Vehicle Battery Patents: Who Leads, Where the Gaps Are 2026
- 18.9% concentration at the top. The five leading assignees account for 6,156 of the 32,615 records in scope, a meaningful but not dominant share that leaves room for challengers.
- Filing growth has cooled, not collapsed. Complete-year filings ran 1,247 in 2021 to 1,088 in 2024, a 13% pullback that follows a 2022 peak of 1,390 rather than a structural decline.
- Measurement and control outrank cell chemistry. B60L propulsion control appears in 19.7% of records versus 11.0% for H01M batteries and cells, showing where claim activity actually concentrates.
Filing growth compares 2021 (1,247 records) with 2024 (1,088) — 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 32,615 records in scope (CR5), not by the ranked leaders only.
What this landscape covers
This dataset spans 32,615 published records filed against vehicle battery and battery-management search terms between 2015 and the August 2026 cut-off, matched against state-of-charge, electrode capacity, electrolyte stability, charge-cycle, vehicle-speed and traction-torque terminology. It captures not just cell chemistry but the control, measurement and estimation layer that sits between a battery pack and a vehicle’s drivetrain — the software and sensor logic that turns raw cell behaviour into range, torque and safety decisions.
Because publication trails filing by roughly 18 months, the most recent one or two years in any trend chart will always look lighter than they eventually turn out to be. Treat 2024 as the last complete year of filing activity and read 2025 onward as still filling in.
Filing trend and technology composition
Two views of the same 32,615-record corpus: how filing volume has moved year over year, and which IPC subclasses carry the claim activity.
A decade of filing, with a 2022 peak
Annual filings rose from 975 in 2017 to a peak of 1,390 in 2022, then eased to 1,088 by 2024 — a complete-year decline of 13% from the 2021 level of 1,247. That is a cooling of pace after a strong run-up, not a reversal; 2025 and 2026 figures are still climbing as publications catch up with filings.
Control and measurement dominate over chemistry
B60L electric vehicle propulsion leads at 19.7% of the 32,615 records, ahead of H02J power supply and grid systems at 13.4% and H01M batteries and cells at 11.0%. Hybrid and joint vehicle control (B60W, 7.1%), propulsion and drive (B60K, 6.9%) and electric measurement (G01R, 6.7%) round out a picture where the fight is over how a battery is managed and monitored as much as how it is built.
Shares are the percentage of the 32,615 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Vehicle Batteries & Management Patent Landscape with Eureka
This page is one run against one query. Ask Eureka your own question about vehicle batteries & management patent landscape and every answer comes back with the patent numbers behind it.
Try EurekaA representative claim and the most-cited prior art
System and method for estimating a remaining energy range of a vehicle and reducing driver range anxiety
The claim covers estimating a vehicle's remaining battery range by combining route characteristics, an energy consumption profile and current state of charge, then calculating an estimated remaining charge at the end of a selected route and acting when that estimate falls below a threshold.Filed by BorgWarner US Technologies LLC, published 2024-05-30 as US20240177528A1.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US6690268B2 | Video mirror systems incorporating an accessory module | 2,387 |
| 2 | US20130201316A1 | System and method for server based control | 1,727 |
| 3 | US6028537A | Vehicle communication and remote control system | 1,578 |
| 4 | US5797134A | Motor vehicle monitoring system for determining a cost of insurance | 1,191 |
| 5 | US5825283A | System for the security and auditing of persons and property | 1,184 |
| 6 | US7195381B2 | Vehicle interior LED lighting system | 1,119 |
| 7 | US9026347B2 | Smart electric vehicle (EV) charging and grid integration apparatus and methods | 1,039 |
| 8 | US8140358B1 | Vehicle monitoring system | 1,028 |
| 9 | US6611755B1 | Vehicle tracking, communication and fleet management system | 1,024 |
| 10 | US6064970A | Motor vehicle monitoring system for determining a cost of insurance | 995 |
Citation counts favour older filings simply because they have had longer to accumulate citations inside this corpus — read them as a signal of influence on the field, not of current technical relevance.
Each row carries its publication number; clicking a row searches Eureka by that number.
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Three read-throughs from the trend, composition and citation data that matter for deciding where to file next.
The top of the field is strong but not closed
The five leading assignees hold 18.9% of all records and the ranked ten hold 26.7%. That leaves roughly three-quarters of filing activity spread across a long tail of automakers, tier-one suppliers and component specialists, which is a workable environment for a well-drafted claim rather than a blocked one.
A cooling curve after a 2022 peak
Filings climbed steadily to 1,390 in 2022 before easing to 1,088 by 2024. That pattern is consistent with a technology area where the core control architecture has been claimed and firms are now filing more selectively rather than racing to stake ground.
Control logic outweighs cell chemistry in claim volume
B60L propulsion-control filings nearly double H01M battery-and-cell filings as a share of the 32,615-record corpus. Firms without deep electrochemistry programmes are still finding room to file around estimation, thermal management and control logic sitting above the cell.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to vehicle batteries & management patent landscape, with the prior art for and against each one.
Who is filing, and where activity is cooling
Automakers and their traditional tier-one suppliers hold the ranked leadership positions, but recent-year momentum has slowed sharply across nearly all of them — consistent with the corpus-wide pullback from the 2022 peak rather than any single company's retreat.
A clear leader, not a runaway one
The leading assignee holds 2,409 records against a fifth-place figure of 611 and a tenth-place figure of 447 — a steep drop-off after the top position but a gentler slope from fifth to tenth, suggesting the mid-tier is where new entrants have room to compete.
Recent-year filings have thinned across the leadership
Several of the most active historical filers show single-digit or zero filings in the latest year, with year-over-year drops as steep as -100%. Given the 18-month publication lag, this reads more like a data-maturity gap than an actual stop in R&D activity — but it means the visible leaderboard for 2025-2026 will look thinner than the underlying filing rate.
Co-assignee filing is rare and concentrated
Only 10 co-assignee pairs appear across the corpus, and the strongest pair by far shares 382 records — an order of magnitude above the next pairs. Most filing here is done by a single corporate entity rather than through joint ventures or university partnerships.
| Assignee | Recent year | YoY |
|---|---|---|
| Ford Global Technologies, LLC | 2 | -92% |
| Denso Corporation | 2 | -80% |
| Robert Bosch GmbH | 1 | 0% |
| GM Global Technology Operations LLC | 0 | -100% |
| Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation) | 0 | -100% |
| Hyundai Motor Company | 0 | -100% |
| Kia Corporation | 0 | -100% |
| Jaguar Land Rover Limited | 0 | -100% |
Where to take this analysis
The dataset points to a field with a strong but open top tier, a cooling but not declining filing pace, and technology weight sitting in control and measurement rather than cell chemistry alone.
Map a specific sub-claim against the corpus
Pick a narrow technical route — range estimation, thermal prediction, or state-of-charge calibration — and check filing density before drafting.
Explore this in EurekaTrack the leadership's recent-year filings as they publish
The 2025-2026 momentum figures will keep rising as publications catch up; revisit assignee-level trends once the lag closes.
Set up monitoring in EurekaCheck white space before committing claim language
Under-claimed branches like route-based range estimation sit adjacent to dense prior art in propulsion control — worth a freedom-to-operate check first.
Run a white space search in EurekaCommon questions about vehicle battery patents
The assignee ranking in this dataset covers 100 companies, with the leading firm holding 2,409 records against 611 at fifth place and 447 at tenth. That is a steep drop from first place but a much gentler slope through the rest of the ranked list, meaning the mid-tier of automakers and suppliers is more contestable than the top position alone suggests. The top five combined account for 18.9% of all 32,615 records in scope, so the majority of filing activity sits outside the leadership group entirely.
Filing activity peaked at 1,390 records in 2022 and has since eased to 1,088 in 2024, a 13% decline over the 2021-2024 window using only complete filing years. That is a cooling of pace after a strong run-up rather than a reversal, and it should not be read as the technology stalling. Because publication lags filing by around 18 months, the apparent drop-off in 2025 and 2026 figures is a data artefact and will fill in as those years' filings are published.
B60L, covering electric vehicle propulsion, appears in 19.7% of the 32,615 records and is the single largest IPC subclass in this corpus. H02J power-supply and grid systems follows at 13.4%, with H01M batteries and cells at 11.0% — notably behind propulsion control despite being the more obvious association with 'battery' patents. This pattern shows that claim activity concentrates as much on how a battery is managed, measured and controlled inside a vehicle as on the cell chemistry itself.
Route-based range estimation, electrolyte stability monitoring, thermal degradation prediction and cross-fleet state-of-charge calibration all sit adjacent to the dense B60L and H01M claim territory without the same filing density. These branches combine established sensor and control patterns with newer estimation logic, which tends to leave narrower claim openings than the core propulsion-control space. A freedom-to-operate check against the specific sub-claim is still advisable before drafting, since adjacency to dense prior art does not guarantee an open path.
Concentration is moderate: the top five assignees hold 18.9% of the 32,615 records in scope and the top ten hold 26.7%. That leaves close to three-quarters of all filing activity distributed among a long tail of other automakers, tier-one suppliers and component specialists. Co-assignee filing is rare in this field — only 10 pairs are identified across the whole corpus — so most companies are filing independently rather than through joint patenting arrangements.
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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.