Brake Performance Testing Patents: Who Leads, Where Gaps Are 2026
Brake Performance Testing and Certification Patents
75.5% concentration. The top 5 of 49 ranked assignees account for 160 of the 212 records in scope — a field with a dominant leader and a long tail below it. Filings rose from 3 in 2017 to a peak of 40 in 2020, then eased; the 2021-to-2024 comparison (3 to 2, a -33% change) is the most recent span that can be read as complete, since publication lags filing by roughly 18 months and 2025-2026 figures are still filling in.
- 1SUMITOMO RUBBER INDUSTRIES LTD114
- 2L B FOSTER RAIL TECHNOLOGIES CORP14
- 3DURAFILM CORP12
- 4AUVINEN JUKKA10
- 5MICHELIN & CO (CIE GEN DES ESTAB MICHELIN)10
See the full brake performance testing and certification analysis in Eureka
- The complete ranking, not just the top five
- Every IPC branch with its share of the corpus
- The most-cited records, and where claim space is still thin
Common questions on this landscape
Who holds the most patents in brake performance testing and certification?
Across the 212 records in this dataset, one assignee holds 114 records, well ahead of the rest of the ranked field. The top five assignees together hold 160 records, or 75.5% of all records in scope, and the top ten hold 184, or 86.8%. This is a concentrated field: a new entrant should expect to negotiate around, or design around, a small number of dominant portfolios rather than facing many similarly sized competitors.
Is patent filing in this space growing or slowing down?
Filing activity peaked in 2020 at 40 records after rising from just 3 in 2017. The most recent complete comparison, 2021 (3 records) to 2024 (2 records), shows a -33% change over that span. Figures for 2025 and 2026 are still incomplete because publication typically lags filing by around 18 months, so it is too early to call the current direction from those years alone.
What technology areas dominate brake performance testing patents?
Pneumatic tyre claims (IPC class B60C) appear in 52.4% of the 212 records and polymer composition claims (C08L) in 50.9%, with additive-use claims (C08K) in 38.2%. Brake-specific claims (B60T) appear in only 14.6% of records and railway auxiliary equipment (B61K) in 5.7%. Because a single record can carry multiple IPC codes, these figures add up to more than 100%, and the practical takeaway is that most filing activity here is materials chemistry for friction surfaces rather than braking mechanisms or control systems.
Disclaimer. This analysis is based on Patsnap Eureka data drawn from a limited snapshot of global patent records and is provided for general information and reference only. Patent data carries inherent limitations — recent filings are under-counted because of publication lag, counts may be on a record or family basis, classification and applicant-name data may contain errors or duplicates, and the underlying search query defines the scope shown — so the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing here is an exhaustive prior-art, novelty, freedom-to-operate or validity search, nor does it constitute legal, financial or professional advice, and it should not be relied upon as such. Verify independently and review with qualified patent and legal professionals before acting on it.
Method: Filing trend and technology composition. Derived from a Patsnap search on Brake Performance Testing and Certification covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish. Every share divides by all records in scope. Data: Patsnap Eureka. See the full landscape report.