Smelting unit for steel production with a tap weight of between 60 t and 350 t
US-2025043370-A1 · Feb 6, 2025 · US
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of single-chamber fixed-hearth type
of single-chamber fixed-hearth type · 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 | F27B3/02 |
| Official title | of single-chamber fixed-hearth type |
| Display label | of single-chamber fixed-hearth type |
| Total patents | 22 |
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 | 2 |
| 2016 | 5 |
| 2017 | 3 |
| 2019 | 5 |
| 2020 | 3 |
| 2022 | 1 |
| 2023 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for producing metal ingot
US-11833582-B2 · Dec 5, 2023 · US
Scrap submergence device
US-11619448-B2 · Apr 4, 2023 · US
Method for producing metal ingot
US-11498118-B2 · Nov 15, 2022 · US
Baking device for a wafer coated with a coating containing a solvent
US-10825701-B2 · Nov 3, 2020 · US
Method for producing metal ingot
US-2020164432-A1 · May 28, 2020 · US
Method for producing metal ingot
US-2020122226-A1 · Apr 23, 2020 · US
Connection structure, magnetic annealing device using same, and connecting method
US-10473399-B2 · Nov 12, 2019 · US
Scrap submergence device
US-2019226764-A1 · Jul 25, 2019 · US
Vortex well inerting
US-10247479-B2 · Apr 2, 2019 · US
Substrate treatment apparatus
US-10229845-B2 · Mar 12, 2019 · US
Heat treatment apparatus, heat treatment method, and storage medium
US-10217652-B2 · Feb 26, 2019 · US
Combustion device for melting furnace, and melting furnace
US-9822970-B2 · Nov 21, 2017 · US
Starting a smelting process
US-9771626-B2 · Sep 26, 2017 · US
Apparatus for processing a melt
US-9587324-B2 · Mar 7, 2017 · US
Connection structure, magnetic annealing device using same, and connecting method
US-2016216032-A1 · Jul 28, 2016 · US
Substrate treatment apparatus
US-2016195331-A1 · Jul 7, 2016 · US
Heat treatment apparatus, heat treatment method, and storage medium
US-2016172218-A1 · Jun 16, 2016 · US
Direct smelting process
US-9359656-B2 · Jun 7, 2016 · US
Baking device for a wafer coated with a coating containing a solvent
US-2016148823-A1 · May 26, 2016 · US