Method for stabilization of reducing slag
US-2025305074-A1 · Oct 2, 2025 · US
Treatment of liquid slag
Treatment of liquid slag · 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 | C21B3/06 |
| Official title | Treatment of liquid slag |
| Display label | Treatment of liquid slag |
| Total patents | 32 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 3 |
| 2017 | 1 |
| 2019 | 4 |
| 2020 | 7 |
| 2021 | 2 |
| 2022 | 4 |
| 2023 | 5 |
| 2024 | 3 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of extracting and carbonating calcium from alkaline industrial waste or by-product materials
US-12157675-B2 · Dec 3, 2024 · US
Method for producing slag having a desired quality
US-2024376559-A1 · Nov 14, 2024 · US
Method and apparatus for direct drying of inorganic sludge with drum drawing process
US-11891318-B2 · Feb 6, 2024 · US
Elaboration of an advanced ceramic made of recycled industrial steel waste
US-11787745-B2 · Oct 17, 2023 · US
Efficient Treatment Method and Apparatus for Multiphase Steel Slag
US-2023265533-A1 · Aug 24, 2023 · US
Method of continuous manufacturing of solidified steelmaking slag and associated device
US-11708302-B2 · Jul 25, 2023 · US
Method for removing phosphorus from phosphorus-containing substance
US-11649514-B2 · May 16, 2023 · US
Blast furnace slag granulation and waste heat recovery and utilization device and method
US-2023100959-A1 · Mar 30, 2023 · US
Roller treatment process and treatment device suitable for total-amount steel slag treatment
US-11519043-B2 · Dec 6, 2022 · US
Control system and method for dry centrifugal granulation of liquid slag
US-11396683-B2 · Jul 26, 2022 · US
Method of dechromizing molten iron and method of manufacturing phosphate fertilizer raw material
US-11254992-B2 · Feb 22, 2022 · US
Method of extracting and carbonating calcium from alkaline industrial waste or by-product materials
US-2022024778-A1 · Jan 27, 2022 · US
Method and apparatus for direct drying of inorganic sludge with drum drawing process
US-2021347665-A1 · Nov 11, 2021 · US
Method for removing phosphorus from phosphorus-containing substance
US-2021071274-A1 · Mar 11, 2021 · US
High-temperature liquid slag granulating system
US-10801080-B2 · Oct 13, 2020 · US
Method of dechromizing molten iron and method of manufacturing phosphate fertilizer raw material
US-2020239973-A1 · Jul 30, 2020 · US
Method of continuous manufacturing of solidified steelmaking slag and associated device
US-2020231498-A1 · Jul 23, 2020 · US
Control System and Method for Dry Centrifugal Granulation of Liquid Slag
US-2020232064-A1 · Jul 23, 2020 · US
Method for controlling particle size of dry centrifugal granulated slag particles from liquid slag
US-2020208230-A1 · Jul 2, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C21B3/06?
- CPC C21B3/06 is the Cooperative Patent Classification code for “Treatment of liquid slag.”
- How many patents are filed under CPC C21B3/06 (Treatment of liquid slag)?
- Our database includes 32 publications tagged with this CPC code.
- Is patent activity under CPC C21B3/06 growing?
- Publication counts under this code: 3 in 2024 vs 1 in 2025 (latest complete years).