Method of producing molten iron
US-2025003684-A1 · Jan 2, 2025 · US
Charging of arc furnaces vertically through the roof, e.g. in three points
Charging of arc furnaces vertically through the roof, e.g. in three points · 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 | F27B3/183 |
| Official title | {Charging of arc furnaces vertically through the roof, e.g. in three points} |
| Display label | Charging of arc furnaces vertically through the roof, e.g. in three points |
| Total patents | 34 |
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 | 9 |
| 2017 | 3 |
| 2018 | 6 |
| 2019 | 2 |
| 2020 | 6 |
| 2021 | 2 |
| 2022 | 1 |
| 2024 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Continuous concentrate feeding equipment
US-12077397-B2 · Sep 3, 2024 · US
Electric furnace
US-11898797-B2 · Feb 13, 2024 · US
Electric furnace
US-11473841-B2 · Oct 18, 2022 · US
Continuous concentrate feeding equipment
US-2021331880-A1 · Oct 28, 2021 · US
Apparatus and method for melting metal material
US-11156402-B2 · Oct 26, 2021 · US
Material hopper, in particular for a blast furnace
US-10823507-B2 · Nov 3, 2020 · US
Method for melting metal material in a melting plant and relative melting plant
US-10801083-B2 · Oct 13, 2020 · US
Apparatus and method for melting metal material
US-2020284512-A1 · Sep 10, 2020 · US
Electric furnace
US-2020080780-A1 · Mar 12, 2020 · US
Electric furnace
US-2020064071-A1 · Feb 27, 2020 · US
Apparatus for heating and transferring metal materials for a melting plant, and method for melting metal materials
US-10571194-B2 · Feb 25, 2020 · US
Fluid-cooled copper lid for arc furnace
US-10488114-B1 · Nov 26, 2019 · US
Material hopper, in particular for a blast furnace
US-2019219335-A1 · Jul 18, 2019 · US
Method and arrangement for adjusting characteristics of a furnace process in a furnace space and injection unit
US-2018245850-A1 · Aug 30, 2018 · US
Pressure ring assembly for contact shoes in an electrode system
US-10039158-B2 · Jul 31, 2018 · US
Arrangement for sealing a bellows cylinder in a pressure block of a pressure ring assembly
US-10034332-B2 · Jul 24, 2018 · US
Method of operating electric arc furnace
US-10001324-B2 · Jun 19, 2018 · US
Melting furnace
US-9903653-B2 · Feb 27, 2018 · US
Apparatus for pre-heating a metal charge for a melting plant and connected method
US-9903654-B2 · Feb 27, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F27B3/183?
- CPC F27B3/183 is the Cooperative Patent Classification code for “Charging of arc furnaces vertically through the roof, e.g. in three points.”
- How many patents are filed under CPC F27B3/183 (Charging of arc furnaces vertically through the roof, e.g. in three points)?
- Our database includes 34 publications tagged with this CPC code.
- Is patent activity under CPC F27B3/183 growing?
- Publication counts under this code: 2 in 2024 vs 1 in 2025 (latest complete years).