Regeneration cooler of ramjet engine, and manufacturing method of the same
US-11512852-B2 · Nov 29, 2022 · US
characterised by the use of catalytic means
characterised by the use of catalytic means · 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 | F23R3/40 |
| Official title | characterised by the use of catalytic means |
| Display label | characterised by the use of catalytic means |
| Total patents | 112 |
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 | 5 |
| 2018 | 12 |
| 2019 | 6 |
| 2020 | 8 |
| 2021 | 12 |
| 2022 | 15 |
| 2023 | 15 |
| 2024 | 20 |
| 2025 | 8 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Integrated fuel cell and engine combustor assembly
US-2022356847-A1 · Nov 10, 2022 · US
Fuel injection for integral combustor and turbine vane
US-2022333777-A1 · Oct 20, 2022 · US
Fuel-cooled engine component(s)
US-2022290609-A1 · Sep 15, 2022 · US
Method of improving the effectiveness of an oxygen removal unit for a fuel supply system and the resulting oxygen removal unit
US-2022251382-A1 · Aug 11, 2022 · US
System and process for efficient SCR at high NO2 to NOx ratios
US-11378278-B2 · Jul 5, 2022 · US
Cracking and separation of ammonia fuel
US-2022162999-A1 · May 26, 2022 · US
Combustion device and gas turbine
US-11231176-B2 · Jan 25, 2022 · US
Starting burner for a fuel cell system
US-11233255-B2 · Jan 25, 2022 · US
Exhaust gas treatment device and exhaust gas treatment method
US-11209165-B2 · Dec 28, 2021 · US
Electrically heated catalytic combustor
US-2021396391-A1 · Dec 23, 2021 · US
System and method for reducing the visibility of exhaust emissions in a gas turbine system
US-2021372623-A1 · Dec 2, 2021 · US
Exhaust gas treatment device and exhaust gas treatment method
US-2021356128-A1 · Nov 18, 2021 · US
Exhaust gas treatment device and exhaust gas treatment method
US-2021356129-A1 · Nov 18, 2021 · US
Gas turbine
US-11141695-B2 · Oct 12, 2021 · US
Combined cycle power plant and methods of controlling emissions therefrom
US-2021301686-A1 · Sep 30, 2021 · US
Filter assembly for gas turbine engine
US-2021236969-A1 · Aug 5, 2021 · US
System and Process for Efficient SCR at High NO2 to NOx Ratios
US-2021180791-A1 · Jun 17, 2021 · US
Fuel injection for integral combustor and turbine vane
US-2021156564-A1 · May 27, 2021 · US
Combustion device and gas turbine
US-10995662-B2 · May 4, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F23R3/40?
- CPC F23R3/40 is the Cooperative Patent Classification code for “characterised by the use of catalytic means.”
- How many patents are filed under CPC F23R3/40 (characterised by the use of catalytic means)?
- Our database includes 112 publications tagged with this CPC code.
- Is patent activity under CPC F23R3/40 growing?
- Publication counts under this code: 20 in 2024 vs 8 in 2025 (latest complete years).