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 the fireside of watertubes in boilers
cleaning the fireside of watertubes in boilers · 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 | F23J3/023 |
| Official title | {cleaning the fireside of watertubes in boilers} |
| Display label | cleaning the fireside of watertubes in boilers |
| Total patents | 17 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 3 |
| 2019 | 1 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Heat exchanger tube block, exhaust heat recovery boiler, and method of constructing exhaust heat recovery boiler
US-12339077-B2 · Jun 24, 2025 · US
Exhaust heat recovery boiler
US-11802744-B2 · Oct 31, 2023 · US
System and methods for controlling operation of a recovery boiler to reduce fouling
US-2023131798-A1 · Apr 27, 2023 · US
Heat exchanger tube block, exhaust heat recovery boiler, and method of constructing exhaust heat recovery boiler
US-2022034502-A1 · Feb 3, 2022 · US
Exhaust heat recovery boiler
US-2022034609-A1 · Feb 3, 2022 · US
System and methods for controlling operation of a recovery boiler to reduce fouling
US-2021341140-A1 · Nov 4, 2021 · US
Soot blower
US-10962223-B2 · Mar 30, 2021 · US
Soot blower
US-2019078779-A1 · Mar 14, 2019 · US
Systems and methods for testing flue gas cleaning systems
US-10161630-B2 · Dec 25, 2018 · US
Systems and methods for testing flue gas cleaning systems
US-2018156454-A1 · Jun 7, 2018 · US
System and method for removing ash deposits within a boiler
US-2018119952-A1 · May 3, 2018 · US
Arrangement in a thermal process, and a method for measuring the thickness of a contamination layer
US-9739547-B2 · Aug 22, 2017 · US
An Arrangement in a Thermal Process, and a Method for Measuring the Thickness of a Contamination Layer
US-2016245599-A2 · Aug 25, 2016 · US
Self cleaning nozzle arrangement
US-9261307-B2 · Feb 16, 2016 · US
An Arrangement in a Thermal Process, and a Method for Measuring the Thickness of a Contamination Layer
US-2015369549-A1 · Dec 24, 2015 · US
Method and systems for acoustic cleaning
US-8984714-B2 · Mar 24, 2015 · US