Boiler system and method for operating boiler system
US-2025137151-A1 · May 1, 2025 · US
with water tubes arranged in the boiler furnaces, fire tubes or flue ways
with water tubes arranged in the boiler furnaces, fire tubes or flue ways · 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 | F22D1/02 |
| Official title | with water tubes arranged in the boiler furnaces, fire tubes or flue ways |
| Display label | with water tubes arranged in the boiler furnaces, fire tubes or flue ways |
| Total patents | 34 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 4 |
| 2017 | 3 |
| 2018 | 9 |
| 2019 | 5 |
| 2020 | 2 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Steam generation apparatus and exhaust gas heat recovery plant
US-11834968-B2 · Dec 5, 2023 · US
Steam generation apparatus and exhaust gas heat recovery plant
US-2023022466-A1 · Jan 26, 2023 · US
Exhaust gas cooler
US-11333348-B2 · May 17, 2022 · US
Once-through evaporator systems
US-11242987-B2 · Feb 8, 2022 · US
Exhaust gas cooler
US-2021048187-A1 · Feb 18, 2021 · US
Energy saving boiler system of steam supply
US-10883713-B2 · Jan 5, 2021 · US
Boiler, steam-generating plant provided with same, and method for operating boiler
US-10844753-B2 · Nov 24, 2020 · US
System and method for managing heat duty for a heat recovery system
US-10612422-B2 · Apr 7, 2020 · US
Method of reducing flue gas emissions and a boiler
US-10443839-B2 · Oct 15, 2019 · US
Once-through evaporator systems
US-2019178488-A1 · Jun 13, 2019 · US
Small supercritical once-thru steam generator
US-10215399-B2 · Feb 26, 2019 · US
Split pass economizer bank with integrated water coil air heating and feedwater biasing
US-10197267-B2 · Feb 5, 2019 · US
System and method for managing heat duty for a heat recovery system
US-2019010830-A1 · Jan 10, 2019 · US
Control method for operating a heat recovery steam generator
US-10101021-B2 · Oct 16, 2018 · US
System and method for managing heat duty for a heat recovery system
US-10077682-B2 · Sep 18, 2018 · US
Energy saving boiler system of steam supply
US-2018209638-A1 · Jul 26, 2018 · US
Coal fired oxy plant with air separation unit including parallel coupled heat exchanger
US-10006634-B2 · Jun 26, 2018 · US
System and method for managing heat duty for a heat recovery system
US-2018171828-A1 · Jun 21, 2018 · US
Boiler, steam-generating plant provided with same, and method for operating boiler
US-2018058267-A1 · Mar 1, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F22D1/02?
- CPC F22D1/02 is the Cooperative Patent Classification code for “with water tubes arranged in the boiler furnaces, fire tubes or flue ways.”
- How many patents are filed under CPC F22D1/02 (with water tubes arranged in the boiler furnaces, fire tubes or flue ways)?
- Our database includes 34 publications tagged with this CPC code.
- Is patent activity under CPC F22D1/02 growing?
- Publication counts under this code: 2 in 2023 vs 1 in 2025 (latest complete years).