800V Onboard Charger Patent Snapshot 2026
The 800V onboard charger patent space is nascent and lightly concentrated, with King Fahd University of Petroleum and Minerals holding the largest single position among a field of nine distinct filers. Activity is in a growth phase, with multi-year filings up and all active players entering as new entrants, signaling an early-stage but accelerating competitive environment.
A nascent field led by an academic institution, with wide-open competitive space
King Fahd University of Petroleum and Minerals holds the top position with 2 patent families, while every other ranked filer—including Delphi Tech IP Ltd, Mercedes-Benz Group AG, and several Chinese automotive and energy companies—holds a single family each.
The top five filers account for 60% of the combined output of the ranked applicants visible in this query, a high concentration ratio for such a small corpus, but one that reflects the field’s immaturity rather than entrenched defensive barriers. The tier gap between the leader and all challengers is minimal in absolute terms.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | King Fahd University of Petroleum and Minerals | 2 | |
| 2 | Delphi Tech IP Ltd | 1 | |
| 3 | Mercedes-Benz Group AG | 1 | |
| 4 | Jiang Lang | 1 | |
| 5 | Wuhan University of Technology | 1 | |
| 6 | Jiangsu Zhuoyue Energy Storage Technology Co Ltd | 1 | |
| 7 | Yibin Cowin Auto Co Ltd | 1 | |
| 8 | Shenzhen VMAX New Energy Co Ltd | 1 | |
| 9 | FCA US LLC | 1 |
The leader’s position is academic rather than industrial, which implies that core IP coverage by major OEMs and Tier-1 suppliers remains limited. Established automotive and power electronics players have yet to stake significant claims, leaving the field open for systematic portfolio building.
The most recent 18–24 months of filings are under-counted due to standard patent publication lag; apparent low activity in 2025–2026 should not be read as a slowdown. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Filing activity rising from zero, anchored in EV propulsion with sparse coverage in power conversion
Two charts together capture the pace and shape of 800V onboard charger innovation: the annual trend shows when this space came alive, and the technology composition map shows which IPC branches carry the most and least coverage.
Annual filing trend
No filings appeared before 2021; the first cohort of three families arrived that year, followed by a spike of four families in 2024. The 67% recent growth figure reflects a field accelerating from a very low base. The 2025–2026 data points are materially understated by publication lag and should be treated as a floor, not a ceiling.
↗ Hover for values · click a bar to ask EurekaTechnology composition
B60L (Electric vehicle propulsion) is visible in with all ten families touching this class. B60R (Vehicles, parts and accessories) and H02J (Power supply and grid systems) each appear in three families. G01R (Electric and magnetic measurement) and H02M (Power conversion) each appear in only one family, marking them as sparsely covered adjacent branches relative to the visible class.
↗ 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.
Switchable battery disconnect unit for electrified…
A switchable battery disconnect unit (BDU) system for an electrified vehicle includes a switchable BDU for a high voltage battery system of the electrified vehicle, the switchable BDU including one or more protection devices that each include both a contactor and an integrated circuit breaker, and a controller configured to control the switchable BDU to… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | 一种电动汽车快充系统及其控制方法 | 7 |
| 2 | Supertwisting sliding mode controller for fast EV … | 3 |
| 3 | 一种结合超充与高压充电技术的新能源汽车充电方法及其充电桩 | 1 |
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.
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.
King Fahd University of Petroleum and Minerals
The sole holder of 2 patent families in this corpus, King Fahd University of Petroleum and Minerals concentrates entirely on B60L 53 (EV charging/propulsion), making it the only filer with more than a single-family position. Its momentum is classified as a new entrant. An academic leader at the top of an industrial technology race signals that commercial players have not yet mobilized systematic filing programs.
families: 2Mercedes-Benz Group AG
Mercedes-Benz Group AG holds 1 patent family with technology coverage spanning both B60L 53 (EV propulsion/charging) and H02J 7 (power supply and grid systems), making it the only OEM in the ranking to extend into grid-interface claims. Its momentum is classified as a new entrant. This dual-branch footprint, modest as it is, positions it as the industrially most diversified single-family filer in the current corpus.
families: 1Frequently asked questions
The current corpus contains 10 patent families in scope. This is a small but growing dataset, and the most recent 18–24 months are under-counted due to publication lag.
King Fahd University of Petroleum and Minerals holds the top position with 2 patent families, the only entity with more than a single-family position in the current ranking.
China leads in terms of patent records, followed by the United States. Single records also appear in the United Kingdom, India, and via WIPO PCT, indicating some early interest in international coverage.
B60L (Electric vehicle propulsion) is the visible IPC class, with all ten families carrying this classification. B60R and H02J each appear in three families, while H02M and G01R each appear in only one.
H02M (Power conversion) and G01R (Electric and magnetic measurement) are the two sparsest branches, each covered by only one family. These are adjacent to the visible B60L class and represent areas of relatively low prior-art density.
The field is classified as Growth stage. No filings appeared before 2021, and recent-window growth stands at 67%. Annual filings are still rising from a low base, and the most recent data is under-counted due to publication lag.
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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.
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