2018 | 211 | 336 |
| 2019 | 365 | 313 |
| 2020 | 390 | 366 |
| 2021 | 302 | 251 |
| 2022 | 341 | 218 |
| 2023 | 239 | 205 |
| 2024 | 221 | 187 |
| 2025 | 196 | 151 |
| 2026 | 97 | 114 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F05D 2240/303Related to the leading edge of a rotor bladeIndexing code900
- F05D 2240/304Related to the trailing edge of a rotor bladeIndexing code753
- F05D 2240/307Related to the tip of a rotor bladeIndexing code716
- F05D 2240/301Cross-sectional characteristicsIndexing code498
- F05D 2240/305Related to the pressure side of a rotor bladeIndexing code256
- F05D 2240/306Related to the suction side of a rotor bladeIndexing code252
- F05D 2240/302Characteristics related to shock waves, transonic or supersonic flowIndexing code54
- F05D 2240/31With roughened surfacesIndexing code38
Recent patents
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- Damper assembly29 Sep 2026US 12,747,668 B1GE Avio S. r. l.
- Method for attaching a metal reinforcement on a leading edge of a turbomachine blade8 Oct 2026US 2026/0307338 A1Safran Aerospace Composites
- Turbine engine rotor blade with tip shelf8 Oct 2026US 2026/0309032 A1Rtx Corporation
- Turbine engine component with a cooling aperture8 Oct 2026US 2026/0309034 A1
- Turbine engine having an airfoil with a set of cooling holes8 Oct 2026US 2026/0309035 A1
- Impeller with converging inducer8 Oct 2026US 2026/0309161 A1Pratt & Whitney Canada Corp.
Most cited
By later US patents
- Expandable impeller pump391US 7,393,181 B2Datascope Investment Corp. · 2008
- Low solidity turbofan352US 7,374,403 B2General Electric Company · 2008
- Wide chord fan blade334US 5,141,400 AGeneral Electric Company · 1992
- Expandable impeller pump296US 7,927,068 B2The Penn State Research Foundation · 2011
- Enhanced performance fan with the use of winglets282US 6,517,315 B2Hewlett-Packard Company · 2003