Crossfire tube assembly with inner tube having different curvatures
US-11098901-B2 · Aug 24, 2021 · US
Flame tube interconnectors, e.g. cross-over tubes
Flame tube interconnectors, e.g. cross-over 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 | F23R3/48 |
| Official title | Flame tube interconnectors, e.g. cross-over tubes |
| Display label | Flame tube interconnectors, e.g. cross-over tubes |
| Total patents | 71 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 10 |
| 2017 | 8 |
| 2018 | 14 |
| 2019 | 8 |
| 2020 | 9 |
| 2021 | 6 |
| 2022 | 6 |
| 2023 | 1 |
| 2024 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Crossfire tube, combustor including the same, and gas turbine including the same
US-11067282-B2 · Jul 20, 2021 · US
Constant-volume combustion module for a turbine engine, comprising communication-based ignition
US-11066990-B2 · Jul 20, 2021 · US
Combustor chamber arrangement with sealing ring
US-10907830-B2 · Feb 2, 2021 · US
Cross fire tube installation/removal methods and apparatus
US-2020393132-A1 · Dec 17, 2020 · US
Tool kit and method for decoupling cross-fire tube assemblies in gas turbine engines
US-10837644-B2 · Nov 17, 2020 · US
Stand-off device for double-skin combustor liner
US-2020200387-A1 · Jun 25, 2020 · US
Cmc cross-over tube
US-2020182472-A1 · Jun 11, 2020 · US
Cross fire tube retention system
US-2020141584-A1 · May 7, 2020 · US
Combustor and gas turbine
US-10641492-B2 · May 5, 2020 · US
Crossfire tube, combustor including the same, and gas turbine including the same
US-2020103118-A1 · Apr 2, 2020 · US
Combustor including a flow guide introduction portion connected to a flow guide main body portion, and a gas turbine
US-10584879-B2 · Mar 10, 2020 · US
Cross ignition flame duct
US-10533750-B2 · Jan 14, 2020 · US
Cross fire tube with guide ring and angled cooling holes
US-10520196-B2 · Dec 31, 2019 · US
Gas turbine combustor cross fire tube assembly with opening restricting member and guide plates
US-10508813-B2 · Dec 17, 2019 · US
Gas turbine combustor
US-10401031-B2 · Sep 3, 2019 · US
Assembly of tube and structure crossing multi chambers
US-10344983-B2 · Jul 9, 2019 · US
New w501d5/d5a df42 combustion system
US-2019178495-A1 · Jun 13, 2019 · US
Combustion chamber arrangement
US-2019170352-A1 · Jun 6, 2019 · US
Gas Turbine Combustor
US-2019137106-A1 · May 9, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F23R3/48?
- CPC F23R3/48 is the Cooperative Patent Classification code for “Flame tube interconnectors, e.g. cross-over tubes.”
- How many patents are filed under CPC F23R3/48 (Flame tube interconnectors, e.g. cross-over tubes)?
- Our database includes 71 publications tagged with this CPC code.
- Is patent activity under CPC F23R3/48 growing?
- Publication counts under this code: 1 in 2023 vs 2 in 2024 (latest complete years).