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Run your analysis now →https://www.patsnap.com/resources/blog/rd-blog/viscosity-modifying-agents-for-self-compacting-concrete-patent-landscape/ · Patsnap · data cut-off 2026-07-31 · downloaded from the live page
Patent Landscape · Concrete AdmixturesViscosity modifying agent patents for self compacting concrete
- 48.5% concentration at the top. The five leading assignees account for 228 of the 470 records in scope — filing here means competing directly with a small, entrenched group rather than a fragmented field.
- Filing peaked in 2021 and has pulled back. Volume ran from 37 records in 2021 to 14 in 2024, a 62% drop over that span — activity is well past its high point, not still climbing.
- Cement chemistry dominates the class mix. C04B appears on 84.3% of all 470 records, while additive manufacturing (B33Y) and shaping/forming (B28B) sit under 3% each — most of the open space is outside core cement chemistry.
470
Published Records
49%
Top-5 Share of All Records
-62%
Filing Growth 2021→2024
US
Leading Jurisdiction
Filing growth compares 2021 (37 records) with 2024 (14) — 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 470 records in scope (CR5), not by the ranked leaders only.
Published byPatsnap Research··7 min readSourced from Patsnap Eureka
Field Overview
What this landscape covers
Self compacting concrete relies on viscosity modifying admixtures to hold segregation resistance, passing ability and slump flow within a workable window without added vibration. This landscape covers 470 published records filed or published between 2015 and the 2026-07-31 data cut-off, searched against terms spanning viscosity modifying admixtures, welan gum, V-funnel testing and robustness to water dosing. The scope captures both the admixture chemistry itself and the testing methods used to qualify it.
Publication lags filing by roughly 18 months, so the 2025 and 2026 figures in any trend understate true filing activity for those years — treat the 2024 figure as the most recent complete data point.
Filing activity by year, 2017-2026
Source: Patsnap Eureka. Assignee ranking and totals. Derived from a Patsnap search on Viscosity Modifying Agents for Self Compacting Concrete covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
Data & Trends
Filing trend and technology mix
Two views of the same 470-record set: how filing volume has moved year over year, and which IPC subclasses carry the underlying technical content.
A 2021 peak followed by a real pullback
Filings rose from 5 in 2017 to a peak of 37 in 2021, then fell to 14 by 2024 — a 62% decline across that three-year span. Because publication lags filing by around 18 months, the 2025-2026 counts are still filling in and should not be read as a continuation of the decline.
Cement chemistry carries the field
C04B (ceramics, cement and refractories) appears on 84.3% of all 470 records, confirming this is fundamentally a cement-chemistry field. Addition polymers (C08F, 11.9%) and condensation polymers (C08G, 7.9%) supply the polymer backbone for most viscosity modifiers, while material testing (G01N, 6.0%) and 3D printing (B33Y, 2.8%) mark smaller, more specialised branches. Since records can carry several classes, these shares sum to more than 100% of the 470-record total.
Shares are the percentage of the 470 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Source: Patsnap Eureka. Filing trend and technology composition. Derived from a Patsnap search on Viscosity Modifying Agents for Self Compacting Concrete covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.
Go deeper on Viscosity Modifying Agents for Self Compacting Concrete with Eureka
This page is one run against one query. Ask Eureka your own question about viscosity modifying agents for self compacting concrete and every answer comes back with the patent numbers behind it.
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Most-cited records in the corpus
Representative Filing
Method of delivery of agents providing freezing and thawing resistance to cementitious compositions (US7435766B2)
CONSTRUCTION RESEARCH & TECHNOLOGY GMBH
A method of delivering an admixture providing freeze-thaw resistance to a cementitious composition is provided which includes the addition of a viscosity modifying admixture containing at least one of polymeric microspheres, at least partially degradable polymeric particles, or gas generating additives to cementitious compositions. The polymeric microspheres, at least partially degradable polymeric particles, and gas generating additives provide void spaces in the material matrix, and such void spaces act to increase freeze-thaw durability of the material.Assigned to Construction Research & Technology GmbH, published 2008-10-14.
Highest-citation documents in scope
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | WO2010026155A1 | Plasticizer-containing hardening accelerator composition | 346 |
| 2 | EP1138697A1 | Polymers for cement dispersing admixtures | 309 |
| 3 | EP1138697B1 | Polymers for cement dispersing admixtures | 295 |
| 4 | EP1061089B1 | Multipurpose, cement dispersing polymers for high flow and high strength concrete | 227 |
| 5 | US6800129B2 | High solids pumpable cement additives | 128 |
| 6 | US20070056479A1 | Concrete mixtures incorporating high carbon pozzolans and foam admixtures | 109 |
| 7 | US20110029134A1 | Method For Monitoring Thixotropy In Concrete Mixing Drum | 93 |
| 8 | US8311678B2 | Method for adjusting concrete rheology based upon nominal dose-response profile | 92 |
| 9 | US20080156225A1 | Rheology modifying additive for cementitious compositions | 89 |
| 10 | US20040149172A1 | High solids pumpable cement additives | 89 |
Citation counts favour older filings simply because they have had more time to accumulate citations within this corpus — read them as a signal of influence on the field, not of current commercial relevance.
Each row carries its publication number; clicking a row searches Eureka by that number.
Source: Patsnap Eureka. Citation counts and representative records. Derived from a Patsnap search on Viscosity Modifying Agents for Self Compacting Concrete covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
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What the numbers say about this field
Three readings of the same dataset, each pointing to a different decision: where the field is concentrated, where its energy has already peaked, and where the technical content actually sits.
Concentration
48.5%
of 470 records held by top 5
A small group holds close to half the field
The five leading assignees together account for 228 of the 470 records in scope, and the top ten extend that to 64.7% (304 records). A new entrant is filing into a field where the claim space near the core chemistry is already well covered by a handful of players.
Top 10 = 64.7% of all records
Momentum
-62%
2021 to 2024 filing change
Filing has cooled from its 2021 peak
Volume dropped from 37 records in 2021 to 14 in 2024. That is a genuine pullback on complete data, not an artefact of publication lag — the field's most active filing window has passed, though it does not mean the underlying chemistry is settled.
2024 is the latest complete year
Technology mix
84.3%
of records classed under C04B
Core cement chemistry still dominates
C04B applies to the large majority of records, while adjacent classes like B33Y (3D printing, 2.8%) and B28B (shaping/forming, 2.3%) remain thin. The imbalance suggests most competitive activity is still fought over the same cement-chemistry ground rather than newer application contexts.
B33Y and B28B each under 3% of records
Eureka AI Agent
Looking for what nobody has claimed yet?
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to viscosity modifying agents for self compacting concrete, with the prior art for and against each one.
Source: Patsnap Eureka. Co-assignee relationships and derived observations. Derived from a Patsnap search on Viscosity Modifying Agents for Self Compacting Concrete covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
Competitive Landscape
Who is filing, and where the activity has slowed
The ranking covers 100 companies returned by the data endpoint — not a top-50 or top-100 cut, but the entire ranked list the dataset produces. Activity at the very top has gone quiet in the latest year even among the largest historical filers.
Leader
137
records
One assignee well ahead of the field
The leading assignee holds 137 records, far ahead of the fifth-place holder at 18 and tenth place at 14 — a steep drop-off rather than a gradual one.
Leader vs. 5th place: 137 vs. 18
Momentum check
0
latest-year filings among leaders
Even top filers show zero activity in the latest year
Several of the most prolific historical assignees, including the field leader, show zero recorded filings in the latest year, and one shows a -100% year-on-year change. This is consistent with publication lag rather than necessarily a real stop in R&D.
Read against the 18-month publication lag
Collaboration
10
co-assignee pairs identified
Co-filing is limited and concentrated
Only 10 co-assignee pairs appear in the dataset, and the strongest of these links a single corporate assignee with two named individual inventors repeatedly. Cross-company joint filing is rare in this field.
Strongest pair recurs across 4 records
Recent-year filing momentum by assignee
| Assignee | Recent year | YoY |
|---|---|---|
| Construction Research & Technology GmbH | 0 | — |
| GCP Applied Technologies Inc | 0 | — |
| Ciments Francais | 0 | — |
| OVERAIL SRL | 0 | — |
| Holcim Technology Ltd | 0 | -100% |
| Verifi LLC | 0 | — |
| UPM-Kymmene Oyj | 0 | — |
| Nippon Shokubai Co Ltd | 0 | — |
Source: Patsnap Eureka. Assignee-level momentum. Derived from a Patsnap search on Viscosity Modifying Agents for Self Compacting Concrete covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
Next Steps
Where to take this from here
The landscape points to a field with a concentrated core and a thinner periphery. The next step is deciding which of those two zones is worth the filing cost.
Map claims against the leading assignees
Before drafting, check how the leader's 137 records and the next four ranked assignees have already staked out core cement-chemistry claims, since that is where 48.5% of all filings sit.
Explore assignee claim scope in Eureka →Test the under-claimed branches
3D-printing and railway-track applications carry a fraction of the record count that core C04B chemistry does — worth a freedom-to-operate check before assuming the space is open.
Run a white space search in Eureka →Watch for the publication-lag rebound
The apparent drop-off in 2025-2026 filings is partly an artefact of the 18-month publication lag; re-check this trend once those years mature before concluding the field has gone quiet.
Track filing trends in Eureka →Source: Patsnap Eureka. Forward-looking reading of the same dataset. Derived from a Patsnap search on Viscosity Modifying Agents for Self Compacting Concrete covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
FAQ
Common questions about this landscape
A viscosity modifying admixture (VMA) adjusts the rheology of fresh concrete so it flows readily enough to self-consolidate without vibration, while still resisting segregation of aggregate from paste. It works alongside superplasticisers to keep slump flow and passing ability within a target range, particularly when the water content or aggregate grading varies batch to batch. Welan gum is one of the most commonly referenced biopolymer-based VMAs in the patent literature, valued for stabilising mixes against bleeding and segregation.
Filing in this field is concentrated: the top five assignees together hold 228 of the 470 records in scope, or 48.5% of the total, and the leading single assignee alone holds 137 records against 18 for the fifth-ranked filer. That is a steep drop-off rather than a gradual one, meaning a small number of established construction-chemicals companies control most of the documented claim space. The ranking covers 100 companies in total, drawn directly from the dataset rather than a curated top-50 or top-100 list.
Filing volume peaked at 37 records in 2021 and had fallen to 14 by 2024, a 62% decline over that three-year window using the most recent year that can be treated as complete. Because patent publication typically lags actual filing by around 18 months, the lower counts recorded for 2025 and 2026 are still filling in and should not yet be read as evidence of continued decline. On the data available through 2024, however, the field's most active filing period has passed.
Core cement chemistry (IPC class C04B) covers 84.3% of all 470 records, so most competitive filing pressure sits there. Adjacent application areas carry far fewer records — additive manufacturing and 3D printing (B33Y) appears on only 2.8% of records and shaping/forming processes (B28B) on 2.3% — suggesting these branches are comparatively under-claimed relative to their likely commercial relevance. Passing-ability testing methods and railway permanent-way formulations are similarly thin and worth a closer freedom-to-operate look.
Ownership is moderately concentrated: the top ten assignees account for 304 of the 470 records, or 64.7% of the total, leaving roughly a third of filings spread across a long tail of smaller and single-filing entrants. This pattern is typical of an admixture chemistry field with a few large, long-established construction-chemicals suppliers alongside numerous smaller regional or academic filers. Co-assignee collaboration is rare, with only 10 co-assignee pairs identified across the whole dataset.
Answers are grounded in the same dataset. Derived from a Patsnap search on Viscosity Modifying Agents for Self Compacting Concrete covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
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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.