Structural Health Monitoring Patents: Who Leads, Gaps Ahead 2026
- Flat, not growing. Filing peaked at 8 records in 2018; the 2022 midpoint of 7 shows the field has plateaued rather than accelerated since.
- China dominates the filing venue. 50 of the tracked receiving-office records originate from China, dwarfing India (9), Japan (4), Australia (3) and the US (3).
- No single assignee has pulled away. The leader holds only 5 records out of 72, and the top 10 combined still account for just 36.1% of all records in scope.
What this dataset covers
This landscape tracks 72 published patent records filed between 2015 and mid-2026 that combine structural health monitoring for buildings or bridges with a specific technical or operational angle: sensor durability, damage indicators, temperature-effect separation, power, communication, cost justification or inspection. It is a narrow slice of a broader sensing field, built to surface how monitoring claims interact with these practical constraints rather than sensing hardware in general.
Because publication typically lags filing by around 18 months, the most recent filing years understate real activity. Read the 2025-2026 figures as a floor, not a ceiling.
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Filing trend and technology composition
Two views of the same 72 records: how filing volume has moved year over year, and which IPC subclasses carry the claim density.
A field that peaked and settled
Filings rose to a peak of 8 in 2018, sat at 7 by the 2022 midpoint, and show no clear upward trend toward 2026 — consistent with a technology area where core sensing and alarm approaches are largely staked out and new filings are incremental rather than foundational.
Measurement and control claims dominate
G01D (measuring and recording) and G05B (control and regulating systems) each cover 25.0% of the 72 records, roughly double the density of E01D (bridges specifically, 9.7%) or the AI and wireless classes (G06N and H04W, 8.3% each). Since records can carry multiple IPC classes, the shares add up to more than 100% — the takeaway is that general measurement and control infrastructure is claimed far more heavily than bridge-specific structural classes or newer computational approaches.
Shares are the percentage of the 72 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 Buildings and Bridges with Eureka
This page is one run against one query. Ask Eureka your own question about structural health monitoring for buildings and bridges and every answer comes back with the patent numbers behind it.
Try EurekaThe most-cited records in this space
US6240783B1 — Bridge monitoring system
A bridge monitoring system uses laser light reflected from structural members of a bridge to create velocity and displacement time signals of the bridge's vibratory response to quiescent conditions, and converts the sensed velocity and displacement time data to frequency domain data to provide a signature waveform for the bridge indicative of its structural characteristics.Cited 86 times within this corpus — the clear citation leader, filed by USBI, CO, and granted 2001-06-05.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US6240783B1 | Bridge monitoring system | 86 |
| 2 | CN105652830A | 一种基于BIM的桥梁监测系统 | 45 |
| 3 | CN106404319A | 基于MEMS技术的桥梁远程自动化实时监测系统及方法 | 29 |
| 4 | CN109059750A | 一种基于组合差分GNSS的桥梁形变多频动态分析方法 | 24 |
| 5 | CN111143932A | 一种桥梁健康状态的评估方法、装置、系统和设备 | 21 |
| 6 | WO2017050785A1 | Wire bridge monitoring system | 18 |
| 7 | CN204271949U | 浮桥监测系统自维持悬臂梁式压电电源 | 15 |
| 8 | CN207424630U | 桥梁监测系统 | 13 |
| 9 | US20180273344A1 | Wire bridge monitoring system | 12 |
| 10 | JP2017053165A | Sensor control device, sensor system, and bridge monitoring system | 12 |
Citation counts favour older records simply by virtue of being searchable longer; treat them as a signal of influence within this corpus, not of current commercial importance.
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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Browse MCP servers →What the data means for filing strategy
Three patterns worth acting on before drafting or clearing claims in this space.
No dominant gatekeeper
The leading assignee holds just 5 of 72 records, and the top 5 combined reach only 22.2% of all records in scope. That is dispersion, not a moat — a new entrant is not walking into a field controlled by one or two incumbents.
Filing is heavily China-centric
China accounts for the large majority of receiving-office records, with India, Japan, Australia and the US each in single digits. Freedom-to-operate work should weight Chinese prior art and utility-model practice heavily rather than treating US and EP filings as the primary barrier.
Measurement and control claims crowd the center
G01D and G05B each sit at 25.0% of records, well ahead of bridge-specific E01D at 9.7% and AI-based G06N at 8.3%. Generic sensing and control architecture is heavily claimed; structure-specific and AI-driven interpretation methods are comparatively lighter.
Momentum has flattened
Filing peaked at 8 records in 2018 and held at 7 by the 2022 midpoint, with no assignee in the tracked momentum list showing filings in the latest year. This points to a maturing claim landscape rather than one in an active land-grab phase.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to structural health monitoring for buildings and bridges, with the prior art for and against each one.
Who is filing, and where the gaps sit
The assignee ranking spans 100 companies counted across 72 records — this is the full ranking the data returns, not a curated top-50 or top-100 list. Ownership is fragmented: the leader files just 5 records, and by tenth place the count is down to 2.
A thin lead, not a moat
The top-ranked assignee holds 5 of 72 records in scope. That is enough to matter in a specific claim area but far from a blocking position across the field, and momentum data shows zero filings from this assignee in the latest tracked year.
A long tail of single- and double-filers
Beyond the top 10, the ranking thins quickly to entities holding one or two records each — a mix of Chinese engineering-services firms, university labs and infrastructure operators. This fragmentation suggests opportunities for consolidation through licensing or acquisition rather than head-on litigation risk.
Co-filing is limited and localized
Only 10 co-assignee pairs appear across the dataset, and the strongest links sit within a single bridge-operator and its maintenance affiliates rather than across the field. Cross-organization R&D partnerships are the exception, not the norm, in this space.
| Assignee | Recent year | YoY |
|---|---|---|
| Inventio AG | 0 | — |
| Shao Pengfei | 0 | — |
| Renesas Electronics Corporation | 0 | — |
| Yangzhou University | 0 | — |
| Metropolitan Expressway Co., Ltd. | 0 | — |
| Shutoko Maintenance West Tokyo | 0 | — |
| Shutoko Maintenance East Tokyo | 0 | — |
| Asia Air Survey Co., Ltd. | 0 | — |
Where to take this analysis
The dataset points to specific next steps depending on whether you are clearing a design or planning where to file.
Clear a design against the citation leaders
Start with the most-cited records, particularly the vibration-and-frequency-domain approach in US6240783B1, before drafting claims around bridge vibratory response sensing.
Explore prior art in EurekaWatch the China filing corridor
With 50 of 72 records originating in China, monitor Chinese utility-model and invention filings closely rather than relying on US/EP publication cycles alone.
Track filings in EurekaTarget the under-claimed branches
Temperature-effect separation, low-power wireless nodes and AI-based damage classification show thinner filing density than the core measurement and alarm classes — worth scoping before committing to a filing strategy.
Map white space in EurekaCommon questions about this landscape
This dataset tracks 72 published patent records filed between 2015 and mid-2026 that combine structural health monitoring for buildings or bridges with a specific technical angle such as sensor durability, damage indicators, temperature-effect separation, power, communication, cost justification or inspection. It is a targeted slice, not a count of every sensing patent that touches civil structures. Because publication lags filing by roughly 18 months, the 2025-2026 counts will rise as more applications publish.
Ownership is fragmented: the leading assignee holds only 5 of the 72 records in scope, and the top 10 combined reach just 36.1% of all records. No company has a dominant blocking position, which means freedom-to-operate risk in this field comes more from dense claim clusters in specific IPC classes than from any single competitor's portfolio.
Filing activity peaked at 8 records in 2018 and had settled to 7 by the 2022 midpoint, with no clear upward trend since. Combined with the fact that no tracked assignee shows filings in the latest year, this points to a field where core claim space around sensing, alarm and control architectures is largely staked out rather than one in active expansion.
General measurement and recording (G01D) and control and regulating systems (G05B) each cover 25.0% of the 72 records, making them the densest claim areas by a clear margin. Bridge-specific structural classes (E01D, 9.7%) and AI-based computing approaches (G06N, 8.3%) are comparatively lighter, suggesting more open claim space in structure-specific and AI-driven interpretation methods than in generic sensing infrastructure.
China accounts for 50 of the tracked receiving-office records, far ahead of India (9), Japan (4), Australia (3), the United States (3) and WIPO PCT filings (2). Anyone doing freedom-to-operate or white-space analysis in this field should weight Chinese prior art and utility-model filings heavily rather than defaulting to US or European searches.
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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.