VRFB Electrode-Electrolyte Interface Patent Snapshot
The patent corpus for VRFB electrode-electrolyte interface technology is extremely small, with only 2 patent families in scope and all activity concentrated among two applicants. The field is effectively pre-competitive, presenting significant open space for new entrants willing to define the IP evidence snapshot.
Two applicants hold all visible IP in an embryonic field
University of Limerick leads the applicant ranking with 4 patent records, followed by High Energy Batteries India with 2 patent records — together accounting for 100% of the top hundred filers’ combined total.
With only two ranked applicants and total concentration at 100%, there is no meaningful tier gap to describe: the field has not yet attracted the broad commercial participation seen in adjacent battery technology domains.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | University of Limerick | 4 | |
| 2 | High Energy Batteries India | 2 |
University of Limerick’s lead position, spanning both H01M and H02J technology classes, suggests an academic-origin IP base that has not yet been widely licensed or challenged by industrial players, leaving room for corporate entrants to build differentiated positions.
Filing activity visible in the data should be treated with caution for the most recent 18–24 months due to standard patent publication lag; the corpus as observed reflects the state of public disclosures, not necessarily all pending applications.
A single filing cohort and a narrow technology mix define the field today
The annual filing trend and technology composition together reveal a field that has produced negligible public output until very recently, with its technology scope tightly anchored in core electrochemical cell classification.
Annual filing trend
All 2 patent families in scope appear in 2025, with zero recorded activity in prior years from 2017 onward. The apparent absence of earlier filings may partly reflect publication lag for the most recent period; nonetheless, the pattern confirms this is a nascent area with no established filing cadence. Readers should not interpret the 2026 zero as a real decline.
↗ Hover for values · click a bar to ask EurekaTechnology composition
H01M (Batteries, cells and fuel cells) is visible in the technology composition with 6 patent records, while H02J (Power supply and grid systems) accounts for 2 records. This narrow two-class spread indicates that electrode-electrolyte interface work at the VRFB level has not yet branched into adjacent domains such as materials science or manufacturing process classes.
↗ 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.
Method and System for Improving the Energy Efficie…
The present invention comprises a method and system for improving the energy efficiency of a vanadium flow battery, VFB. This is achieved by simultaneously reconditioning the VFB through in-situ activation of the electrodes. (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Method and System for Improving the Energy Efficie… | 4 |
| 2 | A method and system for improving the energy effic… | 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.
University of Limerick
University of Limerick holds 4 patent records, spanning both H01M (electrochemical cells) and H02J (power supply and grid systems) technology classes. This cross-class presence suggests research extending from cell-level interface design to system-level energy management. Applicant momentum data is not available for trend characterization beyond what the corpus total indicates.
patent records: 4High Energy Batteries India
High Energy Batteries India holds 2 patent records, focused exclusively within H01M (electrochemical cells). As an industrial entity, its presence alongside an academic leader hints at early commercialization interest in this interface technology, though the small corpus size limits further trajectory inference.
patent records: 2Frequently asked questions
The corpus contains 2 patent families in scope, making this one of the smallest and most nascent areas in the broader VRFB IP landscape.
University of Limerick is the leading filer with 4 patent records, ahead of High Energy Batteries India with 2 patent records.
India and the United States each account for 2 patent records. Europe (EPO) and WIPO (PCT) each have 1 record, indicating early-stage international protection strategies.
H01M (Batteries, cells and fuel cells) accounts for 6 patent records and H02J (Power supply and grid systems) for 2 records. No other IPC classes appear in the current corpus.
No co-applicant or co-filing relationships appear in the evidence. All filings are attributed to the two applicants independently, leaving the collaboration ecosystem entirely undeveloped.
All visible patent family activity appears in 2025, with zero recorded filings from 2017 through 2024. This pattern confirms an embryonic field that has not yet attracted sustained filing activity, though publication lag means some recent applications may not yet be publicly visible.
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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.