Dynamic Wireless Charging Patents: Who Leads, Where the Gaps Are 2026
- Concentrated at the top. The top 5 assignees hold 62.1% of all 29 records in scope, and the top 10 hold 86.2% — this is a small, tightly held field, not a crowded one.
- Filing has cooled from its 2021 pace. Filings fell from 3 in 2021 to 1 in 2024, a 67% drop over that span, even as 2025 shows a partial-data peak of 8 that will keep revising upward.
- Claims cluster on the vehicle side. 86.2% of records touch B60L (electric vehicle propulsion) and 65.5% touch H02J (power supply and grid systems), leaving road-embedded infrastructure classes comparatively thin.
Filing growth compares 2021 (3 records) with 2024 (1) — 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 29 records in scope (CR5), not by the ranked leaders only.
What this landscape covers
Dynamic and in-motion wireless charging refers to systems that transfer power to a vehicle while it moves, rather than while it is parked over a stationary pad. The engineering problems are distinct from static wireless charging: segment switching along a charging lane, power fluctuation as a vehicle’s coil crosses gaps between road-embedded transmitters, vehicle detection to activate only the segment beneath the load, and constraints on installation cost and electromagnetic exposure that govern where such a lane can be deployed at all. This dataset spans 29 published records filed between 2015 and 2026, a small and still-forming corpus by the standards of adjacent electric-vehicle fields.
Because the corpus is small, individual assignees and even single records carry more weight than they would in a denser field. The concentration figures below should be read as a snapshot of who has staked claims early, not as a settled market structure.
Filing trend and technology composition
Two views of the same 29 records: how filing activity has moved year over year, and which IPC subclasses the claims actually sit in.
A small field with an uneven filing curve
Filings were at zero in 2017 and reached a partial-year count of 3 by 2026. The tracked peak so far is 2025 at 8 records, but publication lags filing by roughly 18 months, so both 2025 and 2026 will continue to fill in as more records publish. The one complete year-over-year comparison the data supports is 2021 to 2024, where filings fell from 3 to 1 — a 67% decline. Treat any read of 2025-2026 as provisional rather than as evidence of renewed acceleration.
Vehicle-side classes dominate over infrastructure classes
B60L (electric vehicle propulsion) appears in 86.2% of the 29 records and H02J (power supply and grid systems) in 65.5%, confirming that most claims are written from the vehicle or power-electronics side of the interface. B60M (power lines for electric traction), the class most associated with road-embedded infrastructure, appears in only 17.2% of records. Control and compute-adjacent classes — G05F, G06F and G06N — each appear in just 3.4% of records, meaning coil-and-power-electronics claims heavily outnumber control-software or AI-assisted claims in this field.
Shares are the percentage of the 29 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Dynamic and In-Motion Wireless Charging with Eureka
This page is one run against one query. Ask Eureka your own question about dynamic and in-motion wireless charging and every answer comes back with the patent numbers behind it.
Try EurekaThe most-cited records in this space
Systems and methods for stabilizing power and voltage in dynamic wireless charging (US12451735B1)
The patent describes a composite control scheme — combining backstepping control with passivity-based control, regulated through a Lyapunov function — to stabilise output voltage and power at the secondary side as an electric vehicle moves and its load changes. The stated aim is to keep output voltage independent of load conditions while maintaining smooth power delivery through motion.Filed by The Florida International University Board of Trustees, published 2025-10-21.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20190097471A1 | Vehicle misalignment measurement and compensation in dynamic wireless charging applications | 54 |
| 2 | US20150298560A1 | Base magnetics and sequence design for dynamic systems | 26 |
| 3 | CN114161952A | 通过磁集成抑制功率波动的电动汽车动态无线充电系统 | 19 |
| 4 | CN115214394A | 电动汽车动态无线充电系统及横向偏移功率波动抑制方法 | 13 |
| 5 | CN113270948A | 抑制功率波动的动态无线充电系统及其参数设计方法 | 12 |
| 6 | WO2015160510A1 | Inductive power supply for vehicles comprising a plurality of charging coils which can be operated in differe… | 8 |
| 7 | CN116805193A | 联网电动汽车的调度方法和系统、电子设备及存储介质 | 7 |
| 8 | CN111654118A | 基于倍压整流器的动态无线供电系统功率波动抑制方法 | 5 |
| 9 | CN210309951U | 一种电动汽车动态无线充电控制装置 | 4 |
| 10 | US9469207B2 | Base magnetics and sequence design for dynamic systems | 4 |
Citation counts favour older records that have had more time to accumulate references; treat them as a signal of influence within this corpus, not as a ranking of current technical 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. Each row carries its publication number; clicking a row searches Eureka by that number.
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Three readings of the same dataset: concentration, cited influence, and where the technology classes point.
A small field, tightly held at the top
The top 5 assignees account for 62.1% of all 29 records in scope, rising to 86.2% for the top 10 of the 30 ranked companies. For a newcomer, this means the earliest and most defensible claim space is likely already occupied by a handful of filers, and freedom-to-operate work should start there rather than assuming a fragmented field.
Momentum has cooled from its recent high
Filings dropped from 3 in 2021 to 1 in 2024, the only complete year-over-year window this dataset supports. Momentum-by-assignee figures show the previously active filers — including the leading Chinese university and grid-research pairing — at zero filings in the latest tracked year, consistent with a lull rather than an ongoing surge.
Vehicle-side claims outnumber infrastructure claims
Claims concentrated in B60L and H02J show the field is currently written mostly from the vehicle and power-electronics perspective. B60M, the class tied most directly to road-embedded coil infrastructure, covers only 17.2% of records — a gap worth noting for anyone filing on the roadway side of the interface.
Filing activity splits across three offices
China, India and the United States each account for a meaningful share of receiving-office activity, with Europe, Austria and the WIPO/PCT route trailing behind. This spread suggests no single jurisdiction has emerged as the default filing venue for this technology yet.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to dynamic and in-motion wireless charging, with the prior art for and against each one.
Who is filing, and where the field is still open
The ranked assignees split into a handful of active research groups and a long tail of single-filing entrants; several sub-areas remain thinly claimed.
One filer leads a small pack
The leading assignee holds 6 of the 29 records in scope, a meaningful share for a field this size but not a dominant one. Coverage falls off quickly after the top few positions, with fifth place at 2 records and tenth place at just 1.
Filing is mostly solo, with a few strong pairs
Only 7 co-assignee pairs appear across the dataset. The strongest pairings recur three times each — one linking a Chinese university with a provincial grid-research institute, another linking two individual US-based inventors — suggesting a few durable working relationships rather than a broad collaborative network.
Recent-year activity has gone quiet across the board
Every assignee with tracked year-over-year momentum — including the leading university and grid-research pairing, the two paired US inventors, and a second state university — shows zero filings in the latest tracked year. This is consistent with the broader 2021-2024 decline rather than any single company stepping back.
| Assignee | Recent year | YoY |
|---|---|---|
| Qualcomm Inc. | 0 | — |
| Chongqing University | 0 | -100% |
| Electric Power Research Institute of Guangxi Power Grid Co., Ltd. | 0 | -100% |
| SARWAT ARIF I | 0 | -100% |
| BEHNAMFAR MILAD | 0 | -100% |
| Utah State University | 0 | — |
| Southwest Jiaotong University | 0 | — |
| Jiangsu Fangtian Power Technology Co., Ltd. | 0 | — |
Where to take this next
This landscape identifies structure — concentration, technology mix, and gaps. Turning that into a filing or freedom-to-operate decision requires going deeper on specific claims.
Check freedom-to-operate against the top-held claims
With 62.1% of records held by the top 5 assignees, any new filing in dynamic charging should be checked against their specific claim scope before committing engineering resources.
Explore claims in EurekaMap the under-claimed branches in detail
Road-embedded coil segmentation and electromagnetic exposure compliance show thin IPC coverage. A deeper claim-chart review of those branches can surface where a first-mover filing is still realistic.
Run a white space search in EurekaCommon questions about this landscape
This dataset identifies 29 published records in scope, filed between 2015 and 2026, covering technical areas such as segment switching, power fluctuation, road-embedded coils, vehicle detection, installation cost and electromagnetic exposure. That is a small corpus compared with adjacent electric-vehicle technologies, reflecting that dynamic charging is a narrower and newer sub-field than static wireless charging or EV powertrains generally. Because publication lags filing by roughly 18 months, the most recent years in this count will keep rising as more filings publish.
The ranking covers 30 companies in total, counted by patent family, with the leading assignee holding 6 of the 29 records in scope. Concentration is notable for a field this size: the top 5 assignees together hold 62.1% of all records, and the top 10 hold 86.2%. Beyond the leading group the ranking thins quickly, with fifth place holding 2 records and tenth place just 1, indicating a long tail of single- or double-filing entrants rather than a broad competitive base.
The only complete year-over-year comparison this dataset supports is 2021 to 2024, over which filings fell from 3 to 1 — a 67% decline. Figures for 2025 and 2026 show higher raw counts, including a tracked peak of 8 in 2025, but those years are still incomplete because publication typically lags filing by about 18 months. Read the 2025-2026 uptick cautiously rather than as confirmed renewed growth until later data cuts fill those years in.
IPC composition shows claims concentrated in B60L (electric vehicle propulsion, 86.2% of records) and H02J (power supply and grid systems, 65.5%), with far thinner coverage in B60M (power lines for electric traction, 17.2%) and in control- or compute-adjacent classes such as G05F, G06F and G06N, each at just 3.4%. That pattern points to road-embedded infrastructure claims, electromagnetic exposure compliance design, and AI-assisted vehicle detection as comparatively under-claimed relative to vehicle-side power electronics. A prospective filer should verify these gaps against specific claim language rather than IPC class alone before committing to a filing strategy.
US12451735B1, filed by The Florida International University Board of Trustees and published 2025-10-21, describes a composite control method combining backstepping and passivity-based control, regulated by a Lyapunov function, to stabilise output voltage and power at the secondary side of a dynamic wireless charging system as the vehicle load moves and changes. It matters because it addresses power fluctuation directly, one of the core technical problems this entire landscape is built around, and because it is a recent filing rather than one of the older, more heavily cited records. Anyone designing a secondary-side power stabilisation approach should review its specific claim scope before finalising a control architecture.
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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.