Method for iron making by continuous smelting reduction
US-12378614-B2 · Aug 5, 2025 · US
Constructional features of mixers for pig-iron
Constructional features of mixers for pig-iron · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C21C1/06 |
| Official title | Constructional features of mixers for pig-iron |
| Display label | Constructional features of mixers for pig-iron |
| Total patents | 27 |
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 | 7 |
| 2017 | 6 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 3 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Low pressure molten metal transfer pump
US-12168987-B2 · Dec 17, 2024 · US
Low pressure molten metal transfer pump
US-2023383754-A1 · Nov 30, 2023 · US
Method for iron making by continuous smelting reduction
US-2023082269-A1 · Mar 16, 2023 · US
Bottom stirring tuyere and method for a basic oxygen furnace
US-10781499-B2 · Sep 22, 2020 · US
Rotary degassers and components therefor
US-10570745-B2 · Feb 25, 2020 · US
Heating device and heating method of torpedo car
US-2020017928-A1 · Jan 16, 2020 · US
Magnetic pump installation
US-10371449-B2 · Aug 6, 2019 · US
Bottom stirring tuyere and method for a basic oxygen furnace
US-2019218631-A1 · Jul 18, 2019 · US
Molten iron refining method and device thereof
US-10077482-B2 · Sep 18, 2018 · US
Rotary degassers and components therefor
US-2017176106-A1 · Jun 22, 2017 · US
Impeller and method of melt-pool processing method using the same
US-9683271-B2 · Jun 20, 2017 · US
Metal recovery method
US-9663838-B2 · May 30, 2017 · US
Rotary degassers and components therefor
US-9657578-B2 · May 23, 2017 · US
Rotary degassers and components therefor
US-2017082368-A1 · Mar 23, 2017 · US
Method of controlling rotational speed of impeller
US-9602042-B2 · Mar 21, 2017 · US
Rotary degasser and rotor therefor
US-9506129-B2 · Nov 29, 2016 · US
Magnetic pump installation
US-2016313065-A1 · Oct 27, 2016 · US
Magnetic pump installation
US-9404687-B2 · Aug 2, 2016 · US
Magnetic pump installation
US-9395120-B2 · Jul 19, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C21C1/06?
- CPC C21C1/06 is the Cooperative Patent Classification code for “Constructional features of mixers for pig-iron.”
- How many patents are filed under CPC C21C1/06 (Constructional features of mixers for pig-iron)?
- Our database includes 27 publications tagged with this CPC code.
- Is patent activity under CPC C21C1/06 growing?
- Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).