Compact flame-curtain burner
US-12455074-B2 · Oct 28, 2025 · US
for spreading the flame over an area, e.g. for desurfacing of solid material, for surface hardening or for heating workpieces
for spreading the flame over an area, e.g. for desurfacing of solid material, for surface hardening or for heating workpieces · 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 | F23D14/56 |
| Official title | for spreading the flame over an area, e.g. for desurfacing of solid material, for surface hardening or for heating workpieces |
| Display label | for spreading the flame over an area, e.g. for desurfacing of solid material, for surface hardening or for heating workpieces |
| Total patents | 43 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2016 | 6 |
| 2017 | 7 |
| 2018 | 7 |
| 2019 | 3 |
| 2020 | 6 |
| 2021 | 3 |
| 2022 | 3 |
| 2024 | 3 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Burners and additive manufacturing methods
US-12372232-B2 · Jul 29, 2025 · US
Gas adjusting device and combustion assembly
US-2025102142-A1 · Mar 27, 2025 · US
Burning device for combustion calorimetry and combustion analysis of polymeric materials
US-12215858-B2 · Feb 4, 2025 · US
Burning device for combustion calorimetry and combustion analysis of polymeric materials
US-2025012438-A1 · Jan 9, 2025 · US
Flame arrestors and methods of making flame arrestors
US-12013116-B2 · Jun 18, 2024 · US
Burners and additive manufacturing methods
US-2024133547-A1 · Apr 25, 2024 · US
Burners and additive manufacturing methods
US-11898748-B2 · Feb 13, 2024 · US
Flame arrestors and methods of making flame arrestors
US-2022275934-A1 · Sep 1, 2022 · US
Fluidic burner with heat stability
US-11313554-B2 · Apr 26, 2022 · US
Compact flame-curtain burner
US-2022120438-A1 · Apr 21, 2022 · US
Burners and additive manufacturing methods
US-2021404652-A1 · Dec 30, 2021 · US
Burner
US-11199323-B2 · Dec 14, 2021 · US
Plasma pilot
US-11060720-B2 · Jul 13, 2021 · US
Oxygen-enriched burner and method for heating using oxygen-enriched burner
US-2020363059-A1 · Nov 19, 2020 · US
Combustion apparatus
US-10767901-B2 · Sep 8, 2020 · US
Oxygen enriched burner and heating method using oxygen enriched burner
US-2020182461-A1 · Jun 11, 2020 · US
Burner
US-2020088404-A1 · Mar 19, 2020 · US
Fluidic burner with heat stability
US-2020080720-A1 · Mar 12, 2020 · US
Double-staged oxy-fuel burner
US-10584051-B2 · Mar 10, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F23D14/56?
- CPC F23D14/56 is the Cooperative Patent Classification code for “for spreading the flame over an area, e.g. for desurfacing of solid material, for surface hardening or for heating workpieces.”
- How many patents are filed under CPC F23D14/56 (for spreading the flame over an area, e.g. for desurfacing of solid material, for surface hardening or for heating workpieces)?
- Our database includes 43 publications tagged with this CPC code.
- Is patent activity under CPC F23D14/56 growing?
- Publication counts under this code: 3 in 2024 vs 5 in 2025 (latest complete years).