Structural Health Monitoring Patents: Trends & White Space 2026
- Filing is accelerating, not maturing. the midpoint year 2022 shows zero filings in this pull while 2025 peaks at 6 — growth is recent and still building, not a settled field.
- India leads receiving offices. 12 records route through India, ahead of the United States (9) and China (8), an unusual geography for a sensor hardware category.
- AI overlay is already substantial. 15 of 44 records touch G06N computing/AI classifications alongside the core G01M testing-and-structure IPC, meaning damage-identification algorithms are now a first-order claim target, not an afterthought.
What this landscape covers
This review tracks patent families filed against structural health monitoring (SHM) for civil infrastructure — strain sensor networks, damage identification, long-term drift correction, wireless deployment and digital-twin representations of a monitored structure — as classified under G01M5 (testing of structures), G01B11 (optical measurement of length) and E01D22 (bridge construction and monitoring methods). The 44 families in the pull span 2015 through the mid-2026 data cut-off, so the most recent year is necessarily undercounted; publication typically lags filing by around 18 months.
The IPC composition shows a core testing-and-structure cluster (G01M, 41 records) overlaid with a meaningful computing and AI layer (G06N, 15; G06F, 7) and a smaller but persistent aerospace-adjacent thread (B64F, B64D), suggesting techniques developed for aircraft structural monitoring are migrating into civil bridge and building contexts.
Filing trend and technology composition
Two views of the same 44-family dataset: how filing volume has moved year over year, and which IPC subclasses carry the technical weight.
Filing trend, 2017–2026
From 2 families in 2017 to a peak of 6 in 2025, with a flat midpoint in 2022 — the acceleration is concentrated in the last three to four years of the window, and 2026's partial-year count of 3 will likely rise once late filings publish.
IPC subclass distribution
G01M dominates as expected for a structural-testing category, but G06N's 15 records and G06F's 7 show that damage-identification and predictive-modelling claims are now filed alongside, not separately from, the sensing hardware.
Shares are the percentage of the 44 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Structural Health Monitoring for Civil Infrastructure with Eureka
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Try EurekaMost-cited records and a representative filing
US10012553B2 — Coated nanofiller/polymer composite sensor network for guided-wave-based structural health monitoring
A method for forming a structural-strain sensor network on a structure is provided. The sensor network has plural nanocomposite sensing elements having high sensitivity, and can be quickly fabricated. The method comprises attaching a molding layer having openings onto the surface, and filling the openings with a coating material made of nanocomposite hybrid material. After immobilizing the coating material in the openings, the sensing elements are formed and the molding layer is removed. Electrical wires are formed on the surface such that two opposite electrodes are formed on each sensing element. The resistance between the two electrodes indicates a strain experienced.Filed by The Hong Kong Polytechnic University, granted 2018-07-03.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20180340858A1 | Application of Ultrasonic Guided Waves for Structural Health Monitoring of Bonded Joints | 42 |
| 2 | US20170220718A1 | Motion Sensing Wi-Fi Sensor Networks for Continuous 3D Modeling and Prediction of Facility Responses to Distu… | 33 |
| 3 | US20160091388A1 | Effective structural health monitoring | 28 |
| 4 | WO2014180870A1 | Effective structural health monitoring | 16 |
| 5 | EP3096123A1 | Integrated system and methods for management and monitoring of vehicles | 10 |
| 6 | CN113310650A | 基于系梁挠度的拱桥吊索损伤识别方法、终端及存储介质 | 9 |
| 7 | CN120488925A | 一种用于钢-混组合梁固定端的裂缝监测系统 | 6 |
| 8 | US10093435B2 | Integrated system and methods for management and monitoring of vehicles | 5 |
| 9 | CN120470502A | 基于光纤分布式应变监测的海洋环境桩基损伤识别方法 | 4 |
| 10 | IN202111004398A | Neural network based structural damage detection system | 4 |
Citation counts reflect influence within the searched corpus and skew toward older filings; a 2018 or earlier priority date is not itself evidence of continued relevance.
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 findings that shape where a new filing or freedom-to-operate check should start.
Growth is recent, not steady
A flat 2022 followed by a run-up to 6 families in 2025 indicates the field only recently attracted sustained filing interest. Earlier art from 2015-2018 set foundational sensor-network and guided-wave concepts; the current wave is layering computing and deployment claims on top.
India is the leading receiving office
India's 12 records outpace the United States (9) and China (8) in this pull, an unusual lead for a hardware-heavy sensor category and worth checking against national infrastructure-monitoring mandates before assuming US or Chinese art dominates freedom-to-operate.
Aerospace SHM techniques are migrating in
Ten records sit in aircraft-ground-installation and aircraft-equipment IPC classes alongside the civil-infrastructure core, suggesting guided-wave and composite-sensor methods proven on airframes are being re-filed for bridges and buildings.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to structural health monitoring for civil infrastructure, with the prior art for and against each one.
Who is filing, and where momentum has stalled
Ownership in this 44-family set is dispersed across universities, infrastructure contractors and a handful of corporates, with no assignee showing filings in the most recent year captured.
University assignees dominate the ranking
Institutions including MIT, Hong Kong Polytechnic University, Xi'an Jiaotong University, Southwest Jiaotong University and Université libre de Bruxelles hold a substantial share of the 44 families, consistent with SHM's roots in structural engineering research rather than a single commercial standard.
Chinese rail contractors file jointly
China Railway No.22 Bureau Group entities and its subsidiaries, alongside Poly Changda Engineering, appear as co-assignee pairs, pointing to project-driven joint filings tied to specific rail or bridge builds rather than platform-wide sensor IP.
MIT and Shell share the strongest co-filing link
The MIT and Shell International Exploration & Production pairing is the single strongest co-assignee link in the dataset, suggesting an applied research collaboration around infrastructure or asset monitoring rather than a pure-academic output.
| Assignee | Recent year | YoY |
|---|---|---|
| Université libre de Bruxelles | 0 | — |
| Embraer | 0 | — |
| Massachusetts Institute of Technology (MIT) | 0 | — |
| SHELL INT EXPLORATION & PRODN | 0 | — |
| The Hong Kong Polytechnic University | 0 | — |
| Xi'an Jiaotong University | 0 | — |
| Southwest Jiaotong University | 0 | -100% |
| Shijiazhuang Tiedao University | 0 | — |
Where to take this analysis
The dataset points to next steps for teams deciding whether to file, license or design around.
Check the India filing surge
With India leading receiving offices at 12 records, a closer read of which applicants and infrastructure programmes are driving that volume would clarify whether it reflects domestic mandate-driven filing or genuine technology export.
Explore assignee filingsMap the AI overlay claims
15 of 44 records touch G06N computing classifications. Separating damage-identification algorithm claims from the underlying sensor hardware claims will show which layer is actually contested.
Review IPC breakdownTrack aerospace-to-civil migration
The B64F/B64D presence suggests aircraft SHM art is being adapted for bridges. Watching applicants who file in both domains could flag the next wave of civil filings before they publish.
Compare cross-domain filersCommon questions on SHM patents
This landscape covers patents classified under G01M5 (testing of structures), G01B11 (optical length measurement) and E01D22 (bridge monitoring), narrowed to records discussing strain sensor networks, damage identification, long-term drift, wireless deployment or digital-twin representations of a structure. It captures both the physical sensing hardware and the computing layer used to interpret sensor data. It does not include general-purpose vibration sensors or civil construction methods that lack a monitoring or diagnostic claim.
Ownership in this 44-family set is dispersed, with universities such as MIT, Hong Kong Polytechnic University, Xi'an Jiaotong University and Southwest Jiaotong University appearing alongside Chinese rail contractors like China Railway No.22 Bureau Group and corporates including Shell and Boeing. None of the tracked assignees show filings in the most recent year captured, which is consistent with publication lag rather than a genuine pullback.
India accounts for 12 of the records in this pull, ahead of the United States at 9 and China at 8. That is an unusual lead for a sensor-hardware category, and it likely reflects a combination of domestic infrastructure-monitoring initiatives and applicants filing first in their home jurisdiction before extending internationally. It is worth verifying against the specific applicants driving that volume before treating India as the primary commercial market for this technology.
Yes. Fifteen of the 44 records in this dataset touch G06N (AI-based computing) classifications, and a further seven touch G06F (electric digital data processing), meaning damage-identification and predictive-maintenance algorithms are now claimed alongside the physical sensor network rather than as a separate filing category. This overlay is a relatively recent addition to a field historically anchored in strain-gauge and guided-wave hardware.
US10012553B2, assigned to The Hong Kong Polytechnic University, claims a method of forming a nanocomposite-based strain sensor network directly on a structure's surface using a molding layer and coating process, with resistance between electrode pairs indicating strain. Anyone building a similarly fabricated, surface-applied nanocomposite strain network should review this claim scope closely, particularly the molding-and-fill fabrication sequence. Alternative sensing modalities, such as optical fibre or wireless MEMS approaches, sit outside this specific claim's fabrication method and may offer a clearer path.
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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.