Fuel nozzle and swirler
US-2026071755-A1 · Mar 12, 2026 · US
Flame flashback
Flame flashback · 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 | F23D2209/10 |
| Official title | Flame flashback |
| Display label | Flame flashback |
| Total patents | 37 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 5 |
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 4 |
| 2020 | 4 |
| 2021 | 1 |
| 2022 | 6 |
| 2023 | 2 |
| 2024 | 3 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Gas turbine engine fuel nozzle having a secondary fuel passage through a swirler
US-12492819-B2 · Dec 9, 2025 · US
Total primary combustion burner
US-2025207773-A1 · Jun 26, 2025 · US
Hydrogen combustion burner
US-2025198615-A1 · Jun 19, 2025 · US
Fuel nozzle and swirler
US-2024401809-A1 · Dec 5, 2024 · US
System of preventing backflash in pre-mixed hydrogen burner and method thereof
US-2024302041-A1 · Sep 12, 2024 · US
Fuel nozzle and swirler
US-12085281-B2 · Sep 10, 2024 · US
Fuel nozzle and swirler
US-2023366551-A1 · Nov 16, 2023 · US
Fuel nozzle and combustor and gas turbine including the same
US-11662095-B2 · May 30, 2023 · US
Fuel nozzle with integrated metering and flashback system
US-11525403-B2 · Dec 13, 2022 · US
Water heater
US-11512871-B2 · Nov 29, 2022 · US
Fuel nozzle with integrated metering and flashback system
US-2022356845-A1 · Nov 10, 2022 · US
Pilot stabilized burner
US-2022205633-A1 · Jun 30, 2022 · US
Combustor and gas turbine
US-2022163200-A1 · May 26, 2022 · US
Fuel nozzle and combustor and gas turbine including the same
US-2022034511-A1 · Feb 3, 2022 · US
Fuel nozzle and combustor and gas turbine including the same
US-11181270-B2 · Nov 23, 2021 · US
Fuel nozzle assembly, and combustor and gas turbine including the same
US-10845055-B2 · Nov 24, 2020 · US
Gas fueled water heater appliance having a flame arrestor
US-10746398-B2 · Aug 18, 2020 · US
Gas turbine combustor, gas turbine, control device, and control method
US-10718522-B2 · Jul 21, 2020 · US
Water heater
US-2020217557-A1 · Jul 9, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F23D2209/10?
- CPC F23D2209/10 is the Cooperative Patent Classification code for “Flame flashback.”
- How many patents are filed under CPC F23D2209/10 (Flame flashback)?
- Our database includes 37 publications tagged with this CPC code.
- Is patent activity under CPC F23D2209/10 growing?
- Publication counts under this code: 3 in 2024 vs 3 in 2025 (latest complete years).