Combustion system with perforated flame holder and swirl stabilized preheating flame
US-11415316-B2 · Aug 16, 2022 · US
heated by an auxiliary flame
heated by an auxiliary flame · 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 | F23D11/446 |
| Official title | {heated by an auxiliary flame} |
| Display label | heated by an auxiliary flame |
| Total patents | 27 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 3 |
| 2017 | 2 |
| 2018 | 3 |
| 2019 | 4 |
| 2020 | 4 |
| 2021 | 1 |
| 2022 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Igniter for gas turbine engine
US-11268486-B2 · Mar 8, 2022 · US
Fuel combustion system with a perforated reaction holder
US-11156356-B2 · Oct 26, 2021 · US
Igniter for gas turbine engine
US-10865761-B2 · Dec 15, 2020 · US
Igniter for gas turbine engine
US-2020080529-A1 · Mar 12, 2020 · US
Igniter for gas turbine engine
US-2020080530-A1 · Mar 12, 2020 · US
Combustion system with perforated flame holder and swirl stablized preheating flame
US-2020056781-A1 · Feb 20, 2020 · US
Fuel combustion system with a perforated reaction holder
US-2019277492-A1 · Sep 12, 2019 · US
Fuel combustion system with a perforated reaction holder
US-10337729-B2 · Jul 2, 2019 · US
Perforated flame holder support structure with heating element
US-2019137096-A1 · May 9, 2019 · US
Startup method and mechanism for a burner having a perforated flame holder
US-2019003705-A1 · Jan 3, 2019 · US
Startup method and mechanism for a burner having a perforated flame holder
US-10077899-B2 · Sep 18, 2018 · US
Two-circuit injector for a turbine engine combustion chamber
US-9927125-B2 · Mar 27, 2018 · US
Fuel combustion system with a perforated reaction holder
US-2018003378-A1 · Jan 4, 2018 · US
Fuel combustion system with a perforated reaction holder
US-9797595-B2 · Oct 24, 2017 · US
Burner with a series of fuel gas ejectors and a perforated flame holder
US-9562682-B2 · Feb 7, 2017 · US
Burner with a perforated reaction holder and heating apparatus
US-9447965-B2 · Sep 20, 2016 · US
Method for flame location transition from a start-up location to a perforated flame holder
US-9388981-B2 · Jul 12, 2016 · US
Burner with a perforated flame holder and pre-heat apparatus
US-9377190-B2 · Jun 28, 2016 · US
Startup method and mechanism for a burner having a perforated flame holder
US-2015369477-A1 · Dec 24, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F23D11/446?
- CPC F23D11/446 is the Cooperative Patent Classification code for “heated by an auxiliary flame.”
- How many patents are filed under CPC F23D11/446 (heated by an auxiliary flame)?
- Our database includes 27 publications tagged with this CPC code.
- Is patent activity under CPC F23D11/446 growing?
- Publication counts under this code: 1 in 2021 vs 2 in 2022 (latest complete years).