Burner system with a perforated flame holder and a plurality of fuel sources
US-2017350591-A1 · Dec 7, 2017 · US
Flame spreading or otherwise shaping (F23D14/70 takes precedence)
Flame spreading or otherwise shaping (F23D14/70 takes precedence) · 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 | F23D14/84 |
| Official title | Flame spreading or otherwise shaping (F23D14/70 takes precedence) |
| Display label | Flame spreading or otherwise shaping (F23D14/70 takes precedence) |
| Total patents | 190 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 23 |
| 2016 | 32 |
| 2017 | 20 |
| 2018 | 25 |
| 2019 | 18 |
| 2020 | 22 |
| 2021 | 11 |
| 2022 | 13 |
| 2023 | 7 |
| 2024 | 9 |
| 2025 | 7 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Burner assembly having a modified tile
US-2017268771-A1 · Sep 21, 2017 · US
Gaseous fuel-air burner having a bluff body flame stabilizer
US-2017261203-A1 · Sep 14, 2017 · US
Cooktop Appliance
US-2017138605-A1 · May 18, 2017 · US
Gas Burner Assembly
US-2017138592-A1 · May 18, 2017 · US
Gas burner
US-2016363327-A1 · Dec 15, 2016 · US
Multi-ring gas burner
US-2016363326-A1 · Dec 15, 2016 · US
Electrodynamic burner with a flame ionizer
US-2016363317-A9 · Dec 15, 2016 · US
Burner provided with flame hole member having air holes
US-2016363316-A1 · Dec 15, 2016 · US
Electrodynamic burner with a flame ionizer
US-9513006-B2 · Dec 6, 2016 · US
Electrically heated burner
US-2016348901-A1 · Dec 1, 2016 · US
Selective Oxy-Fuel Burner and Method for a Rotary Furnace
US-2016348970-A1 · Dec 1, 2016 · US
Precombustion ionization
US-9496688-B2 · Nov 15, 2016 · US
Gas cooktop and appliance comprising such a gas cooktop
US-2016281981-A1 · Sep 29, 2016 · US
Transient Heating Burner and Method
US-2016273765-A1 · Sep 22, 2016 · US
Burner with a perforated reaction holder and heating apparatus
US-9447965-B2 · Sep 20, 2016 · US
Home cooking appliance having a pedestal burner
US-2016265767-A1 · Sep 15, 2016 · US
Duct burner including a perforated flame holder
US-2016238240-A1 · Aug 18, 2016 · US
Burner with a perforated flame holder support structure
US-2016238242-A1 · Aug 18, 2016 · US
Box heater including a perforated flame holder
US-2016238277-A1 · Aug 18, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F23D14/84?
- CPC F23D14/84 is the Cooperative Patent Classification code for “Flame spreading or otherwise shaping (F23D14/70 takes precedence).”
- How many patents are filed under CPC F23D14/84 (Flame spreading or otherwise shaping (F23D14/70 takes precedence))?
- Our database includes 190 publications tagged with this CPC code.
- Is patent activity under CPC F23D14/84 growing?
- Publication counts under this code: 9 in 2024 vs 7 in 2025 (latest complete years).