Pre- and post-treatment methods for producing carbon-negative supplementary cementitious materials by direct air capture and sequestration of carbon dioxide
US-2025042812-A1 · Feb 6, 2025 · US
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from waste building materials, e.g. waste asbestos-cement products, demolition waste
from waste building materials, e.g. waste asbestos-cement products, demolition waste · 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 | C04B7/246 |
| Official title | {from waste building materials, e.g. waste asbestos-cement products, demolition waste} |
| Display label | from waste building materials, e.g. waste asbestos-cement products, demolition waste |
| Total patents | 17 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 4 |
| 2023 | 6 |
| 2024 | 4 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process to make calcium oxide or ordinary portland cement from calcium bearing rocks and minerals
US-2024383804-A1 · Nov 21, 2024 · US
Process for the combined manufacture of steel and cement clinker
US-2024318271-A1 · Sep 26, 2024 · US
Method and facility for producing material containing hydrated cement
US-12005459-B2 · Jun 11, 2024 · US
Method of producing a synthetic carbonated mineral component in a cement manufacturing plant
US-2024092691-A1 · Mar 21, 2024 · US
Method of producing a supplementary cementitious material
US-2023406774-A1 · Dec 21, 2023 · US
Process to make calcium oxide or ordinary portland cement from calcium bearing rocks and minerals
US-2023339807-A1 · Oct 26, 2023 · US
Method for modifying recycled fine powder of concrete and use thereof
US-11780116-B2 · Oct 10, 2023 · US
Process to make calcium oxide or ordinary Portland cement from calcium bearing rocks and minerals
US-11718558-B2 · Aug 8, 2023 · US
Process for separating the components of hardened concrete waste for producing recycled cement
US-2023081205-A1 · Mar 16, 2023 · US
Method of producing cement clinker and a second calcined material
US-2023002277-A1 · Jan 5, 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 Modifying Recycled Fine Powder Of Concrete And Use Thereof
US-2022314491-A1 · Oct 6, 2022 · US
Method for producing solidifying material for radioactive waste disposal via recycling of radioactive concrete and method for disposing of radioactive waste using the same
US-11417438-B2 · Aug 16, 2022 · US
Method and facility for producing material containing hydrated cement
US-2022032316-A1 · Feb 3, 2022 · US
Process to make calcium oxide or ordinary portland cement from calcium bearing rocks and minerals
US-2021070656-A1 · Mar 11, 2021 · US
Method for producing solidifying material for radioactive waste disposal via recycling of radioactive concrete and method for disposing of radioactive waste using the same
US-2020161014-A1 · May 21, 2020 · US