Gas turbine combustor and steam injected gas turbine
US-10088160-B2 · Oct 2, 2018 · US
using pipes
using pipes · 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 | F23R3/045 |
| Official title | {using pipes} |
| Display label | using pipes |
| Total patents | 221 |
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 | 11 |
| 2016 | 26 |
| 2017 | 17 |
| 2018 | 18 |
| 2019 | 31 |
| 2020 | 27 |
| 2021 | 31 |
| 2022 | 25 |
| 2023 | 17 |
| 2024 | 6 |
| 2025 | 11 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Trapped vortex cavity staging in a combustor
US-10072846-B2 · Sep 11, 2018 · US
Combustor for Use in a Turbine Engine
US-2018252410-A1 · Sep 6, 2018 · US
Combustor assembly with chutes
US-10024537-B2 · Jul 17, 2018 · US
Combustor dome heat shield
US-9982890-B2 · May 29, 2018 · US
Combustor cap assembly
US-9890954-B2 · Feb 13, 2018 · US
Combustor assembly for a turbine engine
US-2017370585-A1 · Dec 28, 2017 · US
Air flow guide cap and combustion duct having the same
US-2017363289-A1 · Dec 21, 2017 · US
Ducting arrangement with injector assemblies arranged in an expanding cross-sectional area of a downstream combustion stage in a gas turbine engine
US-2017343217-A1 · Nov 30, 2017 · US
Silo combustion chamber for a gas turbine
US-9810431-B2 · Nov 7, 2017 · US
Turbine air flow conditioner
US-9803864-B2 · Oct 31, 2017 · US
Controlled-leak combustor grommet
US-9803863-B2 · Oct 31, 2017 · US
Gas turbine flow sleeve mounting
US-2017268776-A1 · Sep 21, 2017 · US
Pilot nozzles in gas turbine combustors
US-2017248318-A1 · Aug 31, 2017 · US
Cooling system for fuel nozzles within combustor in a turbine engine
US-2017219212-A1 · Aug 3, 2017 · US
Bundled Tube Fuel Nozzle Assembly With Liquid Fuel Capability
US-2017138267-A1 · May 18, 2017 · US
Silo combustion chamber for a gas turbine
US-2017130961-A1 · May 11, 2017 · US
Cmc combustor shell with integral chutes
US-2017059159-A1 · Mar 2, 2017 · US
Air mixing systems having mixing chambers for gas turbine engines
US-2017037782-A1 · Feb 9, 2017 · US
Variable volume combustor with an air bypass system
US-9562687-B2 · Feb 7, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F23R3/045?
- CPC F23R3/045 is the Cooperative Patent Classification code for “using pipes.”
- How many patents are filed under CPC F23R3/045 (using pipes)?
- Our database includes 221 publications tagged with this CPC code.
- Is patent activity under CPC F23R3/045 growing?
- Publication counts under this code: 6 in 2024 vs 11 in 2025 (latest complete years).