Continuously Modulating Actuator In A Combustion Apparatus
US-2025354689-A1 · Nov 20, 2025 · US
with a time program acting through electrical means, e.g. using time-delay relays
with a time program acting through electrical means, e.g. using time-delay relays · 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 | F23N5/20 |
| Official title | with a time program acting through electrical means, e.g. using time-delay relays |
| Display label | with a time program acting through electrical means, e.g. using time-delay relays |
| Total patents | 30 |
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 | 3 |
| 2016 | 5 |
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 2 |
| 2020 | 4 |
| 2021 | 5 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Adaptive Electronic Composite System
US-2025230929-A1 · Jul 17, 2025 · US
Combustion apparatus
US-12055291-B2 · Aug 6, 2024 · US
Intermittent pilot ignition gas valve having protection against negative pressure for internal diaphragms
US-11808452-B2 · Nov 7, 2023 · US
Combustion Apparatus
US-2022074591-A1 · Mar 10, 2022 · US
Fuel-operated vehicle heating device and method to operating a fuel-operated vehicle heating device
US-11148504-B2 · Oct 19, 2021 · US
Combustion apparatus
US-11079138-B2 · Aug 3, 2021 · US
Fuel-operated vehicle heating device and method to operating a fuel-operated vehicle heating device
US-2021114434-A1 · Apr 22, 2021 · US
Method of operating an ignition element of a gas burner
US-10935248-B2 · Mar 2, 2021 · US
Intermittent pilot ignition gas valve having protection against negative pressure for internal diaphragms
US-2021018172-A1 · Jan 21, 2021 · US
Method of operating an ignition element of a gas burner
US-2020278115-A1 · Sep 3, 2020 · US
Method of operating a gas burner of a cooking appliance
US-10739010-B2 · Aug 11, 2020 · US
Cooktop appliance with a thermally isolated injet
US-2020217501-A1 · Jul 9, 2020 · US
Gas control valve, hob and gas oven
US-10634360-B2 · Apr 28, 2020 · US
Method for detecting blockage in exhaust flue of gas boiler
US-10488042-B2 · Nov 26, 2019 · US
Combustion controlling device
US-10260747-B2 · Apr 16, 2019 · US
Combustion controlling device and method
US-2018266682-A1 · Sep 20, 2018 · US
Oscillating combustor with pulsed charger
US-10047950-B2 · Aug 14, 2018 · US
Combustion appratus
US-2018163994-A1 · Jun 14, 2018 · US
Combustion controlling device
US-2017276352-A1 · Sep 28, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F23N5/20?
- CPC F23N5/20 is the Cooperative Patent Classification code for “with a time program acting through electrical means, e.g. using time-delay relays.”
- How many patents are filed under CPC F23N5/20 (with a time program acting through electrical means, e.g. using time-delay relays)?
- Our database includes 30 publications tagged with this CPC code.
- Is patent activity under CPC F23N5/20 growing?
- Publication counts under this code: 1 in 2024 vs 2 in 2025 (latest complete years).