Switching device of gas valve
US-2018306436-A1 · Oct 25, 2018 · US
Regulating fuel supply
Regulating fuel supply · 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 | F23N1/00 |
| Official title | Regulating fuel supply |
| Display label | Regulating fuel supply |
| Total patents | 136 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 18 |
| 2016 | 15 |
| 2017 | 11 |
| 2018 | 18 |
| 2019 | 12 |
| 2020 | 9 |
| 2021 | 16 |
| 2022 | 8 |
| 2023 | 9 |
| 2024 | 7 |
| 2025 | 9 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Gas turbine combustor control system for stoichiometric combustion in the presence of a diluent
US-10107495-B2 · Oct 23, 2018 · US
Injector apparatus with reheat combustor and turbomachine
US-10094571-B2 · Oct 9, 2018 · US
Injector apparatus and reheat combustor
US-10094570-B2 · Oct 9, 2018 · US
Injecting apparatus with reheat combustor and turbomachine
US-10094569-B2 · Oct 9, 2018 · US
Startup method and mechanism for a burner having a perforated flame holder
US-10077899-B2 · Sep 18, 2018 · US
Systems and methods for operation of a flexible fuel combustor
US-2018259187-A1 · Sep 13, 2018 · US
Knob assembly for cook top
US-2018238552-A1 · Aug 23, 2018 · US
Methods and apparatus to automatically control oil burning operations
US-2018216819-A1 · Aug 2, 2018 · US
Gas burner
US-2018187885-A1 · Jul 5, 2018 · US
Low partial load emission control for gas turbine system
US-2018135533-A1 · May 17, 2018 · US
Human-machine interface for gas valve
US-2018106698-A1 · Apr 19, 2018 · US
Gas turbine having fuel monitoring
US-9933336-B2 · Apr 3, 2018 · US
Influence analyzing apparatus for analyzing influence of combustibles
US-2018073724-A1 · Mar 15, 2018 · US
Gas Switching Device And Associated Methods
US-2018038592-A1 · Feb 8, 2018 · US
Fuel combustion system with a perforated reaction holder
US-2018003378-A1 · Jan 4, 2018 · US
Systems and methods for flame holding avoidance in gas turbine combustors
US-2017363015-A1 · Dec 21, 2017 · US
Gas valve unit having two gas outlets
US-9822975-B2 · Nov 21, 2017 · US
Fuel combustion system with a perforated reaction holder
US-9797595-B2 · Oct 24, 2017 · US
Combustion controlling system
US-2017276351-A1 · Sep 28, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F23N1/00?
- CPC F23N1/00 is the Cooperative Patent Classification code for “Regulating fuel supply.”
- How many patents are filed under CPC F23N1/00 (Regulating fuel supply)?
- Our database includes 136 publications tagged with this CPC code.
- Is patent activity under CPC F23N1/00 growing?
- Publication counts under this code: 7 in 2024 vs 9 in 2025 (latest complete years).