Pulverized coal drying system for pulverizer, pulverized coal drying method therefor, pulverized coal drying program, pulverizer, and integrated gasification combined cycle
US-2021325041-A1 · Oct 21, 2021 · US
Mechanical Engineering
Mechanical Engineering · 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 | F23K3/02 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 78 |
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 | 6 |
| 2017 | 12 |
| 2018 | 8 |
| 2019 | 5 |
| 2020 | 9 |
| 2021 | 12 |
| 2022 | 3 |
| 2023 | 4 |
| 2024 | 5 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Powder fuel feed apparatus, gasifier unit, and integrated gasification combined cycle and control method of powder fuel feed apparatus
US-2021238490-A1 · Aug 5, 2021 · US
Conductive target material
US-11081325-B2 · Aug 3, 2021 · US
Opposed-injection aluminum melting furnace uniform combustion system
US-2021180786-A1 · Jun 17, 2021 · US
Simultaneous reaction system and method for organic material pyrolysis and combustion
US-11020702-B2 · Jun 1, 2021 · US
Pulverizing device, throat for pulverizing device, and pulverized-coal fired boiler
US-10974251-B2 · Apr 13, 2021 · US
Hybrid boiler-dryer and method
US-10976049-B2 · Apr 13, 2021 · US
System and method for providing combustion in a boiler
US-10955131-B2 · Mar 23, 2021 · US
Combustion system for a boiler
US-10948182-B2 · Mar 16, 2021 · US
Method and apparatus for reducing the NOx emissions in a rotary kiln
US-10914522-B2 · Feb 9, 2021 · US
Pulverized-fuel supply unit and method, and integrated gasification combined cycle
US-10836567-B2 · Nov 17, 2020 · US
Hybrid boiler-dryer and method
US-2020300454-A1 · Sep 24, 2020 · US
System, method and apparatus for controlling the flow distribution of solid particles
US-10773261-B2 · Sep 15, 2020 · US
Coal pulverizing apparatus, control device and control method for same, and coal-fired power plant
US-10758917-B2 · Sep 1, 2020 · US
Pressurizing system for powder supply hopper, gasification facility, integrated gasification combined cycle facility, and method for pressurizing powder supply hopper
US-10717594-B2 · Jul 21, 2020 · US
Combustion burner and boiler
US-10605455-B2 · Mar 31, 2020 · US
Solid fuel pulverizing device and method for controlling same
US-10603673-B2 · Mar 31, 2020 · US
Combustion burner and boiler
US-10591154-B2 · Mar 17, 2020 · US
Solid fuel burner and combustion device
US-2020072461-A1 · Mar 5, 2020 · US
Methods and devices for even distribution of solid fuel materials
US-10443841-B2 · Oct 15, 2019 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F23K3/02?
- CPC F23K3/02 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F23K3/02 (Mechanical Engineering)?
- Our database includes 78 publications tagged with this CPC code.
- Is patent activity under CPC F23K3/02 growing?
- Publication counts under this code: 5 in 2024 vs 3 in 2025 (latest complete years).