Self-Healing Concrete Bridge Patent Snapshot 2026
Self-healing concrete bridge technology is in a growth stage, with activity concentrated heavily in India and dominated by academic and individual inventors rather than large industrial players. The field is fragmented at the top, with no single filer holding more than a narrow share, signaling early-stage commercialization and significant room for differentiated entry.
Academic inventors lead a highly fragmented, India-centric field
Aditya University and Symbiosis International University jointly head the applicant ranking, each with 2 patent records, followed by a long tail of individual inventors and small institutions each holding a single record. No visible industrial incumbent has yet emerged.
The top five filers together account for just 13% of the combined output of the ranked applicants visible in this query, indicating an unusually low concentration — consistent with a nascent field where academic and individual inventors set the pace rather than coordinated corporate programs.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | Aditya University | 2 | |
| 2 | Symbiosis International University | 2 | |
| 3 | Ram S. Sahu | 1 | |
| 4 | Ms. Aditi Dubey | 1 | |
| 5 | Graphic Era Deemed to be University | 1 | |
| 6 | Madhankumar C | 1 | |
| 7 | Dr. E. V. R. Rao | 1 | |
| 8 | Dr. Swati Agarwal | 1 | |
| 9 | Dr. Harikumar Pallathadka | 1 | |
| 10 | GHR Labs and Research Centre | 1 |
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 11 | G H RAISONI COLLEGE OF ENG & MANAGEMENT | 1 | |
| 12 | Dr. R. Sridhar | 1 | |
| 13 | Chandigarh University | 1 | |
| 14 | Mr. Ashutosh Pandey | 1 | |
| 15 | Iowa State University Research Foundation Inc. | 1 | |
| 16 | P. Kathirvel | 1 | |
| 17 | Dr. Pankaj Ramesh Gavit | 1 | |
| 18 | Dr. Ganesh Kumar A | 1 | |
| 19 | Ms. Madhu Sahu | 1 | |
| 20 | Ms. Ujjwala Rani | 1 |
The leadership profile — universities and named individual researchers — implies that foundational IP is still being established. An industrial entrant building on this academic base could capture a structurally advantaged position before the field consolidates.
Filing counts for the most recent 18–24 months are subject to publication lag and likely understate actual activity; interpret recent-year totals as a floor rather than a ceiling. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Filings accelerating since 2024; cement chemistry dominates the technology mix
Two charts together illustrate both the pace of growth and the technical routes being pursued: annual filing volume shows a clear upward turn from 2024 onward, while the IPC composition reveals how narrowly the field is anchored in cement and ceramics chemistry, with biological healing agents as the key secondary route.
Annual filing trend
Activity was sparse from 2017 through 2023, with single-digit filings in most years. A marked step-up began in 2024 and continued into 2025–2026; however, the most recent two years are subject to publication lag and recorded counts should be treated as minimums. The 33% recent-window growth rate confirms the upward trajectory on a multi-year basis.
↗ Hover for values · click a bar to ask EurekaTechnology composition
C04B (ceramics, cement, and refractories) accounts for all 25 patent records, establishing it as the universal technical backbone of the field. C12N (microorganisms and genetic engineering) appears in 7 records, reflecting the growing role of bacterial-mediated self-healing. Biocides, water treatment, and scaffolding branches each appear in only 2 records, indicating that application-layer and delivery-mechanism research remains sparse relative to material formulation.
↗ 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.
Silica encapsulation of ureolytic bacteria for sel…
One aspect of the present invention is directed to a method of preparing encapsulated ureolytic cells. This method includes blending freeze dried ureolytic cells and an aqueous solution to form a base mixture; mixing the base mixture with a silicate-forming compound to form a blend comprising silica encapsulated ureolytic cells; and freeze drying the silica… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Silica encapsulation of ureolytic bacteria for sel… | 19 |
| 2 | 一种自愈合混凝土及其制备方法 | 18 |
| 3 | Self-healing concrete for infrastructure durability | 2 |
| 4 | 一种碱处理聚丙烯纤维与再生骨料负载科氏芽孢杆菌协同的微生物混凝土制备方法 | 1 |
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.
Assignee snapshot from the current evidence set
The applicants below are visible in this query result. Because the evidence set is relatively small, read this section as a directional snapshot rather than a full competitive ranking.
Aditya University
Aditya University holds 2 patent records, all concentrated within C04B sub-classes covering cement composition, binders, and concrete additives (C04B 111, C04B 28, C04B 40). Its portfolio is narrowly but consistently focused on material-level formulation of self-healing cementitious systems, suggesting a cement-chemistry-first research program. Applicant momentum trend data is not available in this corpus.
patent records: 2Symbiosis International University
Symbiosis International University also holds 2 patent records but spans a broader IPC footprint, covering A01N 63 (biocides and agrochemicals), C02F 3 (water and wastewater treatment), and C04B 18 (ceramics and cement), indicating a biological healing-agent approach alongside cement-chemistry work. This cross-branch positioning differentiates it technically from Aditya University. Applicant momentum trend data is not available in this corpus.
patent records: 2Frequently asked questions
The current corpus covers 25 patent families in scope. The field is early-stage and small by patent-landscape standards, which means individual filings carry outsized prior-art weight.
India accounts for 21 of the patent records identified, making it the visible jurisdiction by a wide margin. China accounts for 3 records and the United States for 1.
Aditya University and Symbiosis International University each hold 2 patent records, placing them jointly at the top of the ranking. The remainder of the field consists of individual inventors and smaller institutions, each with a single record.
The C04B class — ceramics, cement, and refractories — appears across all 25 patent records, establishing cement-composition chemistry as the universal foundation. The secondary route, appearing in 7 records, is C12N (microorganisms and genetic engineering), reflecting bacterial self-healing approaches.
The lifecycle is classified as Growth. Annual filings were minimal before 2024 and have risen sharply since; the 33% recent-window growth rate confirms the upward trend. The most recent filing years are understated due to publication lag, so actual activity is likely higher than recorded counts suggest.
The most under-served adjacent branches are E04G (scaffolding, formwork, and repair systems) and C09K (encapsulants and specialty functional materials), each appearing in only 2 patent records. Both have direct technical relevance to deploying self-healing mechanisms in bridge construction and face minimal prior-art crowding.
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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.
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