Gas turbine engine fuel injector with multiple fuel circuits
US-12546469-B1 · Feb 10, 2026 · US
characterised by the shape or arrangement of the outlets from the nozzle
characterised by the shape or arrangement of the outlets from the nozzle · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F23D11/12 |
| Official title | characterised by the shape or arrangement of the outlets from the nozzle |
| Display label | characterised by the shape or arrangement of the outlets from the nozzle |
| Total patents | 31 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 2 |
| 2017 | 8 |
| 2018 | 4 |
| 2019 | 1 |
| 2020 | 4 |
| 2021 | 4 |
| 2022 | 2 |
| 2023 | 1 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fuel spray nozzle for a gas turbine engine
US-2025189131-A1 · Jun 12, 2025 · US
Burner, combustor including same, and gas turbine
US-11692710-B2 · Jul 4, 2023 · US
Fluid nozzles and spacers
US-11486580-B2 · Nov 1, 2022 · US
Burner, combustor including same, and gas turbine
US-2022074347-A1 · Mar 10, 2022 · US
Fluid nozzles and spacers
US-2021231306-A1 · Jul 29, 2021 · US
Fuel injecting device
US-11060730-B2 · Jul 13, 2021 · US
Device and method for fuel injection using swirl burst injector
US-11020758-B2 · Jun 1, 2021 · US
Burner panels including dry-tip burners, submerged combustion melters, and methods
US-10955132-B2 · Mar 23, 2021 · US
Dual fuel nozzle with liquid filming atomization for a gas turbine engine
US-10794596-B2 · Oct 6, 2020 · US
Burner panels, submerged combustion melters, and methods
US-2020263870-A1 · Aug 20, 2020 · US
Burner panels, submerged combustion melters, and methods
US-10670261-B2 · Jun 2, 2020 · US
Combustor burner arrangement
US-10533748-B2 · Jan 14, 2020 · US
Fuel nozzle assembly
US-10458655-B2 · Oct 29, 2019 · US
Combustion system with injector assembly including aerodynamically-shaped body and/or ejection orifices
US-2018313535-A1 · Nov 1, 2018 · US
Burner panels including dry-tip burners, submerged combustion melters, and methods
US-2018313532-A1 · Nov 1, 2018 · US
Burner panels including dry-tip burners, submerged combustion melters, and methods
US-10041666-B2 · Aug 7, 2018 · US
Device and method for fuel injection using swirl burst injector
US-2018029054-A1 · Feb 1, 2018 · US
Fuel injecting device
US-2017321901-A1 · Nov 9, 2017 · US
Combustor burner arrangement
US-2017082289-A1 · Mar 23, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F23D11/12?
- CPC F23D11/12 is the Cooperative Patent Classification code for “characterised by the shape or arrangement of the outlets from the nozzle.”
- How many patents are filed under CPC F23D11/12 (characterised by the shape or arrangement of the outlets from the nozzle)?
- Our database includes 31 publications tagged with this CPC code.
- Is patent activity under CPC F23D11/12 growing?
- Publication counts under this code: 1 in 2023 vs 1 in 2025 (latest complete years).