Modular pressurized coal combustion plant (mccp) for flexible generation
US-2025207772-A1 · Jun 26, 2025 · US
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Steam boilers of fire-tube type, i.e. the flue gas from a combustion chamber outside the boiler body flowing through tubes built-in in the boiler body
Steam boilers of fire-tube type, i.e. the flue gas from a combustion chamber outside the boiler body flowing through tubes built-in in the boiler body · 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 | F22B9/00 |
| Official title | Steam boilers of fire-tube type, i.e. the flue gas from a combustion chamber outside the boiler body flowing through tubes built-in in the boiler body |
| Display label | Steam boilers of fire-tube type, i.e. the flue gas from a combustion chamber outside the boiler body flowing through tubes built-in in the boiler body |
| Total patents | 14 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2017 | 1 |
| 2018 | 3 |
| 2019 | 3 |
| 2020 | 2 |
| 2021 | 2 |
| 2022 | 1 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Modular pressurized coal combustion (MPCC) for flexible generation
US-12222101-B2 · Feb 11, 2025 · US
Oxidative coupling of methane for olefin production
US-11505514-B2 · Nov 22, 2022 · US
Oxidative coupling of methane for olefin production
US-2021094892-A1 · Apr 1, 2021 · US
Modular pressurized coal combustion (mpcc) for flexible generation
US-2021025585-A1 · Jan 28, 2021 · US
Oxidative coupling of methane for olefin production
US-10870611-B2 · Dec 22, 2020 · US
Oxidative coupling of methane for olefin production
US-2020189994-A1 · Jun 18, 2020 · US
Combustion burner and boiler provided with same
US-10458645-B2 · Oct 29, 2019 · US
Oxidative coupling of methane for olefin production
US-10407361-B2 · Sep 10, 2019 · US
Method for generating a stress reduction in erected tube walls of a steam generator
US-10273551-B2 · Apr 30, 2019 · US
Oxidative coupling of methane for olefin production
US-2018327334-A1 · Nov 15, 2018 · US
Oxidative coupling of methane for olefin production
US-9944573-B2 · Apr 17, 2018 · US
Combustion burner and boiler provided with same
US-2018045403-A1 · Feb 15, 2018 · US
Oxidative coupling of methane for olefin production
US-2017297975-A1 · Oct 19, 2017 · US