Reducing gas injection system
US-12504233-B2 · Dec 23, 2025 · US
Conduits
Conduits · 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 | F27D2007/023 |
| Official title | {Conduits} |
| Display label | Conduits |
| Total patents | 29 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 2 |
| 2019 | 3 |
| 2020 | 3 |
| 2021 | 6 |
| 2023 | 8 |
| 2024 | 3 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for manufacturing carbon fiber bundle
US-12359349-B2 · Jul 15, 2025 · US
Window devices for furnaces
US-2024183617-A1 · Jun 6, 2024 · US
Resin curing device and resin curing method
US-11975356-B2 · May 7, 2024 · US
Reformer furnace for performing an endothermic process
US-11906247-B2 · Feb 20, 2024 · US
Process for processing hard metal
US-2023392231-A1 · Dec 7, 2023 · US
Compound Furnace
US-2023381859-A1 · Nov 30, 2023 · US
Blast furnace with shaft feeding of hot process gas
US-2023375272-A1 · Nov 23, 2023 · US
Heat treatment device and method of manufacturing display panel using the same
US-2023366627-A1 · Nov 16, 2023 · US
Light irradiation type thermal process apparatus using a gas ring
US-11798823-B2 · Oct 24, 2023 · US
Reducing gas injection system
US-2023324122-A1 · Oct 12, 2023 · US
Compound furnace
US-11766718-B2 · Sep 26, 2023 · US
Method for manufacturing carbon fiber bundle
US-2023193522-A1 · Jun 22, 2023 · US
Resin curing device and resin curing method
US-2021291221-A1 · Sep 23, 2021 · US
Process and apparatus for a convection charge heater having a recycle gas distributor
US-11021657-B2 · Jun 1, 2021 · US
Light irradiation type thermal processing apparatus
US-2021151335-A1 · May 20, 2021 · US
Reformer furnace for performing an endothermic process
US-2021140712-A1 · May 13, 2021 · US
Compound Furnace
US-2021078075-A1 · Mar 18, 2021 · US
Vertical furnace for processing substrates and a liner for use therein
US-10883175-B2 · Jan 5, 2021 · US
Ovens, discharge nozzle plates for distribution of gas through an oven, and methods to operate an oven
US-10767283-B2 · Sep 8, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F27D2007/023?
- CPC F27D2007/023 is the Cooperative Patent Classification code for “Conduits.”
- How many patents are filed under CPC F27D2007/023 (Conduits)?
- Our database includes 29 publications tagged with this CPC code.
- Is patent activity under CPC F27D2007/023 growing?
- Publication counts under this code: 3 in 2024 vs 2 in 2025 (latest complete years).