F02C 3/073
The compressor and turbine stages being concentric
Official title: the compressor and turbine stages being concentric
F02C3/073 (The compressor and turbine stages being concentric) appears on 125 US grants and 138 published applications in this corpus.
Search patents in F02C- Granted patents
- 125
- Published applications
- 138
- Assignees
- 37
- Inventors
- 158
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 2 |
| 2004 | 2 | 0 |
| 2005 | 1 | 2 |
| 2006 | 1 | 6 |
| 2007 | 1 | 5 |
| 2008 | 1 | 17 |
| 2009 | 7 | 24 |
| 2010 | 2 | 1 |
| 2011 | 23 | 2 |
| 2012 | 6 | 7 |
| 2013 | 5 | 3 |
| 2014 | 4 | 2 |
| 2015 | 6 | 8 |
| 2016 | 2 | 6 |
| 2017 | 4 | 2 |
| 2018 | 8 | 5 |
| 2019 | 3 | 10 |
| 2020 | 9 | 15 |
| 2021 | 8 | 6 |
| 2022 | 5 | 2 |
| 2023 | 1 | 4 |
| 2024 | 4 | 4 |
| 2025 | 5 | 2 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Aircraft engine27 Aug 2026US 2026/0251093 A1ROLLS-ROYCE plc
- Gas turbine engine22 Jan 2026US 2026/0022671 A1ROLLS-ROYCE plc
- Aircraft engine1 Jan 2026US 2026/0002476 A1ROLLS-ROYCE plc
- Liquid propellant gasifier and pressurizer19 Jun 2025US 2025/0198367 A1
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Most cited
By later US patents
- Combination propulsion system for a flying craft92US 5,014,508 AMesserschmitt-Boelkow-Blohm GmbH · 1991
- Counter-rotating turbine engine including a gearbox91US 7,451,592 B2ROLLS-ROYCE plc · 2008
- Single rotor turbine engine75US 6,430,917 B1The Regents of the University of California · 2002
- Trifan powered VSTOL aircraft70US 3,972,490 AMcDonnell Douglas Corporation · 1976
- Combined air-hydrogen turbo-rocket power plant67US 5,012,640 ASociete Nationale d'Etude et de Construction de Moteurs D'Aviation "S.N.E.C.M A." · 1991