F01D 5/021
For flow machines or engines with only one axial stage
Official title: {for flow machines or engines with only one axial stage (for more than one stage F01D5/06)}
F01D5/021 (For flow machines or engines with only one axial stage) appears on 90 US grants and 96 published applications in this corpus.
Search patents in F01D- Granted patents
- 90
- Published applications
- 96
- Assignees
- 55
- Inventors
- 222
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 3 |
| 2006 | 1 | 0 |
| 2007 | 2 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 2 | 2 |
| 2015 | 1 | 9 |
| 2016 | 1 | 11 |
| 2017 | 3 | 5 |
| 2018 | 9 | 5 |
| 2019 | 8 | 3 |
| 2020 | 6 | 9 |
| 2021 | 4 | 5 |
| 2022 | 7 | 6 |
| 2023 | 5 | 10 |
| 2024 | 8 | 7 |
| 2025 | 11 | 6 |
| 2026 | 7 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Turbine assembly of an axial-flow turbine and axial-flow turbine22 Sep 2026US 12,742,397 B2Doosan šKoda Power A.S.
- Damping system for an integrally bladed rotor8 Sep 2026US 12,729,628 B2Rtx Corporation
- Rotor assembly having a closure group of rotor blades with fixturing and alignment features4 Aug 2026US 12,698,712 B1GE Vernova Infrastructure Technology LLC
- Propeller assembly7 Jul 2026US 12,674,393 B1PARTS KOREA Co., Ltd
- Rotor assembly with independent platforms and method for assembling such a rotor20 Aug 2026US 2026/0243168 A1
- Turbofan engine including a fan actuation system6 Aug 2026US 2026/0226835 A1General Electric Company
- Aero-propulsion system with improved propulsion efficiency9 Jul 2026US 2026/0192930 A1Safran Aircraft Engines
- Rotor element for a turbine engine with composite blades linked to a metal disk2 Jul 2026US 2026/0185450 A1Safran Aircraft Engines
- Gas turbine engine rotor stage with seal members and disk with retaining feature2 Jul 2026US 2026/0185454 A1Pratt & Whitney Canada Corp.
Most cited
By later US patents
- Multiple section rotor disc36US 4,102,603 AGeneral Electric Company · 1978
- Natural frequency tuning of gas turbine engine blades31US 7,252,481 B2Pratt & Whitney Canada Corp. · 2007
- Self-tightening rotor28US 9,057,273 B2Sz Dji Technology Co., Ltd. · 2015
- High strength composite reinforced turbomachinery disk26US 6,213,720 B1AlliedSignal Inc. · 2001
- Heated inlet guide vane25US 10,113,444 B2United Technologies Corporation · 2018