F23D 11/12
Characterised by the shape or arrangement of the outlets from the nozzle
Official title: characterised by the shape or arrangement of the outlets from the nozzle
F23D11/12 (Characterised by the shape or arrangement of the outlets from the nozzle) appears on 70 US grants and 45 published applications in this corpus.
Search patents in F23D- Granted patents
- 70
- Published applications
- 45
- Assignees
- 45
- Inventors
- 154
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 7 | 0 |
| 1982 | 4 | 0 |
| 1983 | 5 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 2 | 1 |
| 2004 | 0 | 4 |
| 2005 | 1 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 2 | 1 |
| 2009 | 2 | 0 |
| 2010 | 0 | 3 |
| 2011 | 0 | 2 |
| 2012 | 1 | 1 |
| 2013 | 2 | 4 |
| 2014 | 2 | 2 |
| 2015 | 2 | 3 |
| 2016 | 3 | 3 |
| 2017 | 2 | 7 |
| 2018 | 2 | 3 |
| 2019 | 1 | 0 |
| 2020 | 4 | 1 |
| 2021 | 3 | 1 |
| 2022 | 1 | 3 |
| 2023 | 3 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Gas turbine engine fuel injector with multiple fuel circuits10 Feb 2026US 12,546,469 B1Rtx Corporation
- Fuel injector assembly for a turbine engine23 Sep 2025US 12,422,142 B2Rtx Corporation
- Flow divider26 Sep 2023US 11,766,682 B2Hcm Co., Ltd.
- Burner, combustor including same, and gas turbine4 Jul 2023US 11,692,710 B2Mitsubishi Heavy Industries, Ltd.
- Fuel injector assembly for a turbine engine16 May 2023US 11,649,964 B2Raytheon Technologies Corporation
- Fuel nozzle and gas turbine engine4 Jun 2026US 2026/0153237 A1Mitsubishi Heavy Industries Aero Engines, Ltd.
- Fuel spray nozzle for a gas turbine engine12 Jun 2025US 2025/0189131 A1ROLLS-ROYCE plc
- Fuel injector assembly for a turbine engine8 Feb 2024US 2024/0044495 A1Rtx Corporation
- Flow divider15 Dec 2022US 2022/0395844 A1Hcm Co., Ltd.
- Fuel injector assembly for a turbine engine2 Jun 2022US 2022/0170636 A1Raytheon Technologies Corporation
Most cited
By later US patents
- Fuel injectors81US 4,327,547 AROLLS-ROYCE plc · 1982
- Burner for use with oil or gas56US 4,221,558 ASelas Corporation of America · 1980
- Combustor for gas turbine engine48US 4,763,481 ARuston Gas Turbines Limited · 1988
- Integrated, replaceable combustor swirler and fuel injector44US 4,216,652 AGeneral Motors Corporation · 1980
- Burner apparatus, submerged combustion melters including the burner, and methods of use37US 8,875,544 B22014