Charging Connector Thermal Management Patents: Leaders & Gaps 2026
What this landscape covers
This landscape tracks patent filings addressing thermal management of EV charging connectors and cables — liquid-cooled connectors, chilled compressed-air cable cooling, and related charging-infrastructure hardware. The search combines connector- and cable-cooling language with EV-charging and vehicle-supply-equipment terms, so records outside that intersection are excluded even where they touch adjacent battery-thermal or general EV propulsion art.
The scope is narrow by design: 13 published records across the 2015–2026 window, concentrated in a small number of receiving offices and a small number of named assignees. That makes this a landscape where a single filing can meaningfully shift the picture, and where absence of a competitor is as informative as its presence.
Let an AI agent run this analysis on your own technology
Pick a task. Every answer cites the patents behind it.
Filing trend and technology composition
Two views of the same 13 records: when they were filed, and which IPC subclasses they carry.
Filing trend, 2017–2026
Filings rose to a peak of 5 records in 2019 and have not repeated that level since. With publication lag of roughly 18 months, the final one or two years in the window will read lower than eventual filings turn out to be — treat the tail of the chart as provisional, not as a real decline.
IPC subclass composition
B60L (electric vehicle propulsion) appears on 76.9% of the 13 records, the broadest single class in scope. H01R (connectors and current collectors) follows at 46.2%, and H01B (cables, conductors and insulators) at 30.8%. Because a record can carry multiple IPC classes, these shares add up to more than 100% of the record total — they describe overlap, not a partition.
Shares are the percentage of the 13 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Charging Infrastructure — Charging-Connector Thermal Management Patent Landscape with Eureka
This page is one run against one query. Ask Eureka your own question about charging infrastructure — charging-connector thermal management patent landscape and every answer comes back with the patent numbers behind it.
Try EurekaThe most-cited records in this field
Chilled Compressed Air Electric Vehicle (EV) Fast-Charge System and Method
An air cooling system for an electric vehicle charge cable includes a compressed air supply, at least one filter, at least one dryer and a super cooler subsystem for chilling compressed air from the compressed air supply. A coupling on the charging cable supplies the chilled compressed air to the charging cable, and the system is configured to maintain the cable's exterior surface below a predetermined temperature during charging. A routing structure directs the chilled compressed air back to the charging station to keep the cable at or below that temperature, and the system may operate in closed loop.Filed by RSCC Wire & Cable LLC; published 2024-03-07.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | EP3770007A1 | Electrical vehicle charging system for charging an electrical vehicle | 14 |
| 2 | US20220144115A1 | Electrical Vehicle Charging System for Charging an Electrical Vehicle | 7 |
| 3 | US20240075832A1 | Chilled Compressed Air Electric Vehicle (EV) Fast-Charge System and Method | 3 |
| 4 | US12630032B2 | Chilled compressed air electric vehicle (EV) fast-charge system and method | 1 |
| 5 | WO2024102887A1 | Chilled compressed air electric vehicle (EV) fast-charge system and method | 1 |
| 6 | US12296703B2 | Electrical vehicle charging system for charging an electrical vehicle | 1 |
Ranked by citation count within the searched corpus; older records accumulate citations for longer, so treat this as a signal of influence rather than of current importance.
Publication numbers are shown where the record carries one (6 of 6 rows); clicking a row searches Eureka by that number.
Put your own technology through the same analysis
Eureka on the web
When you want the answer in the next five minutes.
The agent works the prompt against patents and technical literature, citing every source.
Run your analysis now →MCP server & REST API
When it has to run inside your own pipeline.
Patent search, landscape analysis and assignee resolution as MCP tools. Drop them into any agent framework, or call REST directly.
Browse MCP servers →What the numbers mean for filing strategy
Three findings that change how a freedom-to-operate or whitespace review should be scoped for this art.
No long tail to monitor
The ranked assignee list returns only four companies, and together they account for every record in scope. There is no diffuse population of small filers to track separately — competitive monitoring here means watching four entities, not a market.
Propulsion framing outweighs connector-specific claims
Most records are filed under the broader EV-propulsion class rather than the connector-and-current-collector class, suggesting many applicants approach cable and connector cooling as a subsystem of the vehicle or charging system rather than as standalone connector hardware.
Activity has not repeated its 2019 peak
Filing counts reached their high point in 2019 and have not matched it in later years shown. Because publication lag understates the most recent one to two years, this should be read as inconclusive on trend direction rather than as a confirmed slowdown.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to charging infrastructure — charging-connector thermal management patent landscape, with the prior art for and against each one.
Where to take this analysis
The scoped dataset points to specific follow-up work rather than a single conclusion.
Check claim scope against the leader's filings
With one assignee holding 5 of 13 records, a claim chart against that portfolio is the fastest way to find out whether a new design is clear or blocked.
Explore assignee claims in EurekaWatch the compressed-air cooling branch
The most-cited recent filings use chilled compressed air rather than liquid cooling for cable temperature control — worth tracking as a distinct technical route.
Track this branch in EurekaRe-run the trend after the next data refresh
The final one to two years in this window are understated by publication lag; a re-run once those filings publish will give a truer read on momentum.
Set up a monitoring alert in EurekaCommon questions on this landscape
The dataset's assignee ranking returns only four companies, and together they hold all 13 records in scope, so this is not a field with a broad competitor base. The top-ranked assignee alone holds 5 of the 13 records. Anyone doing freedom-to-operate work here should focus on those four portfolios rather than searching for a long tail of smaller filers, because the ranking does not contain one.
Not cleanly — IPC classification shows heavy overlap rather than a clean split. B60L (electric vehicle propulsion) appears on 76.9% of the 13 records, H01R (connectors and current collectors) on 46.2%, and H01B (cables, conductors and insulators) on 30.8%, and because records can carry multiple classes these figures overlap rather than sum to a partition. In practice, most filings treat cable and connector cooling as part of a broader charging-system claim rather than isolating the connector hardware alone.
It covers a chilled compressed-air cooling system for an EV charging cable: a compressed air supply, filter and dryer stage, a super-cooler subsystem, a coupling that delivers chilled air into the cable, and a routing structure that returns the air to the charging station to hold the cable below a set temperature, including a closed-loop mode. It is one of the most-cited records in this dataset, filed by RSCC Wire & Cable LLC and published 2024-03-07. Designing a competing cable-cooling system should start with a claim chart against this filing and its related family members.
The data does not support a growth-rate claim either way. Filings peaked at 5 records in 2019 and have not reached that level again in the years shown, but publication lag of roughly 18 months means the most recent one to two years understate true filing activity. Treat the recent tail of the trend as provisional rather than as evidence of a slowdown.
Relative to the core connector- and cable-cooling claims, several adjacent branches show thinner coverage in this dataset: closed-loop compressed-air return routing, connector-integrated liquid microchannel cooling, cable-jacket embedded coolant lines, and cooling specifically at the current-collector contact point. None of these appear as a dense cluster in the 13 records reviewed, which makes them worth a dedicated novelty search before committing to a filing strategy.
Research Charging Infrastructure — Charging-Connector Thermal Management Patent Landscape in depth with Eureka
Go past this page: query the whole charging infrastructure — charging-connector thermal management patent landscape corpus yourself, in your own scope.
Every answer comes back with patent numbers you can open.
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.