CFRP Ultrasonic & Porosity QC Patent Snapshot 2026
The CFRP ultrasonic and porosity quality-control patent field is in a Growth stage, with the Japan Aerospace Exploration Agency holding the strongest position among a predominantly academic and government-affiliated applicant pool. Activity has accelerated sharply on a multi-year basis, with China emerging as the dominant filing jurisdiction, while core non-destructive testing methods remain the clear technical focus.
JAXA leads a fragmented, research-heavy field with moderate top-five concentration
Japan Aerospace Exploration Agency ranks first with 6 patent records, followed by Baylor University with 4 patent records. The remaining ranked applicants each hold 2 or 1 patent records, indicating a long tail of early-stage entrants rather than a deep-pocketed incumbent bloc.
The top five filers account for 30% of the combined patent records held by the ranked applicants visible in this query. This moderate concentration level reflects a field where no single commercial entity has yet established a visible intellectual-property fortress.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | Japan Aerospace Exploration Agency (JAXA) | 6 | |
| 2 | Baylor University | 4 | |
| 3 | Industry-Academic Cooperation Foundation of Woosuk University | 2 | |
| 4 | Harbin Institute of Technology | 2 | |
| 5 | Dongguan University of Technology | 2 | |
| 6 | NASA (U.S. National Aeronautics and Space Administration) | 2 | |
| 7 | Zhejiang University of Technology | 1 | |
| 8 | Dr. Vidhika Tiwari | 1 | |
| 9 | Mundrathi Saikiran | 1 | |
| 10 | M. Dharani | 1 |
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 11 | Xi’an Jiaotong University | 1 | |
| 12 | P. Saritha | 1 | |
| 13 | Mitsubishi Rayon Co., Ltd. | 1 | |
| 14 | R. B. Senthilrajan | 1 | |
| 15 | Nantong University | 1 | |
| 16 | Chaitanya Krishna Chowdary Prathi | 1 | |
| 17 | Changshu Institute of Technology | 1 | |
| 18 | Shaoxing University | 1 | |
| 19 | Naval Aviation University (PLA) | 1 | |
| 20 | Dr. M. Kalaimani | 1 |
JAXA’s lead in G01N 29 (ultrasonic material analysis) signals that aerospace-grade inspection remains the defining use case. The absence of major industrial manufacturers from the top positions suggests commercial exploitation of these methods is still maturing.
The most recent 18–24 months of filings are subject to publication lag and are therefore under-counted in the current dataset; the true recent filing rate is likely higher than visible figures suggest. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Multi-year filing growth of 180% driven by material analysis and emerging AI branches
Two signals define the field’s current trajectory: a sustained rise in annual filings since 2017 and a technology mix that is heavily anchored in G01N testing methods but shows nascent diversification into AI and digital-processing branches.
Annual filing trend
Filings were sparse from 2017 through 2021, then stepped up meaningfully from 2022 onward. The 2024 peak of 6 records and the 2025–2026 figures should be read as floor values given publication lag; the underlying activity level for recent years is almost certainly higher.
↗ Hover for values · click a bar to ask EurekaTechnology composition
G01N (material analysis and testing) is visible in with 27 patent records, consistent with the field’s core focus on ultrasonic inspection. B29C (shaping of plastics, relevant to in-process monitoring) holds 9 records. G06N (AI models) and G06F (digital data processing) together account for 7 records, pointing to early-stage integration of machine-learning interpretation into QC workflows.
↗ 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.
Applications of the wavelet synchrosqueezed transf…
A method for ultrasonic inspection of fused filament fabrication (FFF) manufactured samples and of carbon fiber reinforced polymer (CFRP) laminates is disclosed that includes performing a time-frequency transforms including the short-time Fourier transform (STFT) and the wavelet synchrosqueezed transform (WSST), inspecting features in FFF manufactured… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Method and system for non-destructive testing of c… | 36 |
| 2 | Method for forming standard flaw for non-destructi… | 29 |
| 3 | Method and system for non-destructive testing of c… | 20 |
| 4 | Ultrasonic Test Method And Ultrasonic Test Instrum… | 11 |
| 5 | 一种基于频域调控的超声导波相控阵CFRP缺陷检测方法 | 10 |
| 6 | 基于局部线性嵌入和聚类分割的复材内部缺陷检测方法 | 6 |
| 7 | Automated Wave Guide System for In-Process Monitor… | 6 |
| 8 | 碳纤维复合材料红外热成像分层缺陷面积自动计算方法 | 5 |
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.
Japan Aerospace Exploration Agency
JAXA holds 6 patent records, all concentrated in G01N 29 (ultrasonic material analysis and testing), making it the most focused and highest-volume filer in the corpus. Its position reflects a long-standing institutional mandate for aerospace-grade composite inspection. Momentum data marks JAXA as an established presence; its depth in core ultrasonic methods means challengers must differentiate on automation, signal processing, or AI integration to avoid direct overlap.
6 patent recordsBaylor University
Baylor University holds 4 patent records with a new-entrant momentum trend, indicating its activity is concentrated in the recent filing window. Its technical focus spans G01N 29 (ultrasonic testing), G01B 17 (dimensional measurement by ultrasound), and G01N 15 (particle and pore characterization), giving it a broader methodological range than JAXA. This multi-branch approach positions Baylor as a potentially versatile licensor if it continues to expand its portfolio.
4 patent recordsFrequently asked questions
The corpus covers 26 patent families in scope. The applicant ranking is derived from patent records, which can exceed the family count because a single family may be counted under multiple IPC classes or jurisdictions.
Japan Aerospace Exploration Agency (JAXA) leads with 6 patent records, all concentrated in G01N 29 (ultrasonic material analysis and testing). Baylor University ranks second with 4 patent records.
The field is classified as Growth. Annual filings have risen 180% over the measured window, and the 2024 peak has not yet eased. The most recent filing years are under-counted due to publication lag, so the true recent rate is higher than visible figures indicate.
China leads with 18 patent records, followed by the United States with 7 and the EPO with 3. Canada, India, and South Korea each have 2 records. Japan and WIPO each have 1 record.
One co-applicant partnership is documented in the evidence: Human Composites and the Industry-Academic Cooperation Foundation of Woosuk University co-filed 2 patent records together. No other collaboration pairs are recorded in the current corpus.
The sparsest adjacent branches relative to the visible G01N core are G06N (AI models, 4 records), G06F (digital data processing, 3 records), B25J (robotic manipulators, 2 records), G01B (dimensional measurement, 2 records), and G06K (data recognition, 2 records). These are observations of relative underrepresentation; technical value and entry feasibility vary by branch.
Built on Patsnap Open Platform
This report’s underlying patent dataset — filings, assignees, technology clusters — is open for developers via MCP and REST API. Free to start, 10,000 credits, no credit card required.
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.