Smelting unit for steel production with a tap weight of between 60 t and 350 t
US-2025043370-A1 · Feb 6, 2025 · US
Walls; Roofs
Walls; Roofs · 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 | F27B3/16 |
| Official title | Walls; Roofs |
| Display label | Walls; Roofs |
| Total patents | 26 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 3 |
| 2017 | 2 |
| 2018 | 3 |
| 2019 | 5 |
| 2020 | 2 |
| 2021 | 4 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electric furnace and method for producing valuable metal
US-2024200873-A1 · Jun 20, 2024 · US
Self-crucible wall submerged burner furnace
US-11747084-B2 · Sep 5, 2023 · US
Wall system for a furnace, a furnace comprising such a wall system and a method for providing such a wall system
US-2021190428-A1 · Jun 24, 2021 · US
Auxiliary burner for electric furnace
US-11041621-B2 · Jun 22, 2021 · US
Over fire arrangement and method
US-10982843-B2 · Apr 20, 2021 · US
Auxiliary burner for electric furnace
US-10935234-B2 · Mar 2, 2021 · US
Self-crucible wall submerged burner furnace
US-2020340746-A1 · Oct 29, 2020 · US
Molten metal scrap submergence apparatus
US-10731922-B2 · Aug 4, 2020 · US
Fluid-cooled copper lid for arc furnace
US-10488114-B1 · Nov 26, 2019 · US
Over fire arrangement and method
US-2019323705-A1 · Oct 24, 2019 · US
Auxiliary burner for electric furnace
US-2019271465-A1 · Sep 5, 2019 · US
Auxiliary burner for electric furnace
US-2019264914-A1 · Aug 29, 2019 · US
Rotary hearth furnace
US-10294535-B2 · May 21, 2019 · US
Roof for electric furnace
US-10132566-B2 · Nov 20, 2018 · US
Molten metal scrap submergence apparatus
US-2018245847-A1 · Aug 30, 2018 · US
Molten metal scrap submergence apparatus
US-9920992-B2 · Mar 20, 2018 · US
Rotary hearth furnace
US-2017198365-A1 · Jul 13, 2017 · US
Arc furnace
US-9657994-B2 · May 23, 2017 · US
Impact resistant scrap submergence device
US-9481918-B2 · Nov 1, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F27B3/16?
- CPC F27B3/16 is the Cooperative Patent Classification code for “Walls; Roofs.”
- How many patents are filed under CPC F27B3/16 (Walls; Roofs)?
- Our database includes 26 publications tagged with this CPC code.
- Is patent activity under CPC F27B3/16 growing?
- Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).