Low-Platinum / PGM-Free PEMFC Patent Snapshot 2026
The low-platinum and PGM-free PEMFC patent space is small and highly concentrated, with ADVENT TECH holding the dominant position among a handful of academic and industrial filers. Activity began materialising only from 2022 onward, and several institutions entered the space for the first time in the most recent window.
ADVENT TECH leads a tightly concentrated, early-stage corpus
ADVENT TECH ranks first among all filers, with 5 patent records, followed by the University of Maryland, Toyota Motor Engineering & Manufacturing North America, Toyota Jidosha, the Regents of the University of California, and Battelle Memorial Institute, each with 1 patent record.
The top five filers account for 90% of the combined total among the ranked applicants visible in this query, indicating an extremely concentrated field with a sharp drop-off after the leading applicant. The gap between ADVENT TECH and all other participants is pronounced.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | ADVENT TECH | 5 | |
| 2 | University of Maryland | 1 | |
| 3 | TOYOTA MOTOR ENG & MFG NORTH AMERICA INC | 1 | |
| 4 | Toyota Motor Corporation | 1 | |
| 5 | The Regents of the University of California | 1 | |
| 6 | Battelle Memorial Institute | 1 |
ADVENT TECH’s visible share, combined with its focus on condensation-polymer electrolytes and fuel-cell electrode materials, suggests that commercially oriented membrane and catalyst development is being advanced primarily by this single firm, while universities and national laboratories occupy narrow, exploratory roles.
The most recent filing years are subject to publication lag and likely undercount actual activity; the overall corpus size should be interpreted cautiously at this stage. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Filings emerge from 2022; electrode and polymer chemistry dominate the technology mix
The two charts below capture when activity began and which technical branches are receiving attention. Both are useful for gauging whether a new entrant would face crowded or open sub-fields.
Annual filing trend
No filings were recorded for 2017 through 2021; one filing each appeared in 2022, 2023, and 2024. The zero values for 2025 and 2026 almost certainly reflect publication lag rather than a halt in activity, and should not be read as a decline. The corpus is in a very early accumulation phase.
↗ Hover for values · click a bar to ask EurekaTechnology composition
H01M (batteries, cells, and fuel cells) is the visible branch with 8 patent records, reflecting direct fuel-cell electrode and cell-component work. C08G condensation polymers (4 records) and C08K polymer additive use (3 records) together signal meaningful activity in ionomer and membrane chemistry. B01J catalysis, C07D heterocyclic compounds, C08J polymer processing, and H01B conductors each carry 1–2 records, marking them as comparatively sparse sub-fields within this corpus.
↗ 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.
Radical scavengers, catalytic structures with radi…
A catalytic structure can comprise a catalyst and one or more radical scavengers. Each radical scavenger can comprise one or more nanoparticles. Each nanoparticle can be formed as an oxide or oxynitride and can comprise at least one metal selected from titanium (Ti), zirconium (Zr), hafnium (Hf), rutherfordium (Rf), vanadium (V), niobium (Nb), tantalum… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Development and characterization of novel proton c… | 8 |
| 2 | Aromatic polyether copolymers and polymer blends a… | 5 |
| 3 | Radical scavengers, catalytic structures with radi… | 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.
ADVENT TECH
ADVENT TECH holds 5 patent records, the largest position in the corpus. Its technology emphasis spans H01M fuel-cell electrode structures, C08G condensation-polymer electrolytes, and C08K polymer additive formulations — a combination suggesting integrated membrane-electrode assembly development. No momentum data places it as a new entrant; it is the established reference point in this corpus.
5 patent recordsToyota Motor Engineering & Manufacturing North America
Toyota Motor Engineering & Manufacturing North America holds 1 patent record, with technology emphasis across H01M4 (electrode materials), H01M50 (cell components), and H01M8 (fuel-cell systems) — the broadest fuel-cell systems coverage among the non-ADVENT TECH filers. Its momentum trend is marked as a new entrant in the recent window, consistent with the field’s very recent emergence.
1 patent recordFrequently asked questions
The corpus currently contains 3 patent families in scope. This is a very small corpus reflecting the field’s early stage; activity only became visible from 2022 onward.
ADVENT TECH is the top-ranked filer with 5 patent records, well ahead of all other applicants, each of whom holds 1 patent record.
The United States leads with 4 patent records, followed by Canada with 2, and Europe (EPO) and WIPO (PCT) with 1 each. International coverage beyond North America is limited in the current corpus.
H01M (batteries, cells, and fuel cells) is visible in with 8 patent records. C08G condensation polymers and C08K polymer additive use follow, reflecting significant activity in ionomer and membrane materials alongside electrode work.
One co-filing collaboration is recorded, between the University of Maryland and Battelle Memorial Institute. No industrial co-filing partnerships appear in the current evidence.
No. Patent applications typically take 12 to 18 months or more to publish after filing. The zero values for 2025 and 2026 almost certainly reflect this publication lag and should not be interpreted as a halt or decline in actual invention activity.
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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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