Battery Passport Patents: Leaders, Trends & White Space 2026
- Filing peaked in 2022 at 8 records, then flattened — the dataset shows no sustained growth curve through the most recent filing years.
- One company holds 11 families, against a field where fifth place holds just 1 — a steep drop-off rather than a gradual tail.
- Business-process claims (G06Q) appear in 64.3% of the 14 records, well ahead of battery hardware classes, showing this field is being claimed as a data and administrative system first.
What battery passport patents actually cover
Battery passport and compliance data patents describe how a battery’s identity, composition, and lifecycle history are captured, structured, and made available to regulators, supply-chain partners, and end users. The claims in scope span data models for battery attributes, carbon footprint calculation methods, supply chain data confidentiality controls, and mechanisms for meeting regulatory deadline compliance. This is less a battery-chemistry field than a data-systems one: the dominant IPC classes point to business-process and digital-transmission claims sitting on top of battery hardware, not new cell designs.
The 14 records in scope run from 2017 through the 2026 cut-off, with filings concentrated around a single peak year. Because publication typically lags filing by around 18 months, the most recent year is undercounted and should not be read as a decline in actual filing activity.
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Filing trend and technology composition
The trend line and the IPC breakdown below are drawn from the same 14-record dataset, using the denominators stated for each figure.
A single peak, not a growth curve
Filings were at 0 in 2017, rose to a peak of 8 in 2022, and the midpoint year matches the peak — meaning the second half of the window is flat or declining rather than accelerating. Treat the 2026 figure as partial given publication lag.
Business-process classes dominate
G06Q (business, commerce & admin data processing) appears in 64.3% of the 14 records and H04L (digital information transmission) in 50.0%, both ahead of H01M (batteries, cells & fuel cells) at 28.6%. Smaller classes — B42D, B60L, C08F, G01R — each sit at a single record (7.1%), marking narrow, specific claim niches rather than crowded ground.
Shares are the percentage of the 14 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Battery Passport and Compliance Data Systems with Eureka
This page is one run against one query. Ask Eureka your own question about battery passport and compliance data systems and every answer comes back with the patent numbers behind it.
Try EurekaThe most-cited and most representative filings
WO2025210148A1 — Systems and methods for validating and generating battery passports (BASF SE, 2025-10-09)
The invention relates to the field of sustainability, in particular to the field of sustainable industrialization. The disclosure relates to methods, apparatuses, systems, and computer elements for validating an amount of data accessible for generating and/or updating a battery passport associated with a battery. The disclosure further relates to methods, apparatuses, systems, and computer elements for generating or updating a battery passport associated with a battery. The disclosure further relates to a battery associated with a battery passport generated and/or updated as disclosed herein and to a battery passport associated with a data completeness metric generated as disclosed herein.Abstract excerpted from the published filing.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | WO2023117957A1 | Battery passport | 11 |
| 2 | US20250132404A1 | Battery passport | 2 |
| 3 | CN121616307A | 一种基于区块链的动力电池数字化管理方法 | 1 |
Citation counts inside a searched corpus favour older filings; read them as a signal of influence within this set, not as a measure of current importance.
Patent titles are shown in the language they were filed in, not translated, so that each record stays verifiable against the original filing — a translated title will not match in Eureka or in any national register. Publication numbers are shown where the record carries one (3 of 3 rows); clicking a row searches Eureka by that number.
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Browse MCP servers →What the pattern means for filing strategy
Three structural features stand out once the trend, the technology split, and the citation data are read together.
Growth already flattened
With the midpoint year matching the peak, this is not a field still accelerating into the current filing window. Recent-year momentum by assignee shows multiple leading filers at 0 filings in the latest year with -100% YoY, consistent with a post-peak plateau rather than emerging demand.
One filer, then a steep drop
The ranking of 9 companies shows a sharp gap between the leading assignee and the rest, rather than a smooth long tail. That pattern is worth watching if a new entrant is deciding whether to file adjacent to the leader's claim set or route around it entirely.
Data-systems claims outnumber battery-hardware ones
H04L and G06Q classes appear far more often than H01M, meaning most claims in this set describe how compliance data is structured, transmitted, and validated rather than new battery chemistry or cell architecture.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to battery passport and compliance data systems, with the prior art for and against each one.
| Assignee | Co-assignee | Shared families |
|---|---|---|
| MR VEDANT DHANANJAY MANKAR | MR AMARTYA KRISHNADITYA | 1 |
| MR VEDANT DHANANJAY MANKAR | DR DIVYA Y CHIRAYIL | 1 |
| MR VEDANT DHANANJAY MANKAR | DR DHANANJAY MANKAR | 1 |
| MR VEDANT DHANANJAY MANKAR | DR BABAN K MORE | 1 |
| MR VEDANT DHANANJAY MANKAR | ADV AKSHAY P DHAGE | 1 |
| MR AMARTYA KRISHNADITYA | DR DIVYA Y CHIRAYIL | 1 |
| MR AMARTYA KRISHNADITYA | DR DHANANJAY MANKAR | 1 |
| MR AMARTYA KRISHNADITYA | DR BABAN K MORE | 1 |
Only 10 co-assignee pairs appear across the dataset, and the strongest pairs are individual inventors rather than corporate joint filings — evidence of a field still dominated by solo corporate filers rather than consortium-style development.
The ranked assignees and where the gaps sit
The assignee ranking returned for this search covers 9 companies, led by one filer with 11 families against a fifth-place holder with just 1 — a field still shaped by a single dominant applicant rather than a broad competitive set.
A single filer sets the pace
The leading assignee's family count is an order of magnitude ahead of the rest of the ranking, indicating an early, sustained investment in battery passport data systems rather than a reactive filing pattern.
A mix of established firms and individual inventors
The ranking includes established battery and electronics manufacturers alongside individual named inventors, suggesting parts of the compliance-data space are still open enough for small teams to stake claims.
Europe is the primary filing venue
Six of the 14 records were filed through the European Patent Office, with WIPO/PCT, India, and single filings in AT, China and the United States making up the rest — a pattern consistent with EU battery regulation driving early compliance-data filings.
| Assignee | Recent year | YoY |
|---|---|---|
| BASF SE | 0 | -100% |
| LG Energy Solution, Ltd. | 0 | — |
| Shanghai Hangxin Electronic Technology Co., Ltd. | 0 | -100% |
| MR VEDANT DHANANJAY MANKAR | 0 | -100% |
| MR AMARTYA KRISHNADITYA | 0 | -100% |
| DR DIVYA Y CHIRAYIL | 0 | -100% |
| DR DHANANJAY MANKAR | 0 | -100% |
| DR BABAN K MORE | 0 | -100% |
Where to take this analysis
The dataset points to specific next questions for teams deciding whether and where to file.
Map the leader's claim boundaries
With one assignee holding 11 of the ranked families, understanding exactly what that filer's claims cover is the first step before drafting anything adjacent in battery passport data structures.
Explore claim scope in EurekaTest the under-claimed branches
The single-record IPC classes — physical document formats, EV-integrated data exchange, material-linked compliance data — are narrow today but could close quickly given the field's regulatory driver.
Run a white space search in EurekaWatch for a post-plateau filing rebound
Recent-year figures showing -100% YoY across several leading filers may reflect publication lag rather than an actual pullback; revisit the trend once later years fill in.
Track filing trends in EurekaCommon questions about battery passport patents
A battery passport patent covers the digital record-keeping side of a battery — data models, attribute schemas, carbon footprint calculation methods, and confidentiality controls for supply-chain data — rather than the chemistry or physical construction of the cell itself. In this dataset, the dominant IPC classes are G06Q (business, commerce & admin data processing) and H04L (digital information transmission), each appearing in a majority of the 14 records, well ahead of H01M (batteries, cells & fuel cells) at 28.6%. That split shows most claims in this space are about how compliance data is structured and moved, not about new battery hardware. A drafting team should therefore expect prior art searches here to surface data-systems and software patents as often as battery patents.
The ranking returned for this search covers 9 companies, with the leading assignee holding 11 families against just 1 at fifth place — a steep concentration rather than a gradual tail. This is a small, specific ranking tied to the search terms used, not a top-50 or top-100 industry list. The gap between the leader and the rest suggests one company made an early, sustained investment in this exact claim space while other filers, including several individual inventors, have entered with single filings.
Based on the trend in this dataset, filings rose from 0 in 2017 to a peak of 8 in 2022, and the midpoint year matches that peak — meaning growth has flattened rather than continuing to accelerate. Several leading assignees show 0 filings in the latest year with -100% YoY momentum. That said, publication typically lags actual filing by around 18 months, so the most recent year or two will always look weaker than it eventually turns out to be; a firm conclusion about decline would be premature.
The smallest IPC classes in this dataset — B42D (printed document formats), B60L (EV propulsion integration), C08F (addition polymers) and G01R (electric measurement) — each account for just one of the 14 records, or 7.1%. That is thin enough to suggest under-claimed territory around physical passport document formats, EV-integrated passport data exchange, and measurement systems that feed compliance records directly, rather than crowded ground. A team targeting these branches should still run a full freedom-to-operate search, since a single record can still carry a broad claim.
Of the 14 records in this dataset, 6 were filed through the European Patent Office, 3 through WIPO under the PCT, 2 through India, and single filings each through Austria, China and the United States. The EPO's lead is consistent with EU battery regulation creating early regulatory pressure for digital compliance records. Teams evaluating filing strategy should note the PCT filings as likely candidates for later national-phase entry into additional jurisdictions.
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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.