MXene Supercapacitor Patents: Leaders, Trends & White Space 2026
A patent landscape review of MXene supercapacitor technology: filing trends, leading assignees, IPC composition and open claim space, based on 11 patent families through 2026.
Filing growth = 2021 (1 records) → 2024 (0); 2024 is the last year we treat as complete. Top-5 share = the 5 largest assignees ÷ all 11 records in scope (CR5), not the ranked leaders only.
What the MXene supercapacitor patent record actually shows
MXene supercapacitor patenting is a small, recent, and geographically concentrated field. The scope here covers 11 published patent families filed between 2015 and 2026, with activity beginning in earnest only in the last few years. There is no dominant incumbent: the ranked leader holds just two families, and most of the other eight filers hold exactly one each. This is a field still being staked out, not one with an established pecking order.
Filings originate mostly from India and China, with a single European and a single PCT filing rounding out the receiving-office mix. That geographic pattern, combined with the presence of university and institute assignees rather than established battery manufacturers, points to a technology still moving from bench research toward defensible commercial claims.
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Filing trend and technology composition
The dataset spans 11 published records from 2015 through the 2026 cut-off. Because publication lags filing by roughly 18 months, the most recent years understate real filing activity.
A short, recent filing history with no sustained run-up
Filings were effectively absent before the last decade's later years, rose to a peak of 4 in 2025, and the documented 2021-to-2024 span shows a -100% change — a single data point, not a trend, and one that should not be read as decline given publication lag.
Publication lags filing by roughly 18 months, so 2025 onwards are still filling in. Growth rates on this page therefore end at 2024; running them to the last bar would understate the field.
H01G anchors the field; ceramics and battery classes trail
Every one of the 11 records carries an H01G capacitor classification by definition of the search. Ceramics & refractories (C04B) and batteries/fuel cells (H01M) each appear in 27.3% of records, with nanotechnology (B82Y) at 18.2% and several smaller classes — C01B, C08G, C23C, C25B — each present in a single record.
Shares are the percentage of the 11 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on MXene Supercapacitor Patent Landscape with Eureka
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Try EurekaThe most-cited documents in scope
Polymer synthetic stones with the ability to store electrical energy, and their manufacturing (WO2023213932A1)
The filing describes a synthetic stone that functions as a supercapacitor-like electrical energy store, built from a geopolymer-and-cement matrix with positive and negative steel electrodes embedded in a conductive mortar of fly ash, cement, gravel, sand and an alkali activator. The approach substitutes a construction-material matrix for a conventional electrode/electrolyte stack.Cited 6 times within this dataset — the joint highest citation count among the 11 records in scope.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | WO2023213932A1 | Polymer synthetic stones with the ability to store electrical energy, and their manufacturing | 6 |
| 2 | CN115050583A | 一种三维氮掺杂MXene超级电容器电极材料及其制备方法和应用 | 6 |
Citation counts inside a searched corpus favour older records; treat them as a signal of influence within this dataset, not of current commercial 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. Publication numbers are shown where the record carries one (2 of 2 rows); clicking a row searches Eureka by that number.
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With only 11 families in scope, statistical conclusions have to be read cautiously — but the shape of the data is still informative for anyone deciding where to file next.
The top of the ranking is thin, not dominant
The five most active filers together account for 63.6% of all 11 records in scope, and the leader itself holds only 2 families. That is concentration in relative terms, but in absolute terms it means no single organisation has built a defensible patent thicket yet.
Activity is recent and still forming
The filing trend runs from zero in 2017 to a peak of 4 in 2025, with the most recent year necessarily partial. A three-year span from 2021 to 2024 shows a -100% change, but that reflects a single low-volume comparison rather than a maturing or declining field.
Hybrid material claims outnumber pure electrode claims
Every record sits in the H01G capacitor class by construction of the search, but a meaningful share also touches ceramics (C04B) or battery/fuel-cell classes (H01M). That pairing suggests applicants are claiming MXene supercapacitor function inside composite or structural materials, not only as standalone electrode chemistries.
Filing activity is concentrated in Asia with limited international reach
Six of the 11 records were filed via India's receiving office and three via China, with only one European and one PCT filing extending the geographic reach. Few applicants have yet pursued broad multi-jurisdiction protection, which leaves room for a first mover to establish coverage in Europe, the US, or other major markets.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to mxene supercapacitor patent landscape, with the prior art for and against each one.
Where to take this analysis
The raw counts describe the field as it stands; deciding where to file, partner or design around requires digging into the underlying claims.
Map the white space directly
Cross-reference the under-represented IPC classes — C01B, C08G, C23C, C25B — against the core H01G claims to find combinations no one has claimed yet.
Explore white space in EurekaTrack the long tail of single-filers
Most of the 9 ranked assignees hold a single family. Watching which of them file a second application is an early signal of who intends to build a real position.
Set up assignee tracking in EurekaRead the most-cited claims in full
The two most-cited records point toward composite and structural-material approaches. Reading their independent claims in full clarifies what is actually blocked.
Open the citation table in EurekaCommon questions about the MXene supercapacitor patent landscape
This dataset identifies 11 published patent families worldwide that match MXene supercapacitor claims classified under H01G, covering 2015 through the 2026 data cut-off. That is a small field by patent-landscape standards, reflecting the technology's relatively recent emergence from academic and applied research. Because publication lags filing by roughly 18 months, the true count of filed-but-unpublished applications from the most recent one to two years is certainly higher than what is currently visible.
The ranking covers 9 companies and institutions in total, and it is a short, flat list rather than a field with a dominant player. The top-ranked assignee holds only 2 of the 11 families, with most of the remaining organisations holding a single filing each. The five most active filers combined account for 63.6% of all 11 records in scope, so while there is some concentration at the top, no single entity controls the technology.
The filing trend runs from essentially zero activity in 2017 to a peak of 4 filings in 2025, the most active year recorded so far. A specific three-year comparison from 2021 to 2024 shows a -100% change, but this reflects a single low-volume window and should not be read as the field cooling off. Because 2025 and 2026 filings are still publishing, any apparent recent dip is an artefact of publication lag rather than a real slowdown.
Beyond the core H01G capacitor classification that every record in this dataset carries, the next most common overlaps are ceramics and refractories (C04B) and batteries, cells and fuel cells (H01M), each present in 27.3% of the 11 records. Nanotechnology applications (B82Y) appear in 18.2% of records. Smaller overlaps with non-metallic compounds (C01B), condensation polymers (C08G), coatings (C23C) and electrolytic production (C25B) each appear in a single record, marking narrow but potentially open niches.
The crowded ground is the core H01G capacitor classification, which every record in this dataset touches, and the India and China receiving offices, which together account for 9 of the 11 filings. The lighter-touched combinations — such as MXene supercapacitor claims paired with coatings (C23C), electrolytic production (C25B) or condensation polymers (C08G) — each appear in only one record, and jurisdictions like Europe and the broader PCT route have seen only one filing apiece. That combination of underused IPC classes and underused receiving offices is where a new filer has the most room to build an independent position.
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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.