PEMFC Nanocatalyst Patent Snapshot 2026
The PEMFC nanocatalyst patent corpus is very small — just 4 patent families — with activity concentrated among a handful of automotive, energy, and institutional filers sharing the top positions equally. Filing has been sparse and intermittent since 2017, signaling that this intersection of proton-exchange membrane fuel cells and nanocatalysis remains at an early, largely open stage where strategic entry could establish durable prior art.
A nascent field with no dominant single leader
3M Innovative Properties Co, Hyundai Motor Co Ltd, and the French Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA) each hold 2 patent records, placing them jointly at the top of the ranking with no clear separation between them.
The top five filers collectively account for 100% of the ranked applicants visible in this query’ combined total — an extreme concentration that reflects the tiny absolute size of the corpus rather than genuine lock-in by any single entity. The field has no established tier hierarchy; all leading positions are effectively tied.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | 3M Innovative Properties Co | 2 | |
| 2 | Hyundai Motor Co Ltd | 2 | |
| 3 | Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA) | 2 | |
| 4 | Saveetha Engineering College | 1 | |
| 5 | Shanghai Yilu New Energy Technology Co Ltd | 1 |
The joint-leader positions of 3M (materials and MEA expertise), Hyundai (automotive integration), and CEA (public-research electrochemistry) suggest that the technology sits at the intersection of catalyst synthesis, cell engineering, and applied fuel-cell system design — no single route has pulled away.
Patent publication typically lags filing by 18–24 months, so activity in 2024–2026 is likely under-represented in this corpus and actual recent interest may be higher than the counts suggest. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Intermittent filing and a fuel-cell-dominated technology mix
Two charts together show when activity occurred and where it sits in the IPC classification tree, revealing both the sparse filing cadence and the visible technical branch.
Annual filing trend
Two filings appeared in 2017, then the corpus went silent until a single filing in 2022 and another in 2025. This intermittent, low-volume pattern indicates the topic has not attracted sustained annual investment; the 2024–2026 window should be read with caution given publication lag.
↗ Hover for values · click a bar to ask EurekaTechnology composition
H01M (batteries, cells, and fuel cells) is the visible IPC branch by a clear margin, followed by B01J (chemical/physical processes and catalysis) and a smaller share in B82Y (nanotechnology applications). The relative underweight of B82Y compared with H01M suggests that nano-specific claims are embedded within broader fuel-cell filings rather than being filed as standalone nanotechnology patents.
↗ 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.
Fuel cell electrode with nanostructured catalyst a…
Polymer electrolyte membrane (PEM) fuel cell membrane electrode assemblies (MEA’s) are provided which have nanostructured thin film (NSTF) catalyst electrodes and additionally a sublayer of dispersed catalyst situated between the NSTF catalyst and the PEM of the MEA. (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | NANOSTRUCTURED PTxMy CATALYST FOR PEMFC CELLS HAVI… | 5 |
| 2 | Carbon-platinum core-shell type catalysts for fuel… | 3 |
| 3 | Carbon-platinum core-shell type catalysts for fuel… | 2 |
| 4 | Fuel cell electrode with nanostructured catalyst a… | 2 |
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.
3M Innovative Properties Co
3M holds 2 patent records with emphasis on H01M 4 (fuel-cell electrodes and electrode materials) and H01M 8 (fuel-cell assemblies), supplemented by B01J 31 (coordination-catalyst chemistry). This focus on electrode-level and system-level fuel-cell claims, rather than purely on nanomaterial synthesis, positions 3M as an integrated materials-to-MEA filer. No momentum data is available for 3M beyond its current 2-record position.
patent records: 2Hyundai Motor Co Ltd
Hyundai Motor Co Ltd holds 2 patent records and files jointly with Kia Corporation (also 2 records in the collaboration pair), concentrating in B01J 35 (catalyst form/structure), H01M 4 (electrode materials), and B01J 23 (metal-on-support catalysts). The Hyundai-Kia co-filing relationship is the only confirmed collaboration in the corpus. Shanghai Yilu New Energy Technology Co Ltd is flagged as a new entrant with 1 recent record, signaling emerging Chinese participation in this niche.
patent records: 2Frequently asked questions
The evidence captures 4 patent families in scope for this topic. The corpus is small, which reflects either the nascent state of dedicated PEMFC nanocatalyst filings or the specificity of the search definition — both are plausible given the intermittent annual filing pattern observed from 2017 to 2025.
3M Innovative Properties Co, Hyundai Motor Co Ltd, and the Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA) each hold 2 patent records, placing them jointly at the top. Saveetha Engineering College and Shanghai Yilu New Energy Technology Co Ltd each hold 1 record.
The only confirmed co-filing relationship in the evidence is between Kia Corporation and Hyundai Motor Co Ltd, which share 2 jointly filed records. This Hyundai Motor Group pairing is the sole collaboration signal; no university-industry or cross-border co-filing pairs are visible in the current corpus.
The United States leads with 5 patent records, followed by China, India, and Japan with 1 record each. European jurisdictions and South Korea do not appear in the evidence, representing potential geographic gaps for applicants seeking broad protection.
The most-cited document in the evidence is titled ‘Nanostructured PtxMy catalyst for PEMFC cells’ with 5 citations. A carbon-platinum core-shell catalyst document appears twice in the top-cited list with 3 and 2 citations respectively, and a ‘Fuel cell electrode with nanostructured catalyst’ holds 2 citations.
Shanghai Yilu New Energy Technology Co Ltd is flagged as a new entrant in the applicant momentum data, having filed 1 recent record with no prior-period baseline. This signals emerging Chinese commercial interest in the niche, though the single record makes trajectory assessment premature.
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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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