F01D 5/03
Annular blade-carrying members having blades on the inner periphery of the annulus
Official title: Annular blade-carrying members having blades on the inner periphery of the annulus and extending inwardly radially, i.e. inverted rotors
F01D5/03 (Annular blade-carrying members having blades on the inner periphery of the annulus) appears on 80 US grants and 87 published applications in this corpus.
Search patents in F01D- Granted patents
- 80
- Published applications
- 87
- Assignees
- 31
- Inventors
- 164
- Latest grant
- 10 Sep 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 2 | 5 |
| 2004 | 4 | 2 |
| 2005 | 0 | 3 |
| 2006 | 0 | 4 |
| 2007 | 2 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 2 |
| 2010 | 0 | 9 |
| 2011 | 1 | 0 |
| 2012 | 6 | 1 |
| 2013 | 1 | 2 |
| 2014 | 3 | 1 |
| 2015 | 0 | 2 |
| 2016 | 3 | 1 |
| 2017 | 0 | 1 |
| 2018 | 0 | 6 |
| 2019 | 6 | 21 |
| 2020 | 13 | 6 |
| 2021 | 12 | 7 |
| 2022 | 8 | 3 |
| 2023 | 5 | 4 |
| 2024 | 5 | 2 |
| 2025 | 0 | 0 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Ferrule for counter-rotating turbine impeller10 Sep 2024US 12,085,014 B2Safran Aircraft Engines
- Geometric approach to stress reduced intra-flow path shrouds for tuning modal responses in ram air turbine rotors2 Jul 2024US 12,025,026 B2Honeywell International Inc.
- Gas turbine engine having a tie rod11 Jun 2024US 12,006,834 B1General Electric Company
- System for controlling blade clearances within a gas turbine engine7 May 2024US 11,976,562 B2General Electric Company
- Turbomachine including a rotor connected to a plurality of blades having an arm and a seal30 Jan 2024US 11,885,237 B2GE Avio S. r. l.
- An arc reaction engine and method of use20 Aug 2026US 2026/0243170 A1Ace Vtol Pty Ltd
- Oblong turbine25 Jun 2026US 2026/0176975 A1
- Turbine engine system7 May 2026US 2026/0125981 A1Heleng Inc.
- Geometric approach to stress reduced intra-flow path shrouds for tuning modal responses in ram air turbine rotors21 Mar 2024US 2024/0093609 A1Honeywell International Inc.
- Improved ferrule for counter-rotating turbine impeller21 Mar 2024US 2024/0093638 A1Safran Aircraft Engines
Most cited
By later US patents
- Counter rotating aircraft gas turbine engine with high overall pressure ratio compressor248US 6,732,502 B2General Electric Company · 2004
- Aircraft gas turbine engine having variable torque split counter rotating low pressure turbines and booster aft of counter rotating fans115US 6,763,654 B2General Electric Company · 2004
- Geared differential speed counter-rotatable low pressure turbine106US 8,191,352 B2General Electric Company · 2012
- Hybrid propulsive engine including at least one independently rotatable propeller/fan58US 8,099,944 B2The Invention Science Fund I, LLC · 2012
- Contra-rotating rotors with differential gearing56US 4,159,624 A1979