F23R 3/08
Between annular flame tube sections
Official title: between annular flame tube sections, e.g. flame tubes with telescopic sections
F23R3/08 (Between annular flame tube sections) appears on 119 US grants and 85 published applications in this corpus.
Search patents in F23R- Granted patents
- 119
- Published applications
- 85
- Assignees
- 44
- Inventors
- 245
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 6 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 2 |
| 2002 | 5 | 7 |
| 2003 | 3 | 0 |
| 2004 | 2 | 1 |
| 2005 | 1 | 3 |
| 2006 | 2 | 2 |
| 2007 | 2 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 3 |
| 2011 | 1 | 1 |
| 2012 | 1 | 1 |
| 2013 | 2 | 4 |
| 2014 | 2 | 4 |
| 2015 | 5 | 5 |
| 2016 | 3 | 8 |
| 2017 | 1 | 3 |
| 2018 | 3 | 4 |
| 2019 | 7 | 5 |
| 2020 | 5 | 7 |
| 2021 | 5 | 5 |
| 2022 | 11 | 8 |
| 2023 | 8 | 7 |
| 2024 | 6 | 2 |
| 2025 | 1 | 0 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Combustor for a gas turbine engine having a looped feature25 Aug 2026US 12,716,590 B2General Electric Company
- Combustor for a gas turbine engine17 Mar 2026US 12,578,095 B2General Electric Company
- Multi-walled structure for a gas turbine engine10 Mar 2026US 12,571,536 B2Rtx Corporation
- Combustor for a gas turbine engine9 Dec 2025US 12,492,821 B2General Electric Company
- Combustor for a gas turbine engine26 Nov 2024US 12,152,777 B2General Electric Company
- Multi-walled structure for a gas turbine engine11 Jun 2026US 2026/0160419 A1Rtx Corporation
- Combustor for a gas turbine engine12 Dec 2024US 2024/0410586 A1General Electric Company
- Combustor for a gas turbine engine25 Jul 2024US 2024/0247807 A1General Electric Company
- Combustor for a gas turbine engine28 Dec 2023US 2023/0417415 A1General Electric Company
- Combustor with a variable primary zone combustion chamber10 Aug 2023US 2023/0250961 A1General Electric Company
Most cited
By later US patents
- Low emissions combustor103US 5,123,248 AGeneral Electric Company · 1992
- Topping combustor for low oxygen vitiated air streams101US 5,950,417 AFoster Wheeler Energy International, Inc. · 1999
- Combustors81US 4,700,544 AUnited Technologies Corporation · 1987
- Combuster liner construction for gas turbine engine78US 4,302,941 AUnited Technologies Corporation · 1981
- Turbojet engine combustion chamber with a double wall converging zone71US 4,901,522 ASociete Nationale d'Etude et de Construction de Moteurs D'Aviation "S.N.E.C.M A." · 1990