Onboard Charger for Off-Highway Vehicles Patent Landscape
The onboard charger space for off-highway vehicles is a nascent, highly concentrated field in which Eaton Intelligent Power holds a commanding position among the largest filers. The field is still expanding on a multi-year basis, though annual volume has eased from its 2020 peak and all applicants tracked so far are new entrants, signalling a market still defining its core IP positions.
Eaton Intelligent Power leads a tightly held, early-stage field
Eaton Intelligent Power Ltd ranks first among all filers, holding 10 patent families — by far the largest individual position in this corpus. Moog Inc follows at 4 patent families, with Cummins Inc at 3, while Kubota Corp, Arctic Cat Inc, Textron Innovations Inc, and Deere & Co each hold 2.
The top five filers collectively account for 75% of the ranked applicants visible in this query’ combined total, marking an unusually tight concentration for an industrial electrification segment. The gap between the leader (10 patent families) and the second-ranked player (4 patent families) is substantial, suggesting Eaton has moved more deliberately to build a structured IP position than its peers.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | Eaton Intelligent Power Ltd | 10 | |
| 2 | Moog Inc | 4 | |
| 3 | Cummins Inc | 3 | |
| 4 | Kubota Corporation | 2 | |
| 5 | Arctic Cat Inc | 2 | |
| 6 | Textron Innovations Inc | 2 | |
| 7 | DEERE & CO | 2 | |
| 8 | Textron Inc | 1 | |
| 9 | Tru Lock Tech LLC | 1 | |
| 10 | Archer Aviation Inc | 1 |
The leaders’ positions imply that foundational charging architecture, protective circuit arrangements, and EV propulsion integration are already staked out by a small cluster of established power-management and off-road equipment companies. New entrants will need to navigate these positions carefully or find differentiated approaches in adjacent sub-classes.
The most recent 18–24 months of filing data are subject to publication lag and are likely understated; apparent softness in 2025–2026 should not be interpreted as a genuine slowdown. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
A 2020 surge established the field; the technology mix is anchored in EV propulsion and protective circuits
The filing trend shows a pronounced burst of activity in 2020 followed by more measured annual volumes, while the technology composition reveals that EV propulsion (B60L) is visible in but protective circuit and power-supply classes carry meaningful secondary weight.
Annual filing trend
Activity was flat before 2020, then a cluster of 7 patent families filed that year established the field’s core IP. Subsequent years have registered lower but consistent volumes; 2024 and 2025–2026 figures are likely understated due to publication lag, so the multi-year growth trajectory — recent three-year filings running double the prior three-year window — remains the more reliable indicator of momentum.
↗ Hover for values · click a bar to ask EurekaTechnology composition
B60L (Electric vehicle propulsion) is represented across all 26 patent families, confirming it as the visible technical axis. H02H (Protective circuit arrangements) and H02J (Power supply and grid systems) together form a significant secondary layer, reflecting charger safety and grid-interface concerns. More peripheral classes — B60K, B62D, B60R, and H01H — each appear in a smaller number of records, pointing to adjacent mechanical integration and switching topics that remain relatively sparse.
↗ 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.
Off-road vehicle
An off-road vehicle includes a frame defining a front of the off-road vehicle and a rear of the off-road vehicle, and a battery assembly supported by the frame. The battery assembly is constructed and arranged to store electric power. The off-road vehicle further includes an electric propulsion motor constructed and arranged to provide off-road vehicle… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Power distribution and circuit protection for a mo… | 77 |
| 2 | Power distribution and circuit protection for a mo… | 40 |
| 3 | Power distribution and circuit protection for a mo… | 28 |
| 4 | Power distribution and circuit protection for a mo… | 16 |
| 5 | Off-road vehicle | 7 |
| 6 | Power distribution and circuit protection for a mo… | 4 |
| 7 | Power distribution and circuit protection for a mo… | 3 |
| 8 | Methods and apparatus for charging with direct cur… | 2 |
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 IP structure means for R&D investment decisions
The combination of high concentration, a growth-stage lifecycle, and all-new-entrant momentum profiles shapes both the risk and the opportunity for teams entering this space.
Growth stage — multi-year expansion with annual easing from 2020 peak
The field is classified as Growth: recent three-year filings sit well above the prior three-year window, confirming that overall IP activity is still expanding on a multi-year basis. However, annual volume has eased from its 2020 peak, so the field is not in a straight-line ramp. Publication lag means the most recent years are further understated, and the true current pace will only be clear once those applications publish.
Growth stageTop five hold 75% of the ranked applicants visible in this query’ combined total
With 75% share concentrated in the top five filers and a large gap between the leader and second-ranked player, this is among the more concentrated early-stage fields. For new entrants, this concentration means foundational EV propulsion and protective-circuit positions are already occupied. The most viable paths lie in differentiated sub-classes or in geographic markets — Canada, Germany, India — that have seen very limited filing activity.
High concentrationTextron and Arctic Cat are the only identified co-filers
The collaboration evidence shows a single co-filing relationship: Textron Ltd and Arctic Cat Inc have jointly filed 3 patent families. This pairing likely reflects Arctic Cat’s acquisition history within the Textron group. No other cross-applicant collaboration is recorded in the corpus, meaning the field is predominantly being built through independent internal R&D rather than consortium or joint-development arrangements.
Limited co-filingUS-centric filing with meaningful PCT and EPO coverage
The United States leads with 10 patent records, followed by WIPO PCT filings at 7 and European EPO filings at 6, indicating that the major players are seeking protection across key power-equipment markets. Canada, Germany, and India each have 1 record, suggesting secondary-market coverage is still thin. Teams seeking freedom-to-operate outside the US-Europe corridor may find a relatively open landscape in other jurisdictions.
US + PCT visibleGo 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 |
|---|---|---|
| Textron Inc | Arctic Cat Inc | 3 |
Co-filing pairs, ranked by the number of jointly-filed patent families.
Assignee snapshot from the current evidence set
The applicants below are visible in this query result. Because the evidence set is relatively small, read this section as a directional snapshot rather than a full competitive ranking.
Eaton Intelligent Power Ltd
Eaton Intelligent Power holds 10 patent families — the largest position in this corpus. Its technology focus centers on H02H 3 (Protective circuit arrangements), with additional coverage in B60L 3 and B60L 53 (Electric vehicle propulsion). Applicant momentum is flagged as a new entrant, meaning no prior-period baseline exists against which to measure acceleration — all of Eaton’s filings have arrived within the tracked window, with 3 in the most recent period.
families: 10Moog Inc
Moog Inc holds 4 patent families, placing it second in the ranking. Its filings concentrate on B60L 53 (Electric vehicle propulsion — charging) with a secondary touch on H02J 7 (Power supply and grid systems), indicating a narrower, charging-protocol-oriented technical stance compared to Eaton’s broader protective-circuit portfolio. Moog is also categorized as a new entrant, with 4 patent families in the most recent filing period.
families: 4Frequently asked questions
The corpus contains 26 patent families. This is a small but growing field; the most recent filing years are likely understated due to publication lag.
Eaton Intelligent Power Ltd holds 10 patent families, the largest single position in the corpus, significantly ahead of the second-ranked filer Moog Inc at 4 patent families.
The field is in a Growth stage: recent three-year filings sit well above the prior three-year window, confirming multi-year expansion, though annual volume has eased from its 2020 peak and the most recent years are further understated by publication lag.
The United States leads with 10 patent records, followed by WIPO PCT at 7 and Europe (EPO) at 6. Canada, Germany, and India each have 1 patent record, making secondary-market coverage relatively thin.
Only one co-filing relationship is recorded: Textron Ltd and Arctic Cat Inc have jointly filed 3 patent families. No other cross-applicant collaboration is present in the corpus.
The lowest-represented adjacent classes are B60F (Multi-environment vehicles), B64C (Aeroplanes and helicopters), B64D (Aircraft equipment), H05K (Printed circuits and assemblies), and B60R (Vehicles, parts and accessories), each appearing in 3 or fewer patent records. These represent areas of relative sparsity, though their commercial viability as entry points depends on broader IP landscapes beyond this specific corpus.
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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.