Flame port unit structure of combustion apparatus
US-11920783-B2 · Mar 5, 2024 · US
Preventing flame lift-off
Preventing flame lift-off · 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 | F23D14/74 |
| Official title | Preventing flame lift-off |
| Display label | Preventing flame lift-off |
| Total patents | 60 |
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 | 10 |
| 2016 | 8 |
| 2017 | 6 |
| 2018 | 8 |
| 2019 | 9 |
| 2020 | 7 |
| 2021 | 7 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Flame hole unit structure of combustion apparatus
US-11852337-B2 · Dec 26, 2023 · US
Totally aerated combustion burner
US-11578866-B2 · Feb 14, 2023 · US
Combustion system with perforated flame holder and swirl stabilized preheating flame
US-11415316-B2 · Aug 16, 2022 · US
Fluidic burner with heat stability
US-11313554-B2 · Apr 26, 2022 · US
Totally Aerated Combustion Burner
US-2021356123-A1 · Nov 18, 2021 · US
Totally Aerated Combustion Burner
US-2021348756-A1 · Nov 11, 2021 · US
Flame arrestor with fluid drainage capabilities
US-11168883-B2 · Nov 9, 2021 · US
Fuel combustion system with a perforated reaction holder
US-11156356-B2 · Oct 26, 2021 · US
Flame monitor
US-11105509-B2 · Aug 31, 2021 · US
Flame port unit structure of combustion apparatus
US-2021247067-A1 · Aug 12, 2021 · US
Porous flame holder for low NOx combustion
US-11047572-B2 · Jun 29, 2021 · US
Totally aerated combustion burner
US-10845088-B2 · Nov 24, 2020 · US
Flame hole unit structure of combustion apparatus
US-2020278113-A1 · Sep 3, 2020 · US
Flame Monitor
US-2020182463-A1 · Jun 11, 2020 · US
Nozzle structure for hydrogen gas burner apparatus
US-10648662-B2 · May 12, 2020 · US
Totally primary air combustion type of burner
US-10612774-B2 · Apr 7, 2020 · US
Fluidic burner with heat stability
US-2020080720-A1 · Mar 12, 2020 · US
Combustion system with perforated flame holder and swirl stablized preheating flame
US-2020056781-A1 · Feb 20, 2020 · US
Fuel combustion system with a perforated reaction holder
US-2019277492-A1 · Sep 12, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F23D14/74?
- CPC F23D14/74 is the Cooperative Patent Classification code for “Preventing flame lift-off.”
- How many patents are filed under CPC F23D14/74 (Preventing flame lift-off)?
- Our database includes 60 publications tagged with this CPC code.
- Is patent activity under CPC F23D14/74 growing?
- Publication counts under this code: 2 in 2023 vs 1 in 2024 (latest complete years).