Radiant tube
US-12435873-B2 · Oct 7, 2025 · US
Combustion apparatus characterised by the shape of the combustion chamber
Combustion apparatus characterised by the shape of the combustion chamber · 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 | F23C3/00 |
| Official title | Combustion apparatus characterised by the shape of the combustion chamber |
| Display label | Combustion apparatus characterised by the shape of the combustion chamber |
| Total patents | 51 |
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 | 4 |
| 2016 | 10 |
| 2017 | 3 |
| 2018 | 6 |
| 2019 | 9 |
| 2020 | 3 |
| 2021 | 3 |
| 2022 | 7 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Combustor
US-2024360995-A1 · Oct 31, 2024 · US
Frustoconical combustion chamber for a fluid heating device and methods for making the same
US-11906159-B2 · Feb 20, 2024 · US
Method for transferring the heat contained in a gas, and heat exchanger for this purpose
US-11802715-B2 · Oct 31, 2023 · US
Flow channel cap plate and combustion chamber assembly including the same
US-11692739-B2 · Jul 4, 2023 · US
Radiant tube
US-2023071781-A1 · Mar 9, 2023 · US
Supercritical CO2 boiler capable of realizing uniform combustion, corrosion resistance and coking resistance, and boiler system
US-11493202-B2 · Nov 8, 2022 · US
Scroll heating device
US-11480133-B2 · Oct 25, 2022 · US
Frustoconical combustion chamber for a fluid heating device and methods for making the same
US-2022146091-A1 · May 12, 2022 · US
Scroll heating device
US-2022136456-A1 · May 5, 2022 · US
Supercritical co2 boiler capable of realizing uniform combustion, corrosion resistance and coking resistance, and boiler system
US-2022090782-A1 · Mar 24, 2022 · US
Frustoconical combustion chamber for a fluid heating device and methods for making the same
US-11236902-B2 · Feb 1, 2022 · US
Flow channel cap plate and combustion chamber assembly including the same
US-2022026109-A1 · Jan 27, 2022 · US
Heat exchanger, radiant tube type heating device, and method of manufacturing heat exchanger
US-11209225-B2 · Dec 28, 2021 · US
Frustoconical combustion chamber for a fluid heating device and methods for making the same
US-2021332976-A1 · Oct 28, 2021 · US
Film temperature optimizer for fired process heaters
US-11105500-B2 · Aug 31, 2021 · US
Method for transferring the heat contained in a gas, and heat exchanger for this purpose
US-2020217561-A1 · Jul 9, 2020 · US
Film temperature optimizer for fired process heaters
US-2020141569-A1 · May 7, 2020 · US
Film temperature optimizer for fired process heaters
US-10551053-B2 · Feb 4, 2020 · US
3D non-axisymmetric combustor liner
US-10514171-B2 · Dec 24, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F23C3/00?
- CPC F23C3/00 is the Cooperative Patent Classification code for “Combustion apparatus characterised by the shape of the combustion chamber.”
- How many patents are filed under CPC F23C3/00 (Combustion apparatus characterised by the shape of the combustion chamber)?
- Our database includes 51 publications tagged with this CPC code.
- Is patent activity under CPC F23C3/00 growing?
- Publication counts under this code: 2 in 2024 vs 1 in 2025 (latest complete years).