High-Speed Rail Vehicle Testing Patent Snapshot
This is a small, highly concentrated field dominated by Chinese academic institutions, with Jilin University holding a commanding share of all ranked patent records. Filing activity peaked in 2019 and has since retreated, signalling a mature or declining phase rather than an expanding frontier.
Jilin University leads a field concentrated among Chinese universities
Jilin University is the clear leader, holding 5 patent records — the single largest position among all ranked applicants. The next closest filer, Shanghai Institute of Technology, holds 2 patent records, while six other applicants each hold 1.
The top five filers collectively account for 77% of the combined total among the ranked applicants visible in this query, indicating a highly concentrated visible assignee structure with a sharp drop-off after the first tier. All ranked applicants are Chinese entities, split between universities and a small number of industry players.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | Jilin University | 5 | |
| 2 | Shanghai Institute of Technology | 2 | |
| 3 | Southwest Jiaotong University | 1 | |
| 4 | Central South University | 1 | |
| 5 | Shijiazhuang Tiedao University | 1 | |
| 6 | CRRC Qingdao Sifang Co., Ltd. | 1 | |
| 7 | BEIJING INST OF STRUCTURE & ENVIRONMENT ENG | 1 | |
| 8 | Tianjin Aerospace Relia Tech Co., Ltd. | 1 |
The dominance of academic institutions — Jilin University, Shanghai Institute of Technology, Southwest Jiaotong University, Central South University, and Shijiazhuang Tiedao University — suggests that foundational test-rig and simulation methodology research is still primarily driven by academia rather than commercial manufacturers. CRRC Qingdao Sifang is the only major rolling-stock manufacturer in the ranked set, pointing to limited industrial IP capture in this specific sub-field.
The corpus covers 6 patent families in scope. Because patent applications typically take 12–24 months to publish, the most recent filing years are likely under-represented in this dataset. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Filing peaked in 2019 and has since eased; physical testing dominates the technology mix
The trend chart captures annual filing activity from 2017 to 2026, while the technology composition chart breaks down the IPC class distribution across all patent records in scope.
Annual filing trend
Activity grew from 1 record in 2017 to a peak of 3 in 2019, then fell to zero in subsequent years. Years from 2022 onward are subject to publication lag and should be read as incomplete rather than as confirmed zero activity.
↗ Hover for values · click a bar to ask EurekaTechnology composition
G01M (Testing machine and structure balance) is overwhelmingly visible, accounting for 11 of the 13 IPC-level records. B61L (Railway traffic control) and G06F (Electric digital data processing) each contribute 1 record, confirming that the field is anchored in physical test-rig methodology with only sparse coverage of control-system and computational approaches.
↗ 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.
Simulation and experiment platform for high-speed …
A simulation platform for a high-speed train braking system and an experiment method. The simulation platform for a high-speed train braking system includes a virtual part and a real part. The virtual part includes: a vehicle multi-rigid-body simulation system, a basic braking simulation system, a dynamic braking simulation system, an additional braking… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Simulation and experiment platform for high-speed … | 30 |
| 2 | 动力机械闭环面对面双齿轮箱侧倾式激振试验台 | 20 |
| 3 | 高速列车制动系统检测试验台 | 14 |
| 4 | 一种高铁列车制动器惯性试验台 | 6 |
| 5 | 高速列车减震器万能型试验台 | 5 |
| 6 | 动力机械闭环面对面双齿轮箱侧倾式激振试验台 | 4 |
| 7 | 一种铁路车钩横向稳定性试验台 | 3 |
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.
Jilin University
Jilin University holds 5 patent records — the highest count among all ranked applicants — concentrated across G01M sub-classes covering vehicle testing, gear-box testing, and vibration testing (G01M17, G01M13, G01M7). No momentum data is available for the most recent periods, so trajectory beyond the 2019 peak cannot be confirmed from the evidence.
patent records: 5CRRC Qingdao Sifang Co., Ltd.
CRRC Qingdao Sifang holds 1 patent record but is distinguished by the broadest IPC spread among all applicants, spanning B61L27 (railway traffic control), G01M17 (vehicle testing), and G06F17 (digital data processing). As the only major rolling-stock manufacturer in the corpus, its presence — however small — suggests an interest in integrating operational control intelligence with physical testing methodology.
patent records: 1Frequently asked questions
The evidence covers 6 patent families in scope. This is a small corpus, and the findings should be interpreted accordingly — any single new filing can materially shift the rankings or technology distribution.
Jilin University leads with 5 patent records, making it by far the most prolific filer in the ranked set. All other applicants hold 1–2 patent records each.
No. The lifecycle stage is Decline. Annual filings peaked at 3 records in 2019 and have eased back since. While the most recent years carry publication-lag uncertainty, the multi-year trend is downward from the 2019 peak.
China is visible in, with 10 of the 13 jurisdiction-level records. The United States accounts for 1 record. No other jurisdictions appear in the evidence, indicating that protection outside China is largely absent in this corpus.
G01M (Testing machine and structure balance) accounts for 11 of 13 IPC-level records. This reflects a field anchored in physical test-rig design — covering vehicle dynamics, gear-box, brake, and vibration testing — rather than software or control-system approaches.
Two co-filing pairs are documented: Southwest Jiaotong University with Shijiazhuang Tiedao University, and Tianjin Aerospace Relia Tech with Beijing Institute of Structure and Environment Engineering. The aerospace-rail pairing is potentially significant for cross-domain reliability methodology transfer, but the overall collaboration network is nascent given the small corpus size.
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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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