Method for preventing fouling of exhaust gas flow path of burning equipment and method for removing ammonium hydrogen sulfate contained in exhaust gas of burning equipment
US-9527030-B2 · Dec 27, 2016 · US
of purifiers, e.g. for removing noxious material (traps for solid residues F23J3/04)
of purifiers, e.g. for removing noxious material (traps for solid residues F23J3/04) · 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 | F23J15/02 |
| Official title | of purifiers, e.g. for removing noxious material (traps for solid residues F23J3/04) |
| Display label | of purifiers, e.g. for removing noxious material (traps for solid residues F23J3/04) |
| Total patents | 210 |
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 | 39 |
| 2016 | 35 |
| 2017 | 21 |
| 2018 | 23 |
| 2019 | 17 |
| 2020 | 12 |
| 2021 | 19 |
| 2022 | 11 |
| 2023 | 12 |
| 2024 | 12 |
| 2025 | 7 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fluid distribution and mixing grid for mixing gases
US-9518734-B2 · Dec 13, 2016 · US
Dual injection grid arrangement
US-2016279565-A1 · Sep 29, 2016 · US
Hybrid membrane and adsorption-based system and process for recovering CO2 from flue gas and using combustion air for adsorbent regeneration
US-9452386-B1 · Sep 27, 2016 · US
Hybrid membrane and adsorption-based system and process for recovering CO2 from flue gas and using combustion air for adsorbent regeneration
US-9452385-B1 · Sep 27, 2016 · US
System and method for reducing emissions in a chemical looping combustion system
US-2016265764-A1 · Sep 15, 2016 · US
Method for removing contaminants from exhaust gases
US-9440188-B2 · Sep 13, 2016 · US
Boiler combustion system and operation method therefor
US-9429319-B2 · Aug 30, 2016 · US
Boiler system and power plant including the same
US-2016245511-A1 · Aug 25, 2016 · US
Method for removal of radioactive cesium and facility therefor
US-9399598-B2 · Jul 26, 2016 · US
CO2 recovery system and recovery method for moisture containing CO2 gas
US-9400106-B2 · Jul 26, 2016 · US
Arrangement of a carbon dioxide generation plant, a capture plant and an carbon dioxide utilization plant and method for its operation
US-2016195270-A1 · Jul 7, 2016 · US
Emission gas treatment method and emission gas treatment apparatus
US-9364784-B2 · Jun 14, 2016 · US
Carbon dioxide recovery apparatus and carbon dioxide recovery method
US-9339762-B2 · May 17, 2016 · US
Wet type flue-gas desulfurization method
US-9327236-B2 · May 3, 2016 · US
Removal of mercury emissions
US-9321002-B2 · Apr 26, 2016 · US
Carbon dioxide recovery apparatus and carbon dioxide recovery method
US-9314741-B2 · Apr 19, 2016 · US
Exhaust gas treatment apparatus
US-9283520-B2 · Mar 15, 2016 · US
Dual stream system and method for producing carbon dioxide
US-9267685-B2 · Feb 23, 2016 · US
Method for removing nitrogen oxides from combustion fumes with on-site generation of ammonia
US-2016023163-A1 · Jan 28, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F23J15/02?
- CPC F23J15/02 is the Cooperative Patent Classification code for “of purifiers, e.g. for removing noxious material (traps for solid residues F23J3/04).”
- How many patents are filed under CPC F23J15/02 (of purifiers, e.g. for removing noxious material (traps for solid residues F23J3/04))?
- Our database includes 210 publications tagged with this CPC code.
- Is patent activity under CPC F23J15/02 growing?
- Publication counts under this code: 12 in 2024 vs 7 in 2025 (latest complete years).