PEMFC Platinum / MEA Recovery Patent Snapshot
The patent corpus for PEMFC platinum and MEA recovery is at a nascent stage, with a single patent family in scope and Dalian University of Technology as the sole identified filer to date. Activity is heavily concentrated in China across the metal-extraction and fuel-cell IPC branches, signalling that this niche remains largely uncontested and commercially open.
Dalian University of Technology holds the sole identified position
The corpus currently contains 1 patent family, filed by Dalian University of Technology, making it the top-ranked and only applicant in this space.
Concentration is absolute: the top five filers account for the entire activity among the ranked applicants visible in this query, reflecting that no industrial or commercial player has yet staked out formal IP in this area.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | Dalian University of Technology | 1 |
The academic origin of the single filing suggests that fundamental process research is the current frontier, with no evidence yet of industrial-scale recovery IP from fuel-cell or automotive manufacturers.
The corpus reflects a single filing dated 2025; publication lag means any very recent filings may not yet be visible in the dataset. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
A single 2025 filing defines the current activity baseline
The annual filing trend and technology composition together characterise this as a pre-commercial, single-origin corpus with no discernible multi-year trajectory yet established.
Annual filing trend
No filings appear before 2025 in the record set, and the sole family was filed in 2025. The 2025–2026 window should be treated as incomplete due to publication lag, so no trend direction can be inferred.
↗ Hover for values · click a bar to ask EurekaTechnology composition
The two represented IPC branches — C22B (metal extraction and refining) and H01M (batteries, cells and fuel cells) — each carry one record, confirming that the filing bridges precious-metal hydrometallurgy and fuel-cell materials in equal measure.
↗ 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.
一种高疏水性质子交换膜燃料电池中贵金属铂的回收方法
本发明属于燃料电池回收技术领域，公开了一种高疏水性质子交换膜燃料电池中贵金属铂的回收方法，利用醇水溶液对其进行亲水改性，随后利用不同形态的三价铁有机酸络合物与无机或有机碘化物体系在可见光照射的条件下从质子交换膜燃料电池内回收贵金属铂，得到贵金属浸出液。随后对贵金属浸出液蒸干煅烧、电解及直接利用等方式得到了铂氧化物、铂单质和铂基催化剂。此外，还对回收过程进行了优化，将碘化物替换为更廉价绿色的过硫酸盐和无机氯化物。本发明方法具有操作简单、成本低、低污染等优点，符合国家绿色协调发展的要求，且解决了疏水性对铂回收的影响，成功的从PEMFC中回收了铂，实现了铂资源的回收利用。 (excerpt from the patent abstract)
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.
Dalian University of Technology
Dalian University of Technology holds 1 patent family, filed in 2025, covering the C22B metal extraction and refining branch as well as H01M fuel-cell technology. Its applicant momentum data is not available given the single-filing baseline. The academic focus suggests foundational process-chemistry research rather than scaled recovery systems.
families: 1Evidence pending
No second-ranked applicant exists in the current corpus. The challenger position remains entirely vacant, representing a direct entry opportunity for industrial recyclers, fuel-cell developers, or materials companies seeking to establish prior art in PEMFC platinum and MEA recovery.
families: —Frequently asked questions
The current corpus contains 1 patent family in scope. This reflects a very early-stage field where formal IP activity has only just begun to emerge.
Dalian University of Technology is the sole and therefore top-ranked applicant, holding 1 patent family filed in 2025.
The single patent family on record is filed in China only. No PCT, EPO, US, or other national-phase equivalents appear in the evidence.
Two IPC branches each carry one record: C22B, covering metal extraction and refining, and H01M, covering batteries, cells and fuel cells. This dual classification reflects the cross-disciplinary nature of platinum recovery from PEMFC membrane electrode assemblies.
No filings appear before 2025 in the record set. Because the 2025–2026 window is subject to publication lag, no trend direction can be reliably inferred; the field is best characterised as pre-commercial with no established trajectory.
No collaboration data is present in the evidence. The corpus size of one patent family means the absence of co-applicant records is expected rather than informative at this stage.
Built on Patsnap Open Platform
This report’s underlying patent dataset — filings, assignees, technology clusters — is open for developers via MCP and REST API. Free to start, 10,000 credits, no credit card required.
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.