EV Powertrain Onboard Charger Patent Landscape 2026
Electric Vehicle Powertrain Onboard Charger Patent Landscape in 2026
The EV powertrain onboard charger corpus is a very early-stage, highly fragmented field with 6 patent families spread across eleven filers, peaking in 2021 and easing since. The United States is the lead filing jurisdiction, with LEOMOTORS and a small cluster of Korean and Singaporean entrants sharing the front rank.
LEOMOTORS leads a fragmented, nascent corpus
LEOMOTORS holds the top position with 2 patent records, tied with Lee Jung Yong and DH Holdings Co Ltd at the same count — a flat-topped ranking that signals no single incumbent dominates this space.
The top five filers collectively account for 57% of the hundred largest filers’ combined total, yet that concentration is distributed across at least three separate entities each holding only 2 patent records, indicating structural fragmentation rather than a dominant-player dynamic.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | LEOMOTORS | 2 | |
| 2 | Lee Jung Yong | 2 | |
| 3 | DH Holdings Co Ltd | 2 | |
| 4 | Emflux Motors Pte Ltd | 1 | |
| 5 | Dana Heavy Vehicle Systems Group LLC | 1 | |
| 6 | Blue Volta Tech Inc | 1 |
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 7 | Zero Electric LLC | 1 | |
| 8 | NINGBO GEELY AUTOMOBILE RES & DEV CO LTD | 1 | |
| 9 | Raptee Energy Pte Ltd | 1 | |
| 10 | Ford Global Technologies LLC | 1 | |
| 11 | Zhejiang Geely Holding Group Co Ltd | 1 |
The near-parity among the leading filers implies that no applicant has yet established a defensible portfolio advantage; the field remains open to well-targeted new filings, particularly from applicants with broader EV system integration expertise.
The most recent filing years should be treated as under-counted due to standard patent publication lag; apparent zeroes in 2023–2026 do not necessarily reflect a true cessation of activity. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
A 2021 peak, broad propulsion focus, and sparse adjacent branches
The filing trend chart reveals a sharp 2021 spike followed by a retreat, while the technology composition chart shows B60L electric vehicle propulsion as the anchor class, with secondary coverage in batteries and power supply systems.
Annual filing trend
Activity concentrated in a single year (2021) with minimal surrounding filings, consistent with the lifecycle assessment of a field that peaked and has since eased. Years from 2023 onward are likely under-counted due to publication lag and should not be read as confirmed silence.
↗ Hover for values · click a bar to ask EurekaTechnology composition
B60L (electric vehicle propulsion) covers all 6 patent records in scope, followed by H01M (batteries and fuel cells) and H02J (power supply and grid systems), each appearing in 5 records. B60K, B60H, B60R, G05F, and H04L each appear only once, marking them as sparsely covered adjacent branches.
↗ 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.
Universal battery pack, electric vehicle powertrai…
A Universal Battery Pack (UBP), electric vehicle powertrain design and battery swapping network with battery health management enabling a user of an electric vehicle to access data such as state of health monitoring to enable advanced interface with the electricity grid to address challenges in the adoption of electric vehicles which include cost, range… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Universal battery pack, electric vehicle powertrai… | 61 |
| 2 | Control system for a hybrid electric vehicle power… | 48 |
| 3 | Electric vehicle powertrain gear apparatus | 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.
What the portfolio structure means for R&D strategy
Despite broad EV industry growth, this specific charger subspace is thin and past its filing peak — conditions that simultaneously signal uncontested territory and the risk of limited prior-art depth for new entrants.
Past-peak, early-decline lifecycle
The lifecycle assessment classifies this field as Decline, with annual filings easing back from a 2021 peak and a recent-window growth rate of –33%. The corpus remains very small in absolute terms. Practitioners should interpret this as a field that drew brief attention and has not yet attracted sustained institutional investment.
Lifecycle: DeclineFragmented top tier, no dominant incumbent
The top five filers share 57% of the hundred largest filers’ combined total, but the leading count per applicant is only 2 patent records — meaning concentration is arithmetic, not strategic. No applicant has assembled a portfolio large enough to create a credible blocking position, leaving the competitive structure genuinely open.
FragmentedTwo active co-filing pairs anchor the ecosystem
Lee Jung Yong co-files with DH Holdings Co Ltd (2 joint records), and LEOMOTORS co-files with DH Holdings Co Ltd (2 joint records), making DH Holdings the central collaborative node in this corpus. Zhejiang Geely Holding Group and Ningbo Geely Automobile Research & Development also share 1 joint record, suggesting a separate OEM-research-institute axis.
Collaboration presentUS leads; India, Korea, and China are secondary offices
The United States accounts for 3 patent records, followed by India and South Korea at 2 each, China at 1, and one PCT filing. The US dominance reflects where the most active filers (LEOMOTORS, Dana Heavy Vehicle Systems) have prioritized protection. India’s presence — driven by Emflux Motors and Raptee Energy — signals early-stage activity in emerging EV markets.
US-led, emerging-market presenceGo 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 |
|---|---|---|
| Lee Jung Yong | DH Holdings Co Ltd | 2 |
| LEOMOTORS | DH Holdings Co Ltd | 2 |
| LEE JUNG YONG | DH Holdings Co Ltd | 2 |
| Zhejiang Geely Holding Group Co Ltd | Ningbo Geely Automobile Research & Development Co Ltd | 1 |
Co-filing pairs, ranked by the number of jointly-filed patent families.
LEOMOTORS and Lee Jung Yong / DH Holdings lead on propulsion and power supply
The leading filers share a near-identical technology focus anchored in B60L electric vehicle propulsion and H02J power supply systems, with differentiation appearing primarily in secondary branches.
LEOMOTORS
LEOMOTORS holds 2 patent records, focusing on B60L electric vehicle propulsion and H02J power supply and grid systems — the two dominant branches in this corpus. The company co-files with DH Holdings Co Ltd, which reinforces its position as the top collaborative node. No momentum trend data is available for LEOMOTORS in the evidence, so trajectory beyond current count is evidence pending.
patent records: 2Dana Heavy Vehicle Systems Group LLC
Dana Heavy Vehicle Systems Group holds 1 patent record and is identified as a new entrant in the most recent filing window, distinguishing itself from other filers by concentrating on B60K vehicle propulsion and drive rather than the dominant B60L class. This differentiated technology angle, combined with Dana’s established heavy-vehicle systems background, positions it as the most strategically distinct challenger in the corpus.
patent records: 1| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| Dana Heavy Vehicle Systems Group LLC | 1 | ▲ new entrant |
Four sparsely covered branches adjacent to the dominant propulsion cluster
Each of B60H, B60R, G05F, and H04L appears in only 1 patent record and accounts for 5% of the technical composition — making them under-served relative to the B60L and H02J core, though the absolute corpus size means these observations require validation at larger scale.
G05F · Electric and magnetic variable control
Only 1 patent record addresses variable electrical control in this corpus, despite its direct relevance to onboard charger regulation and power conditioning efficiency. For applicants with control-system expertise, this branch offers a low-density entry path that complements the dominant B60L and H02J filings without direct overlap.
Search this in Eureka →H04L · Digital information transmission
Communication protocols for onboard charger coordination — covering topics such as vehicle-to-grid signaling and charge management data exchange — appear in only 1 patent record. Given the industry trend toward smart charging and V2G integration, this branch is under-served relative to its plausible technical importance, and could represent a targeted filing opportunity for applicants active in connected EV systems.
Search this in Eureka →How leading filers differ by technology route
Strength of each leader across the main technology routes.
| Player | H01M 10 · Batteries, cells & fuel cells | H02J 7 · Power supply & grid systems | B60L 50 · Electric vehicle propulsion | B60L 58 · Electric vehicle propulsion | B60K 1 · Vehicle propulsion & drive |
|---|---|---|---|---|---|
| Blue Volta Tech Inc | Strong · 1 | Strong · 1 | Strong · 1 | Strong · 1 | Absent |
| Dana Heavy Vehicle Systems Group LLC | Strong · 1 | Absent | Strong · 1 | Strong · 1 | Strong · 1 |
| Raptee Energy Pte Ltd | Strong · 1 | Strong · 1 | Absent | Absent | Absent |
| Emflux Motors Pte Ltd | Strong · 1 | Absent | Absent | Absent | Absent |
| DH Holdings Co Ltd | Absent | Strong · 1 | Absent | Absent | Absent |
| Lee Jung Yong | Absent | Strong · 1 | Absent | Absent | Absent |
Frequently asked questions
The corpus in scope contains 6 patent families, making this a very early-stage and numerically small field. Conclusions drawn from it should be treated as directional rather than statistically robust.
LEOMOTORS, Lee Jung Yong, and DH Holdings Co Ltd each hold 2 patent records, placing them at the top of the ranking. Emflux Motors, Dana Heavy Vehicle Systems Group, Blue Volta Tech, Zero Electric, Ningbo Geely Automobile R&D, Raptee Energy, Ford Global Technologies, and Zhejiang Geely Holding Group each hold 1 patent record.
The United States leads with 3 patent records, followed by India and South Korea with 2 each, China with 1, and one PCT (WIPO) filing.
The field is assessed as Decline, with annual filings easing back from a 2021 peak and a recent-window growth rate of -33%. The absolute corpus size remains very small.
Yes. DH Holdings Co Ltd is the central co-filing node, appearing in joint filings with both Lee Jung Yong and LEOMOTORS (2 records each). Zhejiang Geely Holding Group and Ningbo Geely Automobile Research & Development share 1 joint record.
B60H (vehicle heating and A/C), B60R (vehicles, parts and accessories), G05F (electric and magnetic variable control), and H04L (digital information transmission) each appear in only 1 patent record, accounting for 5% of the technical composition each — making them the sparsest branches adjacent to the dominant B60L propulsion cluster.
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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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