F05D 2220/327
To drive shrouded, high solidity propeller
Official title: to drive shrouded, high solidity propeller
F05D2220/327 (To drive shrouded, high solidity propeller) appears on 209 US grants and 177 published applications in this corpus.
Search patents in F05D- Granted patents
- 209
- Published applications
- 177
- Assignees
- 58
- Inventors
- 417
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 9 | 0 |
| 1985 | 6 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 10 | 0 |
| 1996 | 6 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 5 | 7 |
| 2003 | 7 | 2 |
| 2004 | 3 | 6 |
| 2005 | 1 | 5 |
| 2006 | 3 | 6 |
| 2007 | 5 | 10 |
| 2008 | 4 | 8 |
| 2009 | 5 | 9 |
| 2010 | 5 | 11 |
| 2011 | 4 | 4 |
| 2012 | 13 | 2 |
| 2013 | 4 | 4 |
| 2014 | 3 | 8 |
| 2015 | 4 | 5 |
| 2016 | 2 | 15 |
| 2017 | 2 | 7 |
| 2018 | 12 | 12 |
| 2019 | 8 | 12 |
| 2020 | 14 | 11 |
| 2021 | 15 | 7 |
| 2022 | 7 | 6 |
| 2023 | 6 | 4 |
| 2024 | 5 | 2 |
| 2025 | 1 | 6 |
| 2026 | 3 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Air moving devices, aerodynamic rotor, and methods3 Mar 2026US 12,565,896 B2Whisper Aero Inc.
- Air-moving device with single-part rotor and methods30 Dec 2025US 12,510,089 B2Whisper Aero Inc.
- Selective power distribution for an aircraft propulsion system29 Oct 2024US 12,129,802 B2Rtx Corporation
- Air system for aircraft propulsion system electric machine13 Aug 2026US 2026/0235075 A1Rtx Corporation
- Aeronautical propulsion system13 Aug 2026US 2026/0240026 A1Safran Aircraft Engines
- Aeronautical propulsion system having improved propulsion efficiency23 Jul 2026US 2026/0208869 A1Safran Aircraft Engines
- More compact aircraft propulsion system23 Jul 2026US 2026/0210297 A1Safran Aircraft Engines
- Aeronautical propulsion system with improved propulsion efficiency23 Jul 2026US 2026/0210315 A1Safran Aircraft Engines
Most cited
By later US patents
- Nested core gas turbine engine195US 7,219,490 B2D-Star Engineering · 2007
- Gas turbine engine fan cooled heat exchanger161US 5,269,135 AGeneral Electric Company · 1993
- Low noise fan assembly119US 5,169,288 AGeneral Electric Company · 1992
- Turbine engine with intercooler in bypass air passage118US 6,134,880 AConcepts ETI, Inc. · 2000
- Aft FLADE engine102US 7,216,475 B2General Electric Company · 2007