Easy-to-use combustion device
US-10648660-B2 · May 12, 2020 · US
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Flame spreaders
Flame spreaders · 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 | F23D3/20 |
| Official title | Flame spreaders |
| Display label | Flame spreaders |
| Total patents | 8 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 2 |
| 2019 | 1 |
| 2020 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Combustion Device
US-2020088401-A1 · Mar 19, 2020 · US
Torch with elevated platform
US-10253975-B2 · Apr 9, 2019 · US
Torch with elevated platform
US-2017268770-A1 · Sep 21, 2017 · US
Enhanced torch top burner
US-9612010-B1 · Apr 4, 2017 · US
Burner with lance
US-9423125-B2 · Aug 23, 2016 · US
Adjustable vortex flame device
US-9377187-B2 · Jun 28, 2016 · US
Adjustable Vortex Flame Device
US-2015167964-A1 · Jun 18, 2015 · US