Brake By Wire Patents: Top Companies & Filing Trends 2026
Filing growth compares 2021 (405 records) with 2024 (262) — a three-year span. 2024 is the most recent year we treat as complete: publication lags filing by roughly 18 months, so 2025 onwards are still filling in and any growth rate that ends there would understate the field. Top-5 share is the combined record count of the five largest assignees divided by all 52,694 records in scope (CR5), not by the ranked leaders only.
What the brake-by-wire patent record shows
The search string behind this dataset covers 52,694 published records filed between 2015 and mid-2026, spanning everything from core electro-hydraulic and electro-mechanical brake actuation to adjacent mechanical braking hardware swept in by the broader “brake” and “wire” terms. That breadth matters: subclasses like B62L (cycle brakes) and B65H (web, sheet & filament handling) sit inside the same corpus as core vehicle brake-by-wire filings under B60T and F16D, so the technology composition below reflects a wider net than a narrowly scoped automotive-only query would return.
No single assignee dominates the field. The ranked leader holds 799 records against a field of 52,694, and the top 10 combined reach only 7.2% of all records in scope — concentration is modest, and the bulk of filing activity comes from a long tail of companies each holding a small slice of the whole.
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Filing trend and technology composition
Filing volume, receiving-office spread and IPC composition together show where activity is concentrated and where it has migrated over the past decade.
A decade of filing activity, with a post-2021 pullback
Filings peaked in 2017 at 508 records and have not returned to that level since. Between 2021 (405 records) and 2024 (262 records) — the most recent year the dataset treats as complete — filing volume fell 35%. Years after 2024 in the raw counts understate true activity, since publication typically lags filing by around 18 months; the apparent drop into 2025 and 2026 should not be read as a continued decline until later data fills in.
Core vehicle brake classes carry the density
B60T (vehicle brakes & braking) covers 7.6% of all 52,694 records and F16D (clutches & brakes) covers 4.7%, together anchoring the corpus in core braking hardware. Beyond that, B65H (web/sheet/filament handling) at 2.0% and B62L (cycle brakes) at 1.4% show the query's reach into non-automotive mechanical braking, while B62D (steering), B60K (propulsion/drive) and B60W (hybrid control) each sit near or just above 1% — smaller but relevant slices where brake-by-wire logic intersects vehicle-level control systems.
Shares are the percentage of the 52,694 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
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Try EurekaA foundational brake-by-wire filing
US5749633A — Brake by wire system
Filed by Delphi Technologies and published in 1998, this record describes a wheel brake with a dual-piston caliper assembly that supports a brake-by-wire add-on system with dual-level manual override. A pressure control block directs master-cylinder fluid pressure to both pistons in manual mode, while an electro-hydraulic modulator generates operating pressure in brake-by-wire mode and communicates with the same pressure control block.One of the earliest records in this corpus to use the term 'brake by wire' directly in its title, making it a natural reference point for freedom-to-operate review in electro-hydraulic override architectures.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20060041188A1 | Flexible endoscope | 1,790 |
| 2 | US20060259073A1 | Surgical instrument | 1,755 |
| 3 | US20040092992A1 | Disposable battery powered rotary tissue cutting instruments and methods therefor | 1,349 |
| 4 | US4027746A | Center-pull type caliper brake for a bicycle | 1,031 |
| 5 | US4679460A | Brake lever device | 1,021 |
| 6 | US5942979A | On guard vehicle safety warning system | 744 |
| 7 | US5581464A | Recording of operational events in an automotive vehicle | 699 |
| 8 | US6227689B1 | Illumination device for exterior mirror | 632 |
| 9 | US5895416A | Method and apparatus for controlling and steering an electric field | 616 |
| 10 | US3557780A | Mechanism for controlling flexure of endoscope | 571 |
Citation counts favour older records simply because they have had longer to accumulate citations inside this searched corpus — treat them as a signal of influence on the field, not as a measure of current commercial relevance.
Each row carries its publication number; clicking a row searches Eureka by that number.
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Three patterns stand out once the ranking, trend and IPC data are read together: modest concentration at the top, a post-2021 pullback that predates the publication lag, and claim density sitting squarely in core brake hardware rather than the newer vehicle-control layers.
No single company controls the field
The ranked leader holds 799 records and the top 10 assignees combined reach only 3,771 — 7.2% of all 52,694 records in scope. That leaves the overwhelming majority of filing activity spread across a long tail of smaller players, which means freedom-to-operate risk is diffuse rather than concentrated on one or two blocking portfolios.
Activity has cooled since its 2017 peak
Filings peaked at 508 in 2017 and fell to 262 by 2024, a 35% decline from the 405 filed in 2021. Because publication lags filing by roughly 18 months, the still-lower counts for 2025 and 2026 in the raw trend are incomplete rather than evidence of a continuing slide.
Core vehicle-brake claims dominate the corpus
B60T and F16D together anchor the field in core braking hardware, while B62D, B60K and B60W — the vehicle-steering, propulsion and hybrid-control subclasses where brake-by-wire logic increasingly has to integrate — each sit near or just above 1%. That gap is where system-level integration claims remain comparatively open.
Filing is spread across several major offices
The United States leads at 7,410 filings, ahead of the United Kingdom at 4,743 and the EPO at 3,019; WIPO PCT filings (1,437) show a meaningful share of applicants pursuing multi-jurisdiction protection from the outset rather than filing nationally first.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to ev platform & chassis: brake by wire patent landscape, with the prior art for and against each one.
Where to take this analysis
The dataset points to a field with room at the edges rather than a single blocking portfolio to design around.
Map the integration layer
B62D, B60K and B60W each carry roughly 1% of records against 7.6% for core B60T brake claims — the vehicle-control integration layer around brake-by-wire is comparatively under-claimed and worth a deeper subclass-level pull.
Explore white space in EurekaWatch the post-2021 pullback
The 35% drop from 2021 to 2024 is real but the 2025–2026 figures are still filling in under the publication lag; re-run the trend once more recent years settle before drawing conclusions about a slowdown.
Track filing trends in EurekaCheck the long tail for licensing targets
With the top 10 assignees holding only 7.2% of all records, the long tail of single- and few-filing entrants is where licensing or acquisition targets are more likely to sit unexamined.
Search the assignee ranking in EurekaCommon questions on brake-by-wire patents
No single company dominates this field. The ranked leader in this dataset holds 799 records out of 52,694 in scope, and the top 10 assignees combined account for only 7.2% (3,771 records) of the total. That means the field is best understood as a long tail of moderately sized portfolios rather than a market controlled by one or two players, so a freedom-to-operate review needs to check well beyond the largest handful of filers.
Filing peaked in 2017 at 508 records and declined to 262 by 2024, a 35% drop from the 405 filed in 2021. However, publication typically lags filing by around 18 months, so the lower counts visible for 2025 and 2026 are provisional and will rise as more records publish. The honest read is a cooling trend through 2024, not a confirmed continued decline into the most recent years.
The dataset's core classes are B60T (vehicle brakes & braking), covering 7.6% of all 52,694 records, and F16D (clutches & brakes) at 4.7%. Smaller but relevant subclasses include B62D (motor vehicles & steering), B60K (vehicle propulsion & drive) and B60W (hybrid/joint vehicle control), each near or just above 1% of records — these mark where brake-by-wire logic intersects broader vehicle control systems. Because a single record can carry multiple IPC codes, these shares add up to more than 100% and should not be summed into a single total.
US5749633A, filed by Delphi Technologies and published in 1998, describes a dual-piston caliper brake with a pressure control block that switches between manual master-cylinder pressure and electro-hydraulic modulator pressure in brake-by-wire mode. Its claims are relevant to any architecture using a manual-override hydraulic path alongside an electro-hydraulic actuation path feeding the same caliper. Given its age, the patent itself is likely expired or near expiry in most jurisdictions, but it remains a key prior-art reference for override-architecture claims filed since.
The United States receives the most filings in this dataset at 7,410, followed by the United Kingdom at 4,743 and the European Patent Office at 3,019. WIPO's PCT route accounts for 1,437 filings, indicating that a meaningful share of applicants seek multi-jurisdiction coverage from a single international application rather than filing separately in each national office. Australia (1,061) and Canada (794) round out the top receiving offices tracked.
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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.