System and methods for controlling operation of a recovery boiler to reduce fouling
US-12345410-B2 · Jul 1, 2025 · US
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Cleaning furnace tubes; Cleaning flues or chimneys
Cleaning furnace tubes; Cleaning flues or chimneys · 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 | F23J3/02 |
| Official title | Cleaning furnace tubes; Cleaning flues or chimneys |
| Display label | Cleaning furnace tubes; Cleaning flues or chimneys |
| Total patents | 15 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 2 |
| 2021 | 5 |
| 2023 | 3 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Furnace monitoring device
US-12123651-B2 · Oct 22, 2024 · US
Furnace monitoring device
US-2023168037-A1 · Jun 1, 2023 · US
System and methods for controlling operation of a recovery boiler to reduce fouling
US-2023131798-A1 · Apr 27, 2023 · US
Smelt spout cleaning assembly
US-11592175-B2 · Feb 28, 2023 · US
Smelt spout cleaning assembly
US-2021372614-A1 · Dec 2, 2021 · US
System and methods for controlling operation of a recovery boiler to reduce fouling
US-2021341140-A1 · Nov 4, 2021 · US
Swab material
US-2021302279-A1 · Sep 30, 2021 · US
Method for laser surface treatment of furnace furniture
US-2021114141-A1 · Apr 22, 2021 · US
Soot blower
US-10962223-B2 · Mar 30, 2021 · US
Soot blower
US-2019078779-A1 · Mar 14, 2019 · US
Circular fluidizing bed combustion system with uniform airflow distributing device
US-10174936-B2 · Jan 8, 2019 · US
Circular fluidizing bed combustion system with uniform airflow distributing device
US-2018195714-A1 · Jul 12, 2018 · US
Combustion furnace auto cleaner
US-9541287-B2 · Jan 10, 2017 · US
Gasification reactor with a heat exchange unit provided with one or more fouling protection devices
US-9267744-B2 · Feb 23, 2016 · US