F23R 3/54
Reverse-flow combustion chambers
F23R3/54 (Reverse-flow combustion chambers) appears on 244 US grants and 228 published applications in this corpus.
Search patents in F23R- Granted patents
- 244
- Published applications
- 228
- Assignees
- 76
- Inventors
- 508
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 4 | 0 |
| 1996 | 6 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 6 |
| 2003 | 2 | 0 |
| 2004 | 3 | 3 |
| 2005 | 4 | 8 |
| 2006 | 4 | 7 |
| 2007 | 6 | 13 |
| 2008 | 3 | 5 |
| 2009 | 7 | 3 |
| 2010 | 2 | 10 |
| 2011 | 5 | 8 |
| 2012 | 6 | 20 |
| 2013 | 8 | 21 |
| 2014 | 12 | 22 |
| 2015 | 16 | 18 |
| 2016 | 14 | 15 |
| 2017 | 12 | 13 |
| 2018 | 17 | 8 |
| 2019 | 7 | 5 |
| 2020 | 11 | 7 |
| 2021 | 8 | 5 |
| 2022 | 4 | 8 |
| 2023 | 6 | 3 |
| 2024 | 6 | 4 |
| 2025 | 9 | 8 |
| 2026 | 9 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Combustion module for a turbomachine6 Oct 2026US 12,753,925 B2Safran Ceramics
- Inspection port for an attritable engine support structure7 Apr 2026US 12,595,907 B2Rtx Corporation
- Turbine case structure for an aircraft propulsion system engine3 Mar 2026US 12,565,846 B1Pratt & Whitney Canada Corp.
- Additively manufactured combustor liner v-band cooling ring17 Feb 2026US 12,553,608 B1Pratt & Whitney Canada Corp.
- Cooling nozzle vanes of a turbine engine10 Feb 2026US 12,546,227 B2Rtx Corporation
- Differential cooling in a small combustor27 Aug 2026US 2026/0251302 A1GE Avio S. r. l.
- Inspection port for an attritable engine support structure20 Aug 2026US 2026/0243423 A1Rtx Corporation
- Additively Manufactured Annular Fuel Manifold6 Aug 2026US 2026/0226861 A1
- Gas turbine engine including flow turning combustor23 Jul 2026US 2026/0210547 A1General Electric Company
- Flow Assisted Integral Splash Plate23 Jul 2026US 2026/0210548 A1Rtx Corporation
Most cited
By later US patents
- Star combustor with dilution ports in can portions109US 5,628,182 A1997
- Convectively cooled, single stage, fully premixed fuel/air combustor for gas turbine engine modules101US 5,572,862 A1996
- Lean-staged pyrospin combustor92US 7,302,801 B2Hamilton Sundstrand Corporation · 2007
- Convectively cooled, single stage, fully premixed controllable fuel/air combustor with tangential admission86US 5,765,363 A1998
- Design of adiabatic combustors82US 6,826,912 B2Yeshayahou Levy · 2004