Carbon Mineralization Concrete Patents: Leaders & White Space 2026
Filing growth compares 2021 (2 records) with 2024 (26) — a three-year span. 2024 is the most recent year we treat as complete: publication lags filing by roughly 18 months, so 2025 onwards are still filling in and any growth rate that ends there would understate the field. Top-5 share is the combined record count of the five largest assignees divided by all 121 records in scope (CR5), not by the ranked leaders only.
What this landscape covers
This landscape maps 121 published patent records filed between 2015 and mid-2026 that combine accelerated concrete carbonation or CO2-cured concrete with carbon mineralization or mineral carbonation claim language. The scope captures both cement-chemistry routes that inject CO2 into fresh concrete during curing and mineralization routes that lock CO2 into industrial residues such as steel slag or mine tailings before or during use as a cementitious material. Family-level counting is used throughout so that continuation filings and multi-jurisdiction copies of the same invention are not counted twice.
Filing activity is recent and concentrated in a narrow set of IPC subclasses, which makes this a useful field for checking both whitespace and freedom-to-operate before committing R&D spend.
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Filing trends and technology composition
Two views of the same 121-record dataset: the year-by-year filing curve, and the IPC subclasses that carry the claim language.
A field that only started moving in the last five years
Annual filings sat near zero through 2017 and only began climbing after 2021, reaching 2 that year and 26 by 2024 — a +1200% increase over that three-year span. 2024 is the last year that can be read as complete; 2025 and 2026 will fill in further as publication catches up with the roughly 18-month lag typical of patent data, so the apparent recent dip should not be read as a slowdown.
Claim language is concentrated in cement chemistry
C04B (ceramics, cement and refractories) appears in 90.1% of the 121 records, confirming that most inventions are framed as cement or concrete compositions rather than equipment or downstream structural claims. B28B (shaping clay and cement products) follows at 13.2%, with catalysis (B01J), separation (B01D), structural components (E04C) and inorganic compound chemistry (C01B, C01F) each present in under 6% of records — these are the classes to watch for adjacent, less-crowded claim framings.
Shares are the percentage of the 121 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Carbon Mineralization — Accelerated Concrete Carbonation Patent Landscape with Eureka
This page is one run against one query. Ask Eureka your own question about carbon mineralization — accelerated concrete carbonation patent landscape and every answer comes back with the patent numbers behind it.
Try EurekaThe most-cited records in this dataset
AU2021105354A4 — A cemented filling method by mineral carbonation of tailings
The invention provides a cemented filling method by mineral carbonation of tailings, which belongs to the technical field of industrial wastes utilization. Solid wastes with high calcium and/or magnesium content and low hydration activity were selected as cementitious materials. Firstly, the cementitious materials are crushed, ground, and fully mixed with tailings, water and addictive to prepare the filling slurry. Secondly, the filling slurry is transported to the mine out area by a pipeline. After the goaf is filled, the filling area is sealed and blocked. Thirdly, CO2 is injected into the closed filling area to curing the filling body.Filed by University of Science and Technology Beijing, 2021-10-14. Illustrates the mine-backfill branch of carbon mineralization, distinct from the ready-mix and precast routes that dominate the C04B classification.
View full record| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20170073270A1 | Carbonate-bonded construction products from steel-making residues and method for making the same | 64 |
| 2 | US20160168720A1 | Anticorrosive coatings, processes and uses thereof | 39 |
| 3 | WO2015139121A1 | Carbonate-bonded construction products from steel-making residues and method for making the same | 20 |
| 4 | CA2942401A1 | Carbonate-bonded construction products from steel-making residues and method for making the same | 14 |
| 5 | WO2015103107A1 | Anticorrosive coatings, processes and uses thereof | 12 |
| 6 | US20230257276A1 | Single-step low-temperature calcium carbonate production through carbon dioxide sequestration of mineral mate… | 9 |
| 7 | CN113480248A | 发泡混凝土碳封存方法 | 9 |
| 8 | US10112871B2 | Carbonate-bonded construction products from steel-making residues and method for making the same | 8 |
| 9 | US20230174424A1 | Method for sequestering co2 from flue gas and preparing microfiber-reinforced cement | 7 |
| 10 | US20220227677A1 | Carbonation system for curing of concrete products at ambient pressure | 7 |
Citation counts reward older filings that have had more time to accumulate references, so treat this table as a map of influence rather than of current commercial importance.
Patent titles are shown in the language they were filed in, not translated, so that each record stays verifiable against the original filing — a translated title will not match in Eureka or in any national register. Each row carries its publication number; clicking a row searches Eureka by that number.
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Three read-throughs from the filing, citation and classification data above.
The field is young, not mature
Annual filings went from 2 in 2021 to 26 in 2024. That trajectory says the claim space around carbonation curing is still being staked out, not that the underlying chemistry is settled — high recent filing density signals occupied claim territory, not proven commercial maturity.
A concentrated top, a long tail beneath it
The five leading filers combined account for 45.5% of all 121 records in scope, and the top ten reach 62.0%. With 53 companies appearing in the ranking overall, most of the field consists of single- or few-filing entrants working around the leaders' claims.
Cement chemistry dominates the claim framing
Almost every record in scope touches C04B cement and ceramics claim language, while adjacent classes covering structural components, separation processes and mixing equipment each sit under 6%. That gap is where equipment- and process-level claims remain comparatively open.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to carbon mineralization — accelerated concrete carbonation patent landscape, with the prior art for and against each one.
Where to take this analysis
The dataset points to specific next steps depending on whether the goal is freedom-to-operate, licensing or new filing strategy.
Check freedom-to-operate against the top filers
With 45.5% of records held by five companies, a targeted claim-chart review of the leader and the next four filers is the fastest way to know whether a planned cement-chemistry claim overlaps existing coverage.
Run a freedom-to-operate check in EurekaExplore the under-6% classes before drafting new claims
Structural components, separation processes and mixing equipment each stay under 6% of the 121 records, suggesting claim language framed around equipment or downstream structural use rather than cement composition has more open room.
Explore whitespace mapping in EurekaCommon questions on carbon mineralization concrete patents
In this dataset, carbon mineralization covers two overlapping routes: injecting CO2 into fresh concrete during curing so it reacts with calcium compounds to form stable carbonates, and mineralizing CO2 into industrial residues such as steel slag or mine tailings that are then used as cementitious material. Both routes aim to lock CO2 into a solid mineral form rather than storing it as a gas. The search scope combined accelerated concrete carbonation and CO2-cured concrete language with carbon mineralization and mineral carbonation language to capture records using either framing.
The assignee ranking covers 53 companies across 121 records in scope, with the leading filer holding 22 records and the fifth-place filer holding 5. That gap between first and fifth place indicates one company has run a sustained filing programme while a cluster of others filed more modestly around the same period. The full ranking, rendered separately on this page, is the reliable source for exact names and counts rather than any summary list.
Yes: filings rose from 2 in 2021 to 26 in 2024, a +1200% increase over that three-year span, with the field essentially starting from zero in 2017. 2024 is the most recent year that can be treated as a complete count; 2025 and 2026 figures will continue rising as publication catches up with the roughly 18-month lag typical between filing and publication. Nothing in the data suggests a slowdown — the apparent recent dip is a publication-lag artifact, not declining activity.
The IPC composition shows 90.1% of the 121 records tagged under C04B cement and ceramics chemistry, while structural components (E04C), catalytic acceleration (B01J), separation processes (B01D) and mixing equipment (B01F) each appear in under 6% of records. That imbalance suggests equipment-level and downstream structural-use claims are comparatively under-claimed relative to core cement composition claims, though any specific white-space claim should be checked against the full record set before drafting.
Citation counts in this dataset favour older filings simply because they have had more years to accumulate references from later applicants — the most-cited record here dates to a 2015-era filing family. They are a reasonable signal of which inventions became reference points for later filers, but a poor guide to which patents matter most for current commercial or competitive decisions. Recent, highly relevant filings may show low citation counts purely because of publication lag.
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Disclaimer. This page is generated from Patsnap Eureka data drawn from a limited snapshot of global patent and scientific-literature records, and is provided for general information and reference only.
Patent data carries inherent limitations: recent filings (typically the most recent 18–24 months) are under-counted due to standard publication lag; counts may be reported at either a patent-family or a patent-record basis and are not always directly comparable; classification, applicant-name, and citation data may contain errors, duplicates, or omissions; and the underlying search query defines and constrains the scope shown. As a result, the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing on this page constitutes an exhaustive prior-art, novelty, freedom-to-operate, or validity search, nor does it constitute legal, financial, investment, or professional advice, and it should not be relied upon as such. Any patent, commercial, or strategic decision should be verified independently and reviewed with qualified patent, legal, and domain professionals. Patsnap makes no warranties, express or implied, as to the accuracy, completeness, or fitness for any particular purpose of the information presented.
Machine translation. Assignee and organisation names originally recorded in Chinese, Japanese or Korean have been rendered into English by an AI translation step so that the tables stay readable. These renderings are best-effort and may not match a company’s registered English name; the original name is what the underlying patent record carries, and it is what any Eureka query launched from this page uses.