Flame measuring system of industrial burner and method thereof
US-2025180204-A1 · Jun 5, 2025 · US
using ionisation-sensitive elements, i.e. flame rods
using ionisation-sensitive elements, i.e. flame rods · 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 | F23N5/12 |
| Official title | using ionisation-sensitive elements, i.e. flame rods |
| Display label | using ionisation-sensitive elements, i.e. flame rods |
| Total patents | 43 |
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 | 5 |
| 2016 | 7 |
| 2017 | 6 |
| 2018 | 4 |
| 2019 | 6 |
| 2020 | 6 |
| 2021 | 4 |
| 2022 | 2 |
| 2023 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Heating device and method for regulating a fan-operated gas burner
US-11761629-B2 · Sep 19, 2023 · US
Flame sensor assemblies and methods of replacing flame sensor assemblies
US-11644196-B2 · May 9, 2023 · US
Combustion apparatus and hot water apparatus
US-11384935-B2 · Jul 12, 2022 · US
Flame sensor assemblies and methods of replacing flame sensor assemblies
US-2022049849-A1 · Feb 17, 2022 · US
Flame sensor assemblies and methods of replacing flame sensor assemblies
US-11168885-B2 · Nov 9, 2021 · US
Flame monitor
US-11105509-B2 · Aug 31, 2021 · US
Heating device and method for regulating a fan-operated gas burner
US-2021254830-A1 · Aug 19, 2021 · US
Flame sensor assemblies and methods of replacing flame sensor assemblies
US-2021140636-A1 · May 13, 2021 · US
Flame rod
US-10767862-B2 · Sep 8, 2020 · US
Burner
US-10738995-B2 · Aug 11, 2020 · US
Burner
US-10718513-B2 · Jul 21, 2020 · US
Flame Monitor
US-2020182463-A1 · Jun 11, 2020 · US
Combustion apparatus and hot water apparatus
US-2020096197-A1 · Mar 26, 2020 · US
Combustion apparatus and hot water apparatus
US-2020033002-A1 · Jan 30, 2020 · US
Flame detecting system
US-10415829-B2 · Sep 17, 2019 · US
Flame ionization detector having special burner nozzle, and internal combustion engine, power station and burner nozzle
US-10281434-B2 · May 7, 2019 · US
Burner nozzle
US-10247702-B2 · Apr 2, 2019 · US
Burner
US-2019032915-A1 · Jan 31, 2019 · US
Burner
US-2019032916-A1 · Jan 31, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F23N5/12?
- CPC F23N5/12 is the Cooperative Patent Classification code for “using ionisation-sensitive elements, i.e. flame rods.”
- How many patents are filed under CPC F23N5/12 (using ionisation-sensitive elements, i.e. flame rods)?
- Our database includes 43 publications tagged with this CPC code.
- Is patent activity under CPC F23N5/12 growing?
- Publication counts under this code: 2 in 2023 vs 1 in 2025 (latest complete years).