Maglev Signaling & Train Control Patent Landscape 2026
CRRC Qingdao Sifang leads a China-dominated field that peaked in 2021 and has since eased, with the top five filers holding 29% of the hundred largest filers’ combined output. Electric vehicle propulsion (B60L) is the dominant technology branch, while railway traffic control and track infrastructure attract markedly less coverage.
CRRC Qingdao Sifang leads a field dominated by Chinese rail OEMs and state research institutes
CRRC Qingdao Sifang Co Ltd holds the top position with 21 patent records, followed by CRSC Research & Design Institute Group Co Ltd with 14. Three further applicants — Hiwing Tech Academy of CASIC, SkyTran Inc, and Zhuzhou Electric Locomotive Co Ltd — tie at 9 patent records each, rounding out the top five.
The top five filers account for 29% of the hundred largest filers’ combined total, indicating a moderately concentrated field rather than a monopolar one. A second tier of applicants clustering between 6 and 9 patent records shows that competitive depth exists, but no challenger has yet closed the gap to the leader.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | CRRC Qingdao Sifang Co Ltd | 21 | |
| 2 | CRSC RESEARCH & DESIGN INSTITUTE GROUP CO LTD | 14 | |
| 3 | Hiwing Technology Academy of CASIC | 9 | |
| 4 | SkyTran Inc | 9 | |
| 5 | Zhuzhou Electric Locomotive Co Ltd | 9 | |
| 6 | SVENSSON | 8 | |
| 7 | Southwest Jiaotong University | 8 | |
| 8 | CRRC Tangshan Co Ltd | 7 | |
| 9 | National University of Defense Technology | 6 | |
| 10 | Zhuzhou CSR Times Electric Co Ltd | 6 |
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 11 | Tongji University | 5 | |
| 12 | JIANGXI UNIV OF SCI & TECH | 5 | |
| 13 | Beijing Jiaotong University | 4 | |
| 14 | Hyundai Rotem Co | 3 | |
| 15 | Jiuzhou Yuntong (Beijing) Superconducting New Technology Industry Development Co Ltd | 3 | |
| 16 | UNION SWITCH & SIGNAL INC | 3 | |
| 17 | Beijing Enterprises Holdings Maglev Technology Development | 3 | |
| 18 | CRRC Zhuzhou Electric Locomotive Research Institute Co Ltd | 3 | |
| 19 | Siemens AG | 3 | |
| 20 | Fujian Normal University | 3 |
The leaders’ positions reflect. China’s national rail-technology investment cycle, with CRRC group entities and state-linked research institutes occupying four of the top five slots. The lone non-Chinese top-five entrant, SkyTran Inc, signals that lightweight personal-transit maglev concepts attract independent innovation activity outside the mainline rail establishment.
Filings from 2024 onward are subject to publication lag and will likely grow as pending applications are published; the apparent trough in 2025–2026 data should not be read as a sustained contraction. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
A 2021 peak followed by easing volume, with propulsion tech dominating the branch mix
Annual filings surged from 4 records in 2017 to a peak of 28 in 2021, then eased to the mid-teens range in subsequent years. The technology composition is heavily skewed toward B60L (electric vehicle propulsion), with railway traffic control and track infrastructure as secondary clusters.
Annual filing trend
The filing curve rose sharply through 2021 and has since moderated; 2025 and 2026 figures are undercount due to publication lag and should not be interpreted as continued decline.
↗ Hover for values · click a bar to ask EurekaTechnology composition
B60L (electric vehicle propulsion) dominates, reflecting the centrality of maglev drive systems; B61L (railway traffic control) and B61B (railway systems) form a meaningful secondary cluster, while sensing, electromagnetics, and wireless communication branches remain sparsely covered.
↗ 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.
一种磁浮列车的控制方法及相关装置
一种磁浮列车的控制方法、装置、设备以及计算机可读存储介质，涉及列车控制技术领域，包括：创建轨道标定信息；所述轨道标定信息包括轨缝编号、所述轨缝编号对应的位置坐标以及间隙值；定位磁浮列车的实时坐标；当所述轨道标定信息中存在与所述磁浮列车的实时坐标一致的所述位置坐标时，识别所述位置坐标对应的所述轨缝编号；以所述轨缝编号对应的所述间隙值作为额定间隙值进行调参。该方法能够有效维持磁浮列车平稳悬浮，保障磁浮列车的舒适性与安全性。 (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Integrated high speed maglev system utilizing an a… | 89 |
| 2 | People & Cargo Transit Systems & Vehicles | 87 |
| 3 | Monorail system | 87 |
| 4 | Integrated high speed MAGLEV system | 76 |
| 5 | Laminated track design for inductrack maglev systems | 67 |
| 6 | Monorail system | 66 |
| 7 | Multiple magnet positioning apparatus for magnetic… | 64 |
| 8 | Laminated track design for inductrack maglev systems | 58 |
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.
What the competitive structure means for R&D investment decisions
The field is in a post-peak normalization phase with a concentrated but not monopolar competitive structure, active industry–university collaboration, and strong geographic concentration in. China.
Post-peak normalization following a 2021 surge
The lifecycle stage is classified as Decline, with annual filings easing back from the 2021 peak of 28 records. The multi-year window still encompasses substantial accumulated output across 134 patent families, meaning the knowledge base is rich but the rate of new claim-staking has slowed. Entrants should assess whether foundational claims in propulsion and control are already well-covered before allocating resources to adjacent branches.
Lifecycle: Post-peakModerate concentration with a clear leader but competitive second tier
CRRC Qingdao Sifang’s 21-record lead is meaningful but not insurmountable; the next four applicants each hold 9–14 records. The top five filers’ 29% share of the hundred largest filers’ combined total leaves room for challengers to build differentiated positions, particularly in branches less covered by the current leaders such as sensing, electromagnetics, and wireless communications.
Concentration: ModerateIndustry–university co-filing is active, led by CRRC Qingdao Sifang and Beijing Jiaotong University
The most frequent co-filing pairs are CRRC Qingdao Sifang Co Ltd with Beijing Jiaotong University (3 joint records) and Southwest Jiaotong University with Jiangxi University of Science and Technology (3 joint records). Additional pairings link CRRC Qingdao Sifang with Central South University, and Hiwing Tech Academy of CASIC with the Shanxi High-Speed Flying Vehicle Laboratory. This pattern suggests that applied engineering improvements typically originate from OEM-university partnerships rather than intra-industry alliances.
Collaboration: Industry–UniversityChina is the dominant filing office; meaningful but thin coverage in the US and via PCT
China accounts for 108 patent records, the United States for 34, WIPO (PCT) for 14, and Europe (EPO) for 12. South Korea and Canada each hold 5 records. The lopsided China-to-rest-of-world ratio means that technologies developed outside China may find relatively open space in the Chinese filing landscape, and vice versa — Chinese-originating portfolios are thinly protected in Western markets.
Geography: China-ledGo beyond the landscape: Eureka’s TRIZ Solution agent breaks down an R&D problem and returns patented concept solutions, each with a technical approach and cited patent & literature evidence.
| Applicant | Collaborator | Co-filings |
|---|---|---|
| CRRC Qingdao Sifang Co Ltd | Beijing Jiaotong University | 3 |
| Southwest Jiaotong University | Jiangxi University of Science and Technology | 3 |
| CRRC Qingdao Sifang Co Ltd | Central South University | 1 |
| Hiwing Technology Academy of CASIC | Shanxi High-Speed Flying Vehicle Laboratory | 1 |
| Southwest Jiaotong University | Changzhou Southwest Jiaotong University Rail Transit Research Institute | 1 |
| Southwest Jiaotong University | China Railway Fourth Survey and Design Institute Group Co Ltd | 1 |
| Jiangxi University of Science and Technology | Ganjiang Innovation Academy, Chinese Academy of Sciences | 1 |
| CRRC Tangshan Co Ltd | Beijing Jiaotong University | 1 |
| Zhuzhou CRRC Times Electric Co Ltd | CRRC Zhuzhou Electric Locomotive Research Institute Co Ltd | 1 |
Co-filing pairs, ranked by the number of jointly-filed patent families.
CRRC Qingdao Sifang leads on propulsion; CRSC Research & Design Institute surges as a new entrant in traffic control
The top two players differ in technology emphasis: the leader concentrates on maglev propulsion and locomotive systems, while the principal challenger focuses on railway traffic control signaling. Both have recent filing activity, though the leader shows a slight downward trend.
CRRC Qingdao Sifang Co Ltd
Holding 21 patent records, CRRC Qingdao Sifang is the clear field leader. Its technology emphasis sits squarely in B60L (electric vehicle propulsion, 17 records) and extends into B61C (locomotives and railcars, 6 records) and B61L (railway traffic control, 5 records). Recent momentum shows a modest decline (▼ –10% in the recent period versus the prior window), suggesting the company is consolidating its position rather than aggressively expanding its claim surface.
patent records: 21CRSC Research & Design Institute Group Co Ltd
With 14 patent records and a new-entrant momentum trajectory (▲ new entrant), CRSC Research & Design Institute Group is the fastest-rising challenger. Its focus on B60L (9 records) combined with strong coverage of B61L railway traffic control (13 combined records across two subclasses) differentiates it from the leader and positions it as the specialist in the signaling and control side of maglev systems.
patent records: 14| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| CRRC Qingdao Sifang Co Ltd | 9 | ▼ -10% |
| CRSC Research & Design Institute Group Co Ltd | 9 | ▲ new entrant |
| CRRC Zhuzhou Electric Locomotive Co Ltd | 4 | ▲ new entrant |
| Hiwing Technology Academy of CASIC | 6 | ▲ new entrant |
| Southwest Jiaotong University | 1 | ▲ new entrant |
| Jiangxi University of Science and Technology | 1 | ▲ new entrant |
| Zhuzhou CRRC Times Electric Co Ltd | 1 | ▲ new entrant |
Under-served branches in running gear, electromagnetics, and motor design
Several IPC branches with direct technical relevance to maglev systems show low absolute coverage relative to the dominant propulsion and control classes. These are observations of relative sparsity; entry viability depends on technical differentiation and freedom-to-operate analysis.
H01F · Magnets, Inductors & Transformers
With only 10 patent records and a 2% share among the top branches, H01F covers the core electromagnetic components — superconducting coils, permanent magnets, and inductive elements — that underpin maglev levitation and guidance. Given that virtually every maglev system depends on these components, the sparsity is notable and may reflect that foundational magnet design is treated as materials science rather than rail-system IP. Organizations with electromagnetics expertise in adjacent sectors (power electronics, MRI, particle accelerators) may find a realistic entry path through cross-domain application.
Search this in Eureka →H02K · Electric Motors & Generators
H02K holds 10 patent records at a 2% share, despite linear induction and synchronous motors being the primary propulsion mechanism in most maglev architectures. Coverage here is sparse relative to the broader B60L propulsion cluster, suggesting that motor-level innovation — rotor-less linear motor geometry, winding optimization for high-speed operation, thermal management — is an under-claimed area. Entrants with linear motor design capabilities, particularly those active in industrial automation or EV drivetrain development, represent a plausible route into this space.
Search this in Eureka →How leading filers differ by technology route across propulsion, control, and infrastructure
Route coverage across the main technology branches in the current evidence set.
| Player | B60L 13 · Electric vehicle propulsion | B61B 13 · Railway systems & cableways | E01B 25 · Railway track & permanent way | B61L 25 · Railway traffic control | B61L 27 · Railway traffic control |
|---|---|---|---|---|---|
| SVENSSON | Strong · 14 | Strong · 13 | Strong · 13 | Absent | Absent |
| CRRC Qingdao Sifang Co Ltd | Strong · 17 | Emerging · 3 | Absent | Moderate · 5 | Emerging · 2 |
| CRSC Research & Design Institute Group Co Ltd | Strong · 9 | Absent | Absent | Strong · 6 | Strong · 7 |
| Hiwing Technology Academy of CASIC | Strong · 5 | Strong · 3 | Absent | Strong · 3 | Strong · 3 |
| Southwest Jiaotong University | Strong · 8 | Moderate · 4 | Absent | Absent | Absent |
| Jiangxi University of Science and Technology | Strong · 7 | Moderate · 3 | Absent | Moderate · 2 | Absent |
Frequently asked questions
The corpus encompasses 134 patent families in scope. Patent records across filing jurisdictions exceed this total because a single family can be filed in multiple offices.
CRRC Qingdao Sifang Co Ltd leads with 21 patent records, followed by CRSC Research & Design Institute Group Co Ltd with 14. Both are Chinese state-linked rail entities.
Activity peaked at 28 records in 2021 and has since eased. The lifecycle is assessed as post-peak. Figures for 2025 and 2026 are subject to publication lag and should not be read as representing the final annual totals for those years.
China dominates with 108 patent records. The United States follows with 34, then WIPO (PCT) with 14 and Europe (EPO) with 12. South Korea and Canada each account for 5 records.
B60L (electric vehicle propulsion) is the dominant branch with 169 patent records. B61L (railway traffic control) and B61B (railway systems) form a secondary cluster. H01F (magnets, inductors and transformers), H02K (electric motors and generators), and B61F (railway running gear and bogies) are the most sparsely covered branches with direct technical relevance to maglev systems.
Yes. The most frequent co-filing pairs are CRRC Qingdao Sifang with Beijing Jiaotong University (3 joint records) and Southwest Jiaotong University with Jiangxi University of Science and Technology (3 joint records). Additional joint filings link CRRC Qingdao Sifang with Central South University, and Hiwing Tech Academy of CASIC with the Shanxi High-Speed Flying Vehicle Laboratory.
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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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