Method of reacting CO2 by emulsifying concrete and use in oilwell cementing
US-12552978-B2 · Feb 17, 2026 · US
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Carbon dioxide post-treatment of already hardened material
Carbon dioxide post-treatment of already hardened material · 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 | C04B40/0236 |
| Official title | {Carbon dioxide post-treatment of already hardened material} |
| Display label | Carbon dioxide post-treatment of already hardened material |
| Total patents | 23 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 2 |
| 2018 | 1 |
| 2020 | 1 |
| 2021 | 2 |
| 2022 | 3 |
| 2023 | 4 |
| 2024 | 3 |
| 2025 | 3 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methods of making sustainable ductile cast cementitious structure for carbon dioxide sequestration
US-12552710-B2 · Feb 17, 2026 · US
Carbon dioxide immobilization method and cured cement body for carbon dioxide immobilization
US-2025205638-A1 · Jun 26, 2025 · US
Concrete coupon for recovery of biological agents
US-2025178973-A1 · Jun 5, 2025 · US
Carbon dioxide fixation method
US-12186704-B2 · Jan 7, 2025 · US
Method of preparation of a construction element by carbonation of cement
US-2024286965-A1 · Aug 29, 2024 · US
System and method for steam curing and carbonation curing precast concrete
US-2024254059-A1 · Aug 1, 2024 · US
Method of reacting co2 by emulsifying concrete and use in oilwell cementing
US-2024059951-A1 · Feb 22, 2024 · US
Controlling carbonation
US-2023242456-A1 · Aug 3, 2023 · US
Methods of forming cured composite materials with optimized ph and related compositions and systems
US-2023242446-A1 · Aug 3, 2023 · US
Method and System for Processing Concrete Granules
US-2023227356-A1 · Jul 20, 2023 · US
Methods of forming cured composite materials with optimized pH and related compositions and systems
US-11618714-B2 · Apr 4, 2023 · US
Methods of making sustainable ductile cast cementitious structure for carbon dioxide sequestration
US-2022274876-A1 · Sep 1, 2022 · US
Carbon dioxide fixation method
US-2022126237-A1 · Apr 28, 2022 · US
Artificial nacre material with layered structure and preparation method thereof
US-11267721-B2 · Mar 8, 2022 · US
Artificial nacre material with layered structure and preparation method thereof
US-2021340019-A1 · Nov 4, 2021 · US
Methods of forming cured composite materials with optimized ph and related compositions and systems
US-2021107834-A1 · Apr 15, 2021 · US
Multi-step curing of green bodies
US-2020062660-A1 · Feb 27, 2020 · US
Fiber-reinforced carbonated hydraulic inorganic molded plate and method for producing same
US-10093577-B2 · Oct 9, 2018 · US
Fiber-reinforced carbonated hydraulic inorganic molded plate and method for producing same
US-2016289119-A1 · Oct 6, 2016 · US