Concrete & Mortar Patents: Top Companies & Filing Trends 2026
- 348 families from the leading assignee against a long tail of 100 ranked companies — no single firm controls the field.
- Filings grew 7% from 2021 to 2024 (619 → 663), the last span the data treats as complete before publication lag sets in.
- C04B carries 66.4% of all 16,541 records while structural and testing subclasses each sit under 8%, marking where claim density thins out.
Filing growth compares 2021 (619 records) with 2024 (663) — 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 16,541 records in scope (CR5), not by the ranked leaders only.
What this landscape covers
This review covers 16,541 published records matching cement, mortar and concrete mixture terms combined with raw-material, hydration and strength-development language, filed between 2015 and the 2026 data cut-off. The scope spans cement chemistry, shaping and mixing equipment, structural building elements and the material-testing methods used to validate them, so the dataset mixes formulation chemistry with process and structural engineering claims.
Because publication lags filing by roughly 18 months, the most recent one to two years in any trend undercount true filing activity. The filing-growth figure quoted on this page therefore stops at 2024, the last year the dataset treats as complete.
Filing trends and technology composition
Two views of the same 16,541 records: how filing volume has moved year over year, and how those records distribute across IPC subclasses.
Filing trend, 2017–2026
Filings ran from 539 in 2017 to a peak of 750 in 2022, holding at 663 in 2024 — the last complete year — before the 2025–2026 figures taper off under publication lag. The 2021→2024 span shows +7% growth (619 to 663), a modest but real increase rather than a plateau.
Technology composition by IPC subclass
C04B (ceramics, cement and refractories) accounts for 66.4% of the 16,541 records in scope, dwarfing the next-largest subclasses — B28B shaping (7.8%), B28C mixing (6.3%) and E04C structural components (6.2%). Because records can carry multiple IPC codes, these shares sum past 100%; the gap between C04B and everything else is the more useful signal than any single percentage.
Shares are the percentage of the 16,541 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Concrete & Mortar Patent Landscape with Eureka
This page is one run against one query. Ask Eureka your own question about concrete & mortar patent landscape and every answer comes back with the patent numbers behind it.
Try EurekaA representative early filing
US4033782A — Calcium aluminate cement compositions and mixes and method for preparing them
Compositions and mixes of calcium aluminate cement with or without aggregates and with controlled amounts of calcium formate and preparation of the same, which significantly accelerate the setting times and early compressive strength gain of the product formed after addition of water for hydraulic setting of the cement.Filed by Sandoz Ltd. in 1977, this record predates the 2015–2026 filing window but sits upstream of it: calcium-formate accelerated calcium aluminate chemistry recurs across later strength-development claims in the dataset.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US6611755B1 | Vehicle tracking, communication and fleet management system | 1,024 |
| 2 | US20040039504A1 | Vehicle tracking, communication and fleet management system | 556 |
| 3 | US5393343A | Cement and cement composition having improved rheological properties | 396 |
| 4 | US6892131B2 | Vehicle tracking, communication and fleet management system | 388 |
| 5 | US4588443A | Shaped article and composite material and method for producing same | 344 |
| 6 | US5798425A | Co-polymers based on oxyalkyleneglycol alkenyl ethers and unsaturated dicarboxylic acid derivatives | 314 |
| 7 | US3284980A | Hydraulic cement panel with low density core and fiber reinforced high density surface layers | 276 |
| 8 | US20150143806A1 | Quintuple-Effect Generation Multi-Cycle Hybrid Renewable Energy System with Integrated Energy Provisioning, S… | 268 |
| 9 | US6210625B1 | Method for producing granulated material | 255 |
| 10 | US20020009622A1 | Sprayable phosphate cementitious coatings and a method and apparatus for the production thereof | 253 |
Citation counts favour older filings simply because they have had longer to accumulate citations inside the searched corpus — treat this table as a signal of historical influence, not of which technology is currently most active.
Each row carries its publication number; clicking a row searches Eureka by that number.
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Browse MCP servers →What the numbers mean for a filing decision
Three findings that shape where to file, and where dense prior art makes a new claim harder to defend.
The top of the field is thin relative to total volume
The five leading assignees together account for 1,230 records, 7.4% of the 16,541 in scope. Extending to the top 10 raises that to only 11.1% (1,833 records). Even the leader's 348 families is a small fraction of the whole — this is not a field one or two companies control.
Filing pressure concentrates in cement chemistry, not structure
C04B (ceramics, cement and refractories) covers two-thirds of the 16,541 records, far ahead of shaping (B28B, 7.8%), mixing (B28C, 6.3%) and structural components (E04C, 6.2%). New formulation claims land in the most crowded subclass; structural and analytical angles carry comparatively less claim density.
Growth is real but modest, and recent-year drops are an artefact
Filings rose from 619 in 2021 to 663 in 2024, a genuine if unspectacular increase after the 2022 peak of 750. Several named assignees show sharp year-on-year declines into the latest year, but that pattern matches publication lag across the whole dataset rather than a genuine pullback in R&D.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to concrete & mortar patent landscape, with the prior art for and against each one.
Who is filing, and where the gaps sit
The ranking covers 100 companies returned by the data endpoint — not a top-50 or top-100 cut of a larger list, but the full set the search surfaces. Filing is spread thin enough that most of the field sits outside the leading ten.
A modest lead, not a monopoly
The leading assignee holds 348 records against a field where fifth place already falls to 156 and tenth place to 103 — a steep drop-off rather than a plateau, consistent with a fragmented filing base.
Most of the field sits outside the ranked leaders
With the top 10 combined holding only 11.1% of all 16,541 records, the remainder is distributed across the other ranked companies and unranked filers. That spread rewards specific process or formulation claims over broad platform bets.
Joint filing is rare and concentrated among cement producers
Only 10 co-assignee pairs appear in the dataset, and the strongest pairing links two cement manufacturers on 45 shared records — well ahead of the next pairings, which sit near single digits. Co-filing is the exception, not the norm, in this field.
| Assignee | Recent year | YoY |
|---|---|---|
| Sika Technology AG | 1 | -88% |
| TERRA CO2 TECHNOLOGY HOLDINGS INC | 1 | -80% |
| Construction Research & Technology GmbH | 0 | -100% |
| Denka Co., Ltd. | 0 | — |
| W.R. Grace & Co.-Conn. | 0 | — |
| CARBONCURE TECHNOLOGIES INC | 0 | -100% |
| Taiheiyo Cement Corporation | 0 | — |
| Nouryon Chemicals | 0 | — |
Where to take this analysis
The dataset points to specific next steps depending on whether the goal is freedom-to-operate, portfolio strategy, or identifying open claim space.
Map claim language against the ranked leaders
Pull full claim sets from the leading assignees to see exactly which formulation and process language is already occupied before drafting new claims in the same subclass.
Explore assignee claims in EurekaTrack the under-claimed branches
Set alerts on the thinner subclasses — testing protocols, layered composites, low-carbon accelerants — to catch new entrants before density builds up.
Set up monitoring in EurekaRe-run the trend once 2025–2026 fills in
Treat the current tail-off as publication lag, not a real slowdown, and revisit the 2021–2024 growth comparison once later years are complete.
Ask Eureka for updated trendsCommon questions about the concrete and mortar patent landscape
The leading assignee in this dataset holds 348 records, but that is a modest share of the 16,541 records in scope — the top 5 assignees combined account for only 7.4% of the field, and the top 10 for 11.1%. This is a fragmented field rather than one dominated by a handful of companies, so competitive tracking needs to look well beyond the top 10 to get a full picture of activity.
Yes, modestly: filings rose from 619 in 2021 to 663 in 2024, a 7% increase over that span, after peaking at 750 in 2022. Figures for 2025 and 2026 appear lower, but that reflects the roughly 18-month lag between filing and publication rather than an actual drop in R&D activity. Any growth conclusion should be based on 2024 or earlier, since later years are still filling in.
Cement chemistry, classified under IPC subclass C04B, accounts for 66.4% of the 16,541 records in scope — by far the largest single category. Shaping (B28B), mixing (B28C) and structural components (E04C) each sit in the 6-8% range, and testing methods (G01N) and layered composites (B32B) are smaller still. Because a single record can carry multiple IPC codes, these shares add up to more than 100%, but the gap between C04B and the rest is the clearest signal of where claim density concentrates.
The subclasses furthest from the C04B core show comparatively thin filing density: layered composite reinforcement (B32B, 3.1% of records), material-testing protocols (G01N, 3.8%) and polymer-modified compositions (C08L, 4.3%) all trail the structural and mixing categories. These are not empty, but they carry far less claim density than cement chemistry itself, making them worth a closer freedom-to-operate check before assuming they are occupied.
US4033782A, filed by Sandoz Ltd. in 1977, covers calcium aluminate cement compositions using controlled calcium formate additions to accelerate setting time and early compressive strength gain. It predates the 2015-2026 window this landscape covers, but the accelerated calcium aluminate chemistry it describes recurs conceptually in later strength-development claims, making it a useful reference point for prior art searches in that specific chemistry even though its own term has long expired.
Among receiving offices in this dataset, the United States leads with 3,540 records, followed by Japan at 2,647 and the European Patent Office at 1,703. India (1,525), the WIPO PCT route (1,243) and Canada (912) round out the leading offices. This spread suggests filers are pursuing protection across multiple major markets rather than concentrating on a single jurisdiction.
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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.