Precast Geopolymer Concrete Patent Landscape 2026
The precast geopolymer concrete patent space is moderately concentrated, with United States Gypsum Co holding a commanding lead over a fragmented field of academic and industrial challengers. Activity has plateaued near its multi-year peak, signalling a maturing core while adjacent application branches remain lightly claimed.
United States Gypsum Co leads a fragmented, maturing field
United States Gypsum Co stands as the clear leader, holding 81 patent records — more than three times the tally of the second-ranked filer, Entech Corp at 25. The top five filers together account for 36% of the combined output of the hundred largest filers, indicating a moderately concentrated tier at the top against a long, diffuse tail.
Beyond the top two, the ranking compresses quickly: Rocla, Catholic University of America, and Cemalt LLC each hold 10–11 patent records, while the remainder of the top twenty ranges from 5 to 7. This tier gap between the leader and the rest creates meaningful first-mover advantages in core formulation IP.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | United States Gypsum Co | 81 | |
| 2 | Entech Corp | 25 | |
| 3 | Rocla | 11 | |
| 4 | Catholic University of America | 10 | |
| 5 | Cemalt LLC | 10 | |
| 6 | Sika Technology AG | 7 | |
| 7 | VEL TECH RANGARAJAN DR SAGUNTHALA R&D INST OF SCI … | 7 | |
| 8 | Sona College of Technology | 6 | |
| 9 | Shenzhen Construction Group Co. | 6 | |
| 10 | Cement Australia Pty | 6 |
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 11 | Shenzhen Construction Group Hehai Construction Co. | 6 | |
| 12 | Shenzhen Construction Group Western Construction Co. | 6 | |
| 13 | Heungkuk Industrial Co. Ltd | 6 | |
| 14 | Shenzhen Huaju Construction Co. | 6 | |
| 15 | Shenzhen Construction South China Construction Co. | 6 | |
| 16 | King Fahd University of Petroleum and Minerals | 6 | |
| 17 | C-Probe Systems | 5 | |
| 18 | Lakehead University | 5 | |
| 19 | Easwari Engineering College | 5 | |
| 20 | B-Ton IP GmbH | 5 |
United States Gypsum Co’s position, almost entirely anchored in C04B ceramics and cement chemistry, suggests its portfolio is deep in binder formulation rather than spread across end-use applications — leaving structural, paving, and shaping branches comparatively open to challengers.
Filings from approximately 2024–2026 are subject to standard patent-publication lag and are likely under-counted; conclusions about very recent activity should be treated as provisional. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Filing volume has plateaued; chemistry dominates but application branches are thin
Two charts together reveal a field that has reached volume maturity while its technology mix remains heavily skewed toward binder chemistry, leaving a cluster of end-use application classes largely unclaimed.
Annual filing trend
Annual filings rose from 13 in 2017 to a first spike of 39 in 2019, then oscillated in the 20–35 range through 2023 before reaching 35 in 2024 and a reported 44 in 2025. The 2025–2026 figures are subject to publication lag and should not be read as a sustained new peak. The overall trajectory confirms a field that has plateaued near its high-water mark rather than continuing to accelerate.
↗ Hover for values · click a bar to ask EurekaTechnology composition
C04B (Ceramics, cement and refractories) dominates with 422 patent records, dwarfing every other class. B28B (Shaping clay and cement products), E01C (Roads and pavements), E04C (Structural building components), and B28C (Mortar and concrete mixing) each register 17–26 patent records — present but sparse relative to the core chemistry class — pointing to underdeveloped coverage of manufacturing process and end-use application branches.
↗ Hover for values · click a bar to ask EurekaHighly cited patent families surfaced by the query
Citation-heavy patent families returned by the query. Use this section as citation context, not as a curated list of the most topic-specific patents.
Production method of geopolymer concrete
This invention relates to the production of geopolymer concrete using blast furnace and basic oxygen furnace slags generated during iron and steel production. With this invention, geopolymer concretes that do not require processes such as thermal curing, water curing, steam curing and showing high compressive strength can be produced. With the invention, it… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | High-strength geopolymer composite cellular concrete | 183 |
| 2 | Geopolymer composite for ultra high performance co… | 122 |
| 3 | Cementitious materials including stainless steel s… | 73 |
| 4 | Geopolymer concrete and method of preparation and … | 65 |
| 5 | Cementicious materials including stainless steel s… | 59 |
| 6 | Cementitious materials including stainless steel s… | 43 |
| 7 | Freeze-thaw durable geopolymer compositions and me… | 40 |
| 8 | Setting control for alkali-activated silicate bind… | 37 |
Ranked by total forward citations. Citation counts favour older and broadly cited patent families, and broad or adjacent patents may appear when they match the search scope. Treat this section as citation context, not as a curated list of the most topic-specific patents. Some patent titles may be shown in their original, non-English language where an accurate translation could not be guaranteed.
What the competitive structure means for R&D strategy
The combination of a maturing filing rate, a dominant single player in binder chemistry, and thin coverage in end-use application classes shapes a specific set of R&D entry and differentiation options.
Field has plateaued near peak — core formulation space is crowded
The lifecycle stage is Maturity: annual filings have plateaued near their peak, and the recent-window growth rate is –7%. New entrants seeking differentiation should look beyond core alkali-activation chemistry, where United States Gypsum Co holds an entrenched position, toward process engineering and specific end-use product forms.
Maturity stageStrong leader, weak mid-tier — room to build a challenger position
United States Gypsum Co’s 81 patent records versus Entech Corp’s 25 creates a significant gap at the top, but the mid-tier (10–11 records each) is closely bunched. A focused portfolio in any single adjacent branch — shaping, structural components, or pavement — could establish a credible second-tier position without frontal competition against the leader’s core IP.
Moderate concentrationShenzhen Construction Group subsidiaries form the most active co-filing cluster
The most active co-filing network involves Shenzhen Construction South China Construction Co., Shenzhen Construction Group Western Construction Co., Shenzhen Construction Group Co., Shenzhen Construction Group Hehai Construction Co., and Shenzhen Huaju Construction Co., each sharing 6 joint records. NTPC Ltd co-files with the Council of Scientific and Industrial Research and with Annamalai University (2 records each), reflecting a government-academic collaboration in India. Imerys Ceramics France and its affiliated entity share 2 joint records.
Cluster co-filingIndia leads filings; US and China are secondary hubs
India accounts for 129 patent records — the largest single jurisdiction — reflecting strong academic and governmental activity. The United States follows at 74, China at 54, with WIPO PCT and EPO at 32 and 31 respectively. Australia and Canada each register 21. Geographies such as Japan and South Korea each show only 5 records, suggesting limited defensive filing in those markets and potential freedom-to-operate for entrants targeting East Asian construction markets.
India-led geographyGo beyond the landscape: Eureka’s TRIZ Solution agent breaks down an R&D problem and returns patented concept solutions, each with a technical approach and cited patent & literature evidence.
| Applicant | Collaborator | Co-filings |
|---|---|---|
| Shenzhen Construction South China Construction Co. | Shenzhen Construction Group Western Construction Co. | 6 |
| Shenzhen Construction South China Construction Co. | Shenzhen Construction Group Co. | 6 |
| Shenzhen Construction South China Construction Co. | Shenzhen Construction Group Hehai Construction Co. | 6 |
| Shenzhen Construction South China Construction Co. | Shenzhen Huaju Construction Co. | 6 |
| NTPC Ltd | Council of Scientific and Industrial Research | 2 |
| NTPC Ltd | THE REGISTRAR ANNAMALAI UNIV | 2 |
| Imerys Ceramics France | Imerys S.A. | 2 |
Co-filing pairs, ranked by the number of jointly-filed patent families.
United States Gypsum Co anchors the field; Shenzhen Construction South China is a notable new entrant
The leader’s portfolio is almost entirely concentrated in C04B binder chemistry subclasses, while the most recent new entrant brings a construction-systems perspective from a large state-linked contractor.
United States Gypsum Co
With 81 patent records, United States Gypsum Co’s portfolio is concentrated in C04B 28 (alkali-activated binders, 80 records), C04B 12 (hydraulic cements, 48 records), and C04B 111 (use-coded ceramics, 39 records) — a deep, chemistry-first position in core geopolymer formulation. Its momentum data is not separately flagged in the evidence, indicating an established rather than accelerating filing pace.
patent records: 81Shenzhen Construction South China Construction Co.
Holding 6 patent records with a trajectory flagged as a new entrant, this Shenzhen Construction Group subsidiary focuses on C04B 28 (6 records), C04B 12 (3 records), and C04B 7 (3 records). Its co-filing with four related group entities on all 6 records signals a coordinated, construction-systems-led approach rather than isolated formulation research — a different strategic posture from the chemistry-oriented incumbents.
patent records: 6| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| VEL TECH RANGARAJAN DR SAGUNTHALA R&D INST OF SCI … | 3 | ▲ new entrant |
| Shenzhen Construction South China Construction Co. | 5 | ▲ new entrant |
Shaping, paving, and structural components are under-served relative to the chemistry core
Several IPC classes that represent direct end-use product and manufacturing-process applications of geopolymer concrete hold only a small fraction of the records concentrated in C04B, making them worth monitoring as adjacent entry points.
B28B · Shaping clay and cement products
With 26 patent records against C04B’s 422, B28B covers moulding, casting, and forming processes directly relevant to precast production lines. The technical value is immediate: optimised shaping processes could differentiate precast geopolymer products on cycle time and dimensional precision without re-litigating binder IP. Entry path for an industrial equipment maker or precaster is relatively uncontested given current sparse coverage.
Search this in Eureka →E04C · Structural building components
E04C captures patent claims on beams, columns, panels, and other load-bearing precast elements — only 21 patent records exist here. Geopolymer’s higher fire resistance and lower embodied-carbon credentials make structural components a technically plausible differentiation angle, yet IP coverage is thin. A precaster or structural engineer filing claims on element geometry, reinforcement integration, or connection systems in geopolymer would face limited prior art in this branch.
Search this in Eureka →How leaders differ by technology route
Route coverage across the main technology branches in the current evidence set.
| Player | C04B 28 · Ceramics, cement & refractories | C04B 111 · Ceramics, cement & refractories | C04B 12 · Ceramics, cement & refractories | C04B 18 · Ceramics, cement & refractories | C04B 22 · Ceramics, cement & refractories |
|---|---|---|---|---|---|
| United States Gypsum Co | Strong · 80 | Moderate · 39 | Strong · 48 | Emerging · 5 | Emerging · 12 |
| Entech Corp | Strong · 25 | Moderate · 6 | Absent | Strong · 18 | Absent |
| Cemalt LLC | Strong · 10 | Absent | Absent | Strong · 8 | Strong · 8 |
| NTPC Ltd | Strong · 10 | Moderate · 4 | Strong · 8 | Absent | Absent |
| Catholic University of America | Strong · 10 | Absent | Absent | Strong · 7 | Absent |
| Rocla | Strong · 11 | Absent | Absent | Absent | Moderate · 5 |
| Imerys Ceramics France | Strong · 7 | Strong · 6 | Absent | Absent | Absent |
Frequently asked questions
The corpus contains 263 patent families in scope. Filing activity has plateaued near its multi-year peak, with annual counts oscillating between roughly 20 and 44 across the 2017–2026 window.
United States Gypsum Co leads with 81 patent records, followed by Entech Corp at 25. Together, the top five filers account for 36% of the combined records of the hundred largest filers.
India leads with 129 patent records, reflecting high academic and governmental research activity. The United States follows at 74, and China at 54. WIPO PCT and EPO filings stand at 32 and 31 respectively.
C04B (Ceramics, cement and refractories) dominates with 422 patent records, reflecting a strong focus on binder and mix formulation. Adjacent branches — B28B (shaping), E01C (roads), E04C (structural components), and B28C (mixing) — each register only 17–26 patent records, indicating sparse coverage of manufacturing process and end-use applications.
The most active co-filing cluster involves five Shenzhen Construction Group subsidiaries, each sharing 6 joint records. NTPC Ltd co-files with the Council of Scientific and Industrial Research and with Annamalai University (2 records each). Imerys Ceramics France and its affiliated entity share 2 joint records.
The field is in a Maturity stage: annual filings have plateaued near their peak and the recent-window growth rate is -7%. Core alkali-activation binder chemistry is well-covered by incumbents. New entrants are more likely to find differentiated IP positions in shaping processes, structural component design, or civil infrastructure applications where patent density is substantially lower.
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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.
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