Coal nozzle with a flow constriction
US-2020309363-A1 · Oct 1, 2020 · US
Fuel flow guiding devices
Fuel flow guiding devices · 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 | F23D2201/20 |
| Official title | Fuel flow guiding devices |
| Display label | Fuel flow guiding devices |
| Total patents | 99 |
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 | 12 |
| 2016 | 10 |
| 2017 | 12 |
| 2018 | 12 |
| 2019 | 6 |
| 2020 | 15 |
| 2021 | 10 |
| 2022 | 12 |
| 2023 | 3 |
| 2024 | 5 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Solid fuel burner
US-10731850-B2 · Aug 4, 2020 · US
Coal nozzle assembly for a steam generation apparatus
US-2020232638-A1 · Jul 23, 2020 · US
Combustion burner and boiler equipped with the same
US-10677457-B2 · Jun 9, 2020 · US
Burner and fine solids feeding apparatus for a burner
US-10655842-B2 · May 19, 2020 · US
Coal nozzle assembly comprising two flow channels
US-10648661-B2 · May 12, 2020 · US
Burner, combustion device, boiler, and burner control method
US-10591156-B2 · Mar 17, 2020 · US
Combustion burner and boiler
US-10591154-B2 · Mar 17, 2020 · US
System and method for increasing the concentration of pulverized fuel in a power plant
US-10473327-B2 · Nov 12, 2019 · US
Combustion burner and boiler provided with same
US-10458645-B2 · Oct 29, 2019 · US
Pulverized fuel-oxygen burner
US-10371377-B2 · Aug 6, 2019 · US
Biomass-mixed, pulverized coal-fired burner and fuel combustion method
US-10281148-B2 · May 7, 2019 · US
Combustion burner and method for maintaining combustion burner
US-2019049106-A1 · Feb 14, 2019 · US
Coal nozzle assembly comprising two flow channels
US-2019032914-A1 · Jan 31, 2019 · US
Angled main burner
US-2018363895-A1 · Dec 20, 2018 · US
Biomass-mixed, pulverized coal-fired burner and fuel combustion method
US-10107492-B2 · Oct 23, 2018 · US
Burner for the gasification of a solid fuel
US-10066832-B2 · Sep 4, 2018 · US
Burner and fine solids feeding apparatus for a burner
US-2018224119-A1 · Aug 9, 2018 · US
Combustion burner and boiler equipped with the same
US-2018195715-A1 · Jul 12, 2018 · US
Solid fuel burner
US-2018195716-A1 · Jul 12, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F23D2201/20?
- CPC F23D2201/20 is the Cooperative Patent Classification code for “Fuel flow guiding devices.”
- How many patents are filed under CPC F23D2201/20 (Fuel flow guiding devices)?
- Our database includes 99 publications tagged with this CPC code.
- Is patent activity under CPC F23D2201/20 growing?
- Publication counts under this code: 5 in 2024 vs 1 in 2025 (latest complete years).