Smoke tube boiler
US-11320173-B2 · May 3, 2022 · US
curved
curved · 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 | F23D2203/1017 |
| Official title | curved |
| Display label | curved |
| 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 | 1 |
| 2016 | 2 |
| 2017 | 5 |
| 2018 | 8 |
| 2019 | 3 |
| 2020 | 7 |
| 2021 | 1 |
| 2022 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fluidic burner with heat stability
US-11313554-B2 · Apr 26, 2022 · US
Gas burner and hob comprising a gas burner
US-11268700-B2 · Mar 8, 2022 · US
Gas burner assembly
US-2021341177-A1 · Nov 4, 2021 · US
Combustion apparatus
US-10753642-B2 · Aug 25, 2020 · US
Inner swirling flame gas burner
US-10731851-B2 · Aug 4, 2020 · US
Inward fired low nox premix burner
US-2020173689-A1 · Jun 4, 2020 · US
Gas burner and hob comprising a gas burner
US-2020124288-A1 · Apr 23, 2020 · US
Distributed vertical flame burner
US-10627113-B2 · Apr 21, 2020 · US
Fluidic burner with heat stability
US-2020080720-A1 · Mar 12, 2020 · US
Smoke tube boiler
US-2020064024-A1 · Feb 27, 2020 · US
Burner for gas apparatus
US-10352557-B2 · Jul 16, 2019 · US
Combustion apparatus
US-2019186784-A1 · Jun 20, 2019 · US
Burner system including a non-planar perforated flame holder
US-2019024887-A1 · Jan 24, 2019 · US
Burner provided with flame hole member having air holes
US-10151478-B2 · Dec 11, 2018 · US
High efficiency high power inner flame burner
US-10145568-B2 · Dec 4, 2018 · US
Burner system including a non-planar perforated flame holder
US-10119704-B2 · Nov 6, 2018 · US
Inner swirling flame gas burner
US-2018238538-A1 · Aug 23, 2018 · US
Distributed vertical flame burner
US-2018187896-A1 · Jul 5, 2018 · US
Low NOx gas burners with carryover ignition
US-10006628-B2 · Jun 26, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F23D2203/1017?
- CPC F23D2203/1017 is the Cooperative Patent Classification code for “curved.”
- How many patents are filed under CPC F23D2203/1017 (curved)?
- Our database includes 30 publications tagged with this CPC code.
- Is patent activity under CPC F23D2203/1017 growing?
- Publication counts under this code: 1 in 2021 vs 3 in 2022 (latest complete years).