PEM Fuel Cell Solid Oxide Cell Patent Landscape 2026
PEM Fuel Cell Solid Oxide Cell Patent Landscape in 2026
The retrievable corpus for this exact query is extremely small, comprising 1 patent family filed in 2025 by a single Chinese applicant. At this corpus size, no statistically meaningful conclusions about concentration, competitive dynamics, or pace of change can be drawn from the available evidence.
Single-applicant corpus — competitive structure cannot be assessed
The current evidence base contains 1 patent family, assigned entirely to Zhejiang Haizhuo New Energy Technology Co., Ltd., making it the sole ranked applicant. Any concentration or ranking read is therefore trivially complete and not analytically meaningful.
With one applicant holding all activity in the top-100 applicant list, the tier structure is undefined. A corpus of this size may reflect a highly specific or narrow query intersection between PEM fuel cell and solid oxide cell technologies rather than the true breadth of activity in either field.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | Zhejiang Haizhuo New Energy Technology Co., Ltd. | 1 |
The leader’s position implies first-mover visibility in the specific query intersection, but the corpus is too sparse to infer strategic intent, portfolio depth, or competitive moat from this data alone.
Publication lag of 18–24 months means very recent filings are under-counted; the single 2025 record should be treated as a floor, not a ceiling, for activity in this period. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
No discernible trend — single filing point in 2025
The annual filing chart and technology composition chart are both based on a single patent family. Readers should treat these charts as placeholders pending a broader corpus.
Annual filing trend
Zero filings are recorded from 2017 through 2024; one filing appears in 2025, and 2026 shows zero. Given standard publication lag, the 2025 and 2026 data points are likely incomplete and should not be read as a trend.
↗ Hover for values · click a bar to ask EurekaTechnology composition
The sole family is classified under both C25B (electrolytic production of compounds) and H01M (batteries, cells, and fuel cells), indicating the filing addresses electrochemical cell construction or materials at the intersection of electrolysis and fuel cell technologies.
↗ 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.
一种硅基传输层及其应用
本发明涉及多孔传输层制作领域，公开了一种硅基传输层及其应用，包括至少一硅基材料，所述硅基材料采用掺杂导电的晶体硅材料制成；其中，所述硅基材料包括第一表面和第二表面，所述第一表面和第二表面之间设有若干用于传输的贯穿通道；且所述第一表面或第二表面用于与设有横向传输流场的极板堆叠接触；硅基材料优选采用硅片；本发明解决了钛纤维扩散层和碳纤维气体扩散层存在气液传输阻力大，导电、导热性能差，且机械强度较低的问题；由于晶体硅材料具有很高的化学稳定性，可以在PEM燃料电池或PEM电解装置中强酸性、高电位、高氧化性的环境中稳定工作。 (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.
What the sparse corpus implies for R&D positioning
With only 1 patent family in evidence, the following cards describe structural observations rather than validated competitive intelligence. Each card notes where evidence is insufficient.
Life-cycle stage: evidence pending
The lifecycle stage is not determinable from a single-family corpus. The sole filing appears in 2025, which prevents any assessment of whether this specific query intersection is nascent, growth-stage, or mature. Engineers should broaden the query scope to adjacent PEM or solid oxide cell sub-topics to obtain a meaningful lifecycle read.
Stage: undeterminedTrivially concentrated — one applicant, one family
Zhejiang Haizhuo New Energy Technology Co., Ltd. accounts for all activity in the current corpus. This is not evidence of strategic dominance; it reflects the narrowness of the query intersection. Expanding the search to separate PEM fuel cell and solid oxide cell queries would reveal the true competitive landscape in each sub-field.
HHI: not meaningfulNo co-applicant activity detected
Evidence pending. No co-filing or collaboration relationships are present in the current corpus. This may reflect the query’s narrow scope rather than an absence of collaborative R&D in the broader technology area.
Co-filings: 0China is the sole jurisdiction on record
The single patent family is filed and published in China. No filings are recorded in other jurisdictions such as the US, EP, JP, or KR. This may indicate early-stage domestic protection or, again, reflect the narrow query scope. Monitoring PCT or foreign national phase entries would clarify international ambition.
Jurisdictions: 1Go beyond the landscape: Eureka’s TRIZ Solution agent breaks down an R&D problem and returns patented concept solutions, each with a technical approach and cited patent & literature evidence.
Co-filing pairs, ranked by the number of jointly-filed patent families.
Zhejiang Haizhuo New Energy Technology — sole ranked filer
Only one applicant appears in the current evidence. A second player card cannot be populated without fabricating data. The challenger slot is marked evidence pending.
Zhejiang Haizhuo New Energy Technology Co., Ltd.
Zhejiang Haizhuo New Energy Technology Co., Ltd. holds 1 patent family in the current corpus, classified under C25B (electrolytic production of compounds) with sub-codes C25B1, C25B9, and C25B11, suggesting a focus on electrode or cell construction materials. Applicant momentum data is not available in the current evidence set.
families: 1Evidence pending
No second-ranked applicant is present in the current corpus. Readers should re-run the search with a broader query or inspect the wider PEM fuel cell and solid oxide cell landscapes separately to identify challenger positions.
families: —Under-served adjacent branches — observations from a sparse corpus
With only one filing in scope, white-space candidates cannot be computed from the current evidence. The following observations are based on the IPC branches present and their known technical adjacencies.
C25B — Electrolytic cell design and membrane materials
The sole filing touches C25B, covering electrolytic production and cell construction. This branch spans electrode materials, ion-exchange membranes, and cell geometries relevant to both PEM and solid oxide cell architectures. The branch appears sparsely covered in the current query intersection, and an engineer entering here would face limited prior-art density — though the broader C25B and H01M landscapes in adjacent queries are well-populated and should be assessed before treating this as open territory.
Search this in Eureka →H01M — Fuel cell stack integration and hybrid architectures
H01M covers batteries, fuel cells, and related electrochemical energy systems. The intersection of PEM and solid oxide cell technologies within H01M — particularly hybrid stack architectures that exploit different operating temperature ranges — is sparsely represented in the current corpus. Engineers exploring thermal integration between low-temperature PEM and high-temperature solid oxide stages may find limited directly blocking prior art in this exact intersection, but should validate against the broader H01M corpus before drawing conclusions.
Search this in Eureka →Technology route comparison across leading applicants
Strength of each leader across the main technology routes.
| Player | C25B 1 · Electrolytic production of compounds | C25B 11 · Electrolytic production of compounds | C25B 9 · Electrolytic production of compounds | H01M 4 · Batteries, cells & fuel cells |
|---|---|---|---|---|
| Zhejiang Haizhuo New Energy Technology Co., Ltd. | Strong · 1 | Strong · 1 | Strong · 1 | Strong · 1 |
Frequently asked questions
The current evidence base contains 1 patent family. This is a very small corpus and likely reflects a narrow query intersection rather than the full breadth of activity in either PEM fuel cell or solid oxide cell technology individually.
Zhejiang Haizhuo New Energy Technology Co., Ltd. is the sole ranked applicant in the current corpus, holding 1 patent family filed in 2025 in China.
The single family in scope is classified under C25B (electrolytic production of compounds) and H01M (batteries, cells, and fuel cells), specifically sub-codes C25B1, C25B9, and C25B11.
China is the only jurisdiction represented in the current corpus, with 1 patent record filed there. No US, EP, JP, KR, or PCT entries are present in the evidence.
The life-cycle stage cannot be determined from the current evidence. The corpus contains only 1 patent family, which is insufficient to compute growth rates or stage classifications. Engineers should consult the broader PEM fuel cell and solid oxide cell landscapes for a meaningful lifecycle assessment.
No co-applicant or collaboration relationships are present in the current evidence. This is likely a reflection of the corpus size rather than an absence of collaborative R&D activity in the broader technology domain.
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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.