Method of operating a rotating detonation combustor
US-12474056-B1 · Nov 18, 2025 · US
Combustion chambers having rotary flame tubes
Combustion chambers having rotary flame tubes · 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 | F23R3/56 |
| Official title | Combustion chambers having rotary flame tubes |
| Display label | Combustion chambers having rotary flame tubes |
| Total patents | 58 |
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 |
| 2016 | 6 |
| 2017 | 5 |
| 2018 | 12 |
| 2019 | 16 |
| 2020 | 8 |
| 2021 | 1 |
| 2022 | 4 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Regenerative cooling and adjustable throat for rotating detonation engine
US-2024077028-A1 · Mar 7, 2024 · US
Regenerative cooling and adjustable throat for rotating detonation engine
US-11852077-B2 · Dec 26, 2023 · US
Isolation section suppressing shock wave forward transmission structure for wave rotor combustor and wave rotor combustor
US-11585533-B2 · Feb 21, 2023 · US
Regenerative cooling and adjustable throat for rotating detonation engine
US-2022333530-A1 · Oct 20, 2022 · US
Chamber for rotating detonation engine and wall obstacles for same
US-2022325893-A1 · Oct 13, 2022 · US
Turbulence generator mixer for rotating detonation engine
US-2022325890-A1 · Oct 13, 2022 · US
Isolation section suppressing shock wave forward transmission structure for wave rotor combustor and wave rotor combustor
US-2022090789-A1 · Mar 24, 2022 · US
Effervescent atomizing structure and method of operation for rotating detonation propulsion system
US-11131461-B2 · Sep 28, 2021 · US
Variable geometry rotating detonation combustor
US-2020393128-A1 · Dec 17, 2020 · US
Rayleigh-Taylor assisted combustion with micro-flameholders
US-10788213-B2 · Sep 29, 2020 · US
Rotating detonation combustor with discrete detonation annuli
US-2020248905-A1 · Aug 6, 2020 · US
Rotating detonation combustor with offset inlet
US-2020166212-A1 · May 28, 2020 · US
Rotating detonation engine multi-stage mixer
US-10627111-B2 · Apr 21, 2020 · US
Effervescent atomizing structure and method of operation for rotating detonation propulsion system
US-2020103117-A1 · Apr 2, 2020 · US
Ignition system for constant volume combustor
US-10526965-B2 · Jan 7, 2020 · US
Injectors for gas turbine combustion chamber
US-10527287-B2 · Jan 7, 2020 · US
Effervescent atomizing structure and method of operation for rotating detonation propulsion system
US-10520195-B2 · Dec 31, 2019 · US
Wave rotor with piston assembly
US-10502131-B2 · Dec 10, 2019 · US
Wave rotors with temperature control features
US-10443856-B2 · Oct 15, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F23R3/56?
- CPC F23R3/56 is the Cooperative Patent Classification code for “Combustion chambers having rotary flame tubes.”
- How many patents are filed under CPC F23R3/56 (Combustion chambers having rotary flame tubes)?
- Our database includes 58 publications tagged with this CPC code.
- Is patent activity under CPC F23R3/56 growing?
- Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).