Chemical loop reaction system
US-2025327569-A1 · Oct 23, 2025 · US
Mechanical Engineering
Mechanical Engineering · 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 | F23K5/22 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 25 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 4 |
| 2018 | 4 |
| 2019 | 2 |
| 2020 | 2 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Vapor generation system and apparatus
US-2025283594-A1 · Sep 11, 2025 · US
Burner assembly for a mobile heating device and insert component with retaining ring for an evaporator
US-2025242663-A1 · Jul 31, 2025 · US
Combustor and fuel cell system including same
US-12308487-B2 · May 20, 2025 · US
Method for combusting of hybrid rocket fuel and device for combusting
US-2025043751-A1 · Feb 6, 2025 · US
Fuel supply method, fuel supply system, fuel combustion system provided with fuel supply system, and gas turbine plant
US-2025012215-A1 · Jan 9, 2025 · US
Mobile heating device, and method for operating a mobile heating device
US-2024353101-A1 · Oct 24, 2024 · US
Gas control system
US-12025319-B2 · Jul 2, 2024 · US
Fuel supply method, fuel supply system, fuel combustion system provided with fuel supply system, and gas turbine plant
US-2023407784-A1 · Dec 21, 2023 · US
Combustor and fuel cell system including same
US-2022320534-A1 · Oct 6, 2022 · US
Hydrogen fuel vaporiser
US-2022099020-A1 · Mar 31, 2022 · US
Combustion chamber assembly unit
US-2020182456-A1 · Jun 11, 2020 · US
Combustion chamber assembly unit for a fuel-operated vehicle heater
US-10569619-B2 · Feb 25, 2020 · US
Method for forming consistently-sized and controllably-timed droplets
US-10443838-B2 · Oct 15, 2019 · US
Vaporized fuel introduction apparatus
US-10371103-B2 · Aug 6, 2019 · US
Method for Forming Consistently-Sized and Controllably-Timed Droplets
US-2018290154-A1 · Oct 11, 2018 · US
Vaporized fuel introduction apparatus
US-2018087476-A1 · Mar 29, 2018 · US
Temperature control of a fluid discharged from a heat exchanger
US-9920713-B2 · Mar 20, 2018 · US
Combustion chamber assembly unit for a fuel-operated vehicle heater
US-2018072134-A1 · Mar 15, 2018 · US
Fireplace of combusting gasified liquid fuel
US-9388989-B2 · Jul 12, 2016 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F23K5/22?
- CPC F23K5/22 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F23K5/22 (Mechanical Engineering)?
- Our database includes 25 publications tagged with this CPC code.
- Is patent activity under CPC F23K5/22 growing?
- Publication counts under this code: 2 in 2024 vs 6 in 2025 (latest complete years).