Fire resistant composite rebar for concrete structures
US-2025296880-A1 · Sep 25, 2025 · US
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Metallurgical slag
Metallurgical 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 | C04B7/147 |
| Official title | Metallurgical slag |
| Display label | Metallurgical slag |
| Total patents | 22 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 2 |
| 2020 | 1 |
| 2021 | 4 |
| 2022 | 3 |
| 2023 | 4 |
| 2024 | 4 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of manufacturing inorganic binder by reduction furnace slag and cured solid manufactured by the method
US-12415756-B2 · Sep 16, 2025 · US
Method of stabilizing leachable compounds in a carbonate bonded matrix
US-2025171360-A1 · May 29, 2025 · US
Process to make calcium oxide or ordinary portland cement from calcium bearing rocks and minerals
US-2024383804-A1 · Nov 21, 2024 · US
Sulfur-resistant protection system
US-2024351951-A1 · Oct 24, 2024 · US
Method for extracting valuable metal from low-matte nickel converter slag
US-12018346-B2 · Jun 25, 2024 · US
Method for extracting valuable metal from low-matte nickel converter slag
US-2024035116-A1 · Feb 1, 2024 · US
Carbonized brick of recycled concrete powders and preparation method thereof
US-2023364824-A1 · Nov 16, 2023 · US
Process to make calcium oxide or ordinary portland cement from calcium bearing rocks and minerals
US-2023339807-A1 · Oct 26, 2023 · US
Process to make calcium oxide or ordinary Portland cement from calcium bearing rocks and minerals
US-11718558-B2 · Aug 8, 2023 · US
Method of manufacturing inorganic binder by reduction furnace slag and cured solid manufactured by the method
US-2023192551-A1 · Jun 22, 2023 · US
Process to make calcium oxide or ordinary portland cement from calcium bearing rocks and minerals
US-2022411328-A1 · Dec 29, 2022 · US
Method for preparing a cementing material using smelting industrial waste slag after utilizing the simultaneous removal of S02 and NOx in flue gas and application of the cementing material obtained by the same
US-11440842-B2 · Sep 13, 2022 · US
Method and system for producing low-alkalinity sulphoaluminate cement with new mineral system using steel slag
US-11396478-B2 · Jul 26, 2022 · US
METHOD FOR PREPARING A CEMENTING MATERIAL USING SMELTING INDUSTRIAL WASTE SLAG AFTER UTILIZING THE SIMULTANEOUS REMOVAL OF SO2 AND NOx IN FLUE GAS AND APPLICATION OF THE CEMENTING MATERIAL OBTAINED BY THE SAME
US-2021331974-A1 · Oct 28, 2021 · US
Additive for increasing early activity index of nickel slag and preparation method thereof
US-11142481-B2 · Oct 12, 2021 · US
Method and system for producing low-alkalinity sulphoaluminate cement with new mineral system using steel slag
US-2021130234-A1 · May 6, 2021 · US
Process to make calcium oxide or ordinary portland cement from calcium bearing rocks and minerals
US-2021070656-A1 · Mar 11, 2021 · US
Additive for increasing early activity index of nickel slag and preparation method thereof
US-2020361822-A1 · Nov 19, 2020 · US
Hydraulic composition
US-9670093-B2 · Jun 6, 2017 · US