F01D 5/022
With concentric rows of axial blades
Official title: {with concentric rows of axial blades}
F01D5/022 (With concentric rows of axial blades) appears on 104 US grants and 113 published applications in this corpus.
Search patents in F01D- Granted patents
- 104
- Published applications
- 113
- Assignees
- 44
- Inventors
- 208
- Latest grant
- 9 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 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 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 0 |
| 2003 | 3 | 5 |
| 2004 | 2 | 1 |
| 2005 | 2 | 1 |
| 2006 | 3 | 3 |
| 2007 | 0 | 2 |
| 2008 | 0 | 9 |
| 2009 | 3 | 14 |
| 2010 | 2 | 2 |
| 2011 | 14 | 3 |
| 2012 | 4 | 6 |
| 2013 | 0 | 4 |
| 2014 | 6 | 6 |
| 2015 | 4 | 5 |
| 2016 | 4 | 3 |
| 2017 | 5 | 9 |
| 2018 | 4 | 4 |
| 2019 | 5 | 7 |
| 2020 | 8 | 7 |
| 2021 | 3 | 5 |
| 2022 | 2 | 5 |
| 2023 | 10 | 6 |
| 2024 | 6 | 3 |
| 2025 | 2 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fluid accelerator9 Sep 2025US 12,409,945 B2ESS 2 Tech, LLC
- Aircraft with an unducted fan propulsor12 Aug 2025US 12,384,522 B2General Electric Company
- Turbomachines and epicyclic gear assemblies with axially offset sun and ring gears3 Sep 2024US 12,078,075 B2GE Avio S. r. l.
- Adaptive vertical lift engine (AVLE) fan20 Aug 2024US 12,065,967 B2Rolls-Royce North American Technologies Inc.
- Turbine engine rotor element assembly equipped with a sealing device2 Jul 2024US 12,025,025 B2Safran Aircraft Engines
- Impeller12 Feb 2026US 2026/0043409 A1Beehive Industries, LLC
- Fluid accelerator1 Jan 2026US 2026/0001656 A1ESS 2 Tech, LLC
- Aircraft with an unducted fan propulsor6 Feb 2025US 2025/0042537 A1General Electric Company
- Fluid accelerator29 Aug 2024US 2024/0286757 A1ESS 2 Tech, LLC
- Rotor disk for a blade ring22 Aug 2024US 2024/0280029 A1
Most cited
By later US patents
- Single rotor turbine engine75US 6,430,917 B1The Regents of the University of California · 2002
- Blisk69US 6,454,535 B1General Electric Company · 2002
- Counterrotatable booster compressor assembly for a gas turbine engine53US 6,739,120 B2General Electric Company · 2004
- Hydraulic seal for a gearbox of a tip turbine engine52US 7,959,532 B2United Technologies Corporation · 2011
- Hybrid rotor blade51US 5,388,964 AGeneral Electric Company · 1995