Method of heating a fluid and tube arrangement of a fluid heating furnace for such a method
US-2025305722-A1 · Oct 2, 2025 · US
Combinations of steam boilers with other apparatus
Combinations of steam boilers with other apparatus · 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 | F22B33/18 |
| Official title | Combinations of steam boilers with other apparatus |
| Display label | Combinations of steam boilers with other apparatus |
| Total patents | 39 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2017 | 1 |
| 2018 | 4 |
| 2019 | 5 |
| 2020 | 3 |
| 2021 | 7 |
| 2022 | 3 |
| 2023 | 3 |
| 2024 | 4 |
| 2025 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Temperature control means in a waste heat boiler
US-2025297733-A1 · Sep 25, 2025 · US
Vapor supply device and drying system
US-12359848-B2 · Jul 15, 2025 · US
Boiler system and method for operating boiler system
US-2025137151-A1 · May 1, 2025 · US
Gas turbine cogeneration system, method of operating gas turbine cogeneration system, and method of modifying gas turbine cogeneration system
US-12258902-B2 · Mar 25, 2025 · US
Inlet duct system for a heat recovery steam generator
US-12253004-B1 · Mar 18, 2025 · US
Neutron absorbing apparatus
US-12243662-B2 · Mar 4, 2025 · US
Lane switching heat exchanger
US-2024328687-A1 · Oct 3, 2024 · US
Low-carbon energy utilization system for steam and power cogeneration of oil field
US-12050007-B2 · Jul 30, 2024 · US
Gas turbine cogeneration system, method of operating gas turbine cogeneration system, and method of modifying gas turbine cogeneration system
US-2024175395-A1 · May 30, 2024 · US
Vapor injection heat pump
US-11927372-B2 · Mar 12, 2024 · US
Vapor injection heat pump
US-2023349597-A1 · Nov 2, 2023 · US
Neutron absorbing apparatus
US-2023117993-A1 · Apr 20, 2023 · US
Autonomous self-powered system for removing thermal energy from pools of liquid heated by radioactive materials
US-11569001-B2 · Jan 31, 2023 · US
Steam generator for fuel cell applications
US-11476480-B2 · Oct 18, 2022 · US
Low-carbon energy utilization system for steam and power cogeneration of oil field
US-2022325885-A1 · Oct 13, 2022 · US
Connector for fastening a steam generator to a flow mixing header in an integral nuclear reactor
US-11270806-B2 · Mar 8, 2022 · US
Vapor supply device and drying system
US-2021364193-A1 · Nov 25, 2021 · US
Exhaust gas cooling device and method
US-11156131-B2 · Oct 26, 2021 · US
Sorbent utilization improvement by selective ash recirculation from a particulate collector
US-11124718-B2 · Sep 21, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F22B33/18?
- CPC F22B33/18 is the Cooperative Patent Classification code for “Combinations of steam boilers with other apparatus.”
- How many patents are filed under CPC F22B33/18 (Combinations of steam boilers with other apparatus)?
- Our database includes 39 publications tagged with this CPC code.
- Is patent activity under CPC F22B33/18 growing?
- Publication counts under this code: 4 in 2024 vs 7 in 2025 (latest complete years).