VRFB Demand Response Patent Snapshot 2026
The VRFB demand response patent space is highly nascent and heavily concentrated, with a single applicant holding the overwhelming majority of filings and meaningful activity only emerging from 2023 onward. The field remains effectively open, with broad adjacent branches covering grid integration, AI-based control, and thermal management carrying minimal prior art.
One dominant filer in a field that is just beginning to form
Suzhou Rongke Power Co Ltd sits at the top of the applicant ranking with 8 patent records, accounting for the bulk of all activity among the five ranked filers identified in this corpus.
The top five filers together account for all of the top ranked applicants visible in this query’ combined total — a concentration level that signals a very early-stage field rather than a mature competitive arena. The remaining four applicants — Huaneng Luoyang Thermal Power Co Ltd, Xian Thermal Power Research Institute Co Ltd, UniEnergy Technologies LLC, and Xian Xire Energy Saving Technology — each hold a single patent record.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | Suzhou Rongke Power Co Ltd | 8 | |
| 2 | Huaneng Luoyang Thermal Power Co Ltd | 1 | |
| 3 | Xian Thermal Power Research Institute Co Ltd | 1 | |
| 4 | UniEnergy Technologies LLC | 1 | |
| 5 | Xian Xire Energy Saving Technology | 1 |
Suzhou Rongke Power’s position implies first-mover advantage in VRFB-specific demand response; however, the overall corpus is small enough that a focused entrant could establish a meaningful position relatively quickly.
Activity only became visible in 2023, and filings from the most recent 18–24 months are subject to publication lag, so the current count likely understates true recent activity. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Activity concentrated in a single year; technology mix anchored in battery chemistry
The filing trend and technology composition together reveal a field that essentially began in 2023 and is built almost entirely on battery-cell fundamentals, with thin representation across adjacent engineering and computing branches.
Annual filing trend
No filings appear before 2023; a cluster of records appeared in 2023, followed by activity in 2025. The 2024 and 2026 counts should be treated as provisional given publication lag — the apparent gap does not necessarily reflect a pause in inventive activity.
↗ Hover for values · click a bar to ask EurekaTechnology composition
H01M (batteries, cells, and fuel cells) is the visible class with 10 patent records, reflecting the core electrochemical focus of VRFB work. Six adjacent branches — including F01K steam and thermal power plants, F28D heat-exchange apparatus, G06N AI computing, G06Q business and commerce data processing, H02J power supply and grid systems, and H02N electric machines — each carry only a single record, indicating that the application layer around VRFB demand response remains largely uncharted.
↗ 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.
ELEKTROLYT UND VANADIUM-REDOX-FLOW-BATTERIE
An electrolyte solution and an all-vanadium redox flow battery are disclosed. The electrolyte solution includes: a positive electrode electrolyte solution and a negative electrode electrolyte solution, the positive electrode electrolyte solution and the negative electrode electrolyte solution include chloride ions, sulfate ions and vanadium ions; both the… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Single capacity balancing in a redox flow battery | 27 |
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.
Suzhou Rongke Power Co Ltd
Suzhou Rongke Power entered the VRFB demand response space as a new entrant and filed 8 patent records, all concentrated in H01M 8 (fuel cells and redox flow battery stacks) with one record in H01M 10. Its filings account for the visible share of activity and span Australia, Europe, the US, Canada, India, and Singapore — a deliberately international protection footprint.
patent records: 8Xian Thermal Power Consortium
Three Chinese entities — Xian Thermal Power Research Institute Co Ltd, Xian Xire Energy Saving Technology, and Huaneng Luoyang Thermal Power Co Ltd — collectively hold 3 patent records filed collaboratively, each concentrated in F01K (steam and thermal power plants) and F28D (heat-exchange apparatus). Their focus is VRFB integration within thermal power plant contexts rather than standalone grid demand response. Momentum data is not available for these filers individually.
patent records: 1 eachFrequently asked questions
The current corpus contains 9 patent families in scope. This is a very small body of prior art, consistent with an early-stage, narrowly defined technology intersection.
Suzhou Rongke Power Co Ltd is the clear leader with 8 patent records, far ahead of the next four filers — Huaneng Luoyang Thermal Power Co Ltd, Xian Thermal Power Research Institute Co Ltd, UniEnergy Technologies LLC, and Xian Xire Energy Saving Technology — each of which holds a single patent record.
No filings appear before 2023 in the evidence. A cluster of records appeared in 2023, followed by further activity in 2025. The field is effectively less than three years old from a patent perspective.
Australia, Europe (EPO), and the United States each show 2 patent records, followed by Canada, China, India, and Singapore at 1 each. Australia’s lead position is notable given its active grid-scale battery market.
The most-cited work identified in the evidence is titled ‘Single capacity balancing in a redox flow battery,’ with 27 citations. This suggests that capacity balancing methodologies are a foundational reference point for the field.
The most patent-sparse adjacent branches are G06N (AI-based control models), H02J (grid integration and power supply systems), G06Q (business and commerce data processing for energy markets), F01K (steam and thermal power plants), and F28D (heat-exchange apparatus) — each carrying only one patent record. AI-based dispatch optimization and grid integration architecture are especially plausible entry points given their direct relevance to demand response functionality.
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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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