Micro / Portable PEMFC Patent Snapshot 2026
The micro and portable PEMFC patent space is a small, highly concentrated field in decline, with a handful of specialist firms and holding entities controlling the majority of activity. Innovation Asset Collective leads by patent record count, and the United States is the dominant filing jurisdiction, but annual filings have eased sharply from a 2019 peak.
A concentrated, specialist field led by Innovation Asset Collective
Innovation Asset Collective holds the top position in this evidence snapshot with 8 patent records, followed closely by H Power Corp with 7. The field is dominated by a small cluster of dedicated fuel-cell specialists and intellectual-property holding entities rather than large industrial conglomerates.
The top five filers account for 76% of the combined total across the ranked applicants visible in this query, signalling an unusually tight concentration. A pronounced tier gap separates the top two players from Intelligent Energy Ltd (4 records) and the joint third-tier group at 3 records each.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | Innovation Asset Collective | 8 | |
| 2 | H Power Corp | 7 | |
| 3 | Intelligent Energy Ltd | 4 | |
| 4 | Advanced Material Engineering Pte Ltd | 3 | |
| 5 | H3 Dynamics Holdings Pte Ltd | 3 | |
| 6 | Andhra University College of Engineering | 2 |
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 7 | Spear Reginald G Jr | 1 | |
| 8 | NATIONAL TECHNOLOGY & ENGINEERING SOLUTIONS OF SAN… | 1 | |
| 9 | NMAM Institute of Technology | 1 | |
| 10 | Honeywell International Inc | 1 | |
| 11 | Mueggenburg H Harry | 1 | |
| 12 | Intelligent Energy Inc | 1 |
The leaders’ positions suggest that core micro-PEMFC intellectual property has been consolidated through IP aggregation (Innovation Asset Collective) and early specialist development (H Power Corp), leaving limited room for incremental patenting around established cell and stack architectures without design-around effort.
Filings from roughly 2024 onward are subject to publication lag and likely under-represent actual recent activity; absence of records in those years should not be read as a complete cessation of development. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
How activity and technology mix are shifting in micro PEMFC
Two lenses reveal the field’s current state: an annual filing trend that peaked in 2019 and has since retreated, and a technology composition anchored in core fuel-cell and hydrogen-generation classes with thin coverage of adjacent enabling technologies.
Annual filing trend
Filings peaked at 7 records in 2019, dropped irregularly through 2022, and show zero recorded activity from 2023 onward — though the most recent years reflect publication lag rather than confirmed inactivity. The overall multi-year window shows a recent-growth figure of -60%, consistent with a field past its primary innovation peak.
↗ Hover for values · click a bar to ask EurekaTechnology composition
H01M (batteries, cells, and fuel cells) is visible in the IPC mix, with C01B (non-metallic elements and inorganic compounds, covering hydrogen generation) as the second-largest branch. Heat-exchange classes F28D and F28F together form a meaningful supporting cluster, reflecting the thermal-management demands of compact PEMFC stacks. Pressure vessels (F17C) and telephonic communication (H04M) each appear in only a single record, highlighting under-developed adjacencies.
↗ 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.
A portable fuel cell apparatus and system
The present application describes an improved portable proton exchange membrane fuel cell (PEMFC) system (100) and apparatus (200) integrated with a hydrogen generator that produces hydrogen gas from the exothermic MgH2 hydrolysis reaction in order to produce electrical energy needed for soldier worn electronics, gears, etc. The disclosed PEMFC apparatus… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Fuel cell platelet separators having coordinate fe… | 183 |
| 2 | Metal platelet fuel cells production and operation… | 180 |
| 3 | Water and energy management system for a fuel cell | 79 |
| 4 | Fuel cells employing integrated fluid management p… | 53 |
| 5 | Compact efficient hydrogen reactor | 49 |
| 6 | Method of generating hydrogen gas from sodium boro… | 44 |
| 7 | A portable fuel cell apparatus and system | 19 |
| 8 | PEM Fuel Cell Power Systems with Efficient Hydroge… | 9 |
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.
Innovation Asset Collective
Innovation Asset Collective holds the top position with 8 patent records, functioning as an IP holding and aggregation entity rather than a manufacturing organization. Its portfolio trajectory and momentum data are not separately reported in evidence, reflecting its role as a consolidator of earlier-developed technology. Engineers assessing freedom-to-operate in core PEMFC areas should treat this portfolio as a primary clearance checkpoint.
patent records: 8Intelligent Energy Ltd
Intelligent Energy Ltd holds 4 patent records and is classified as a new entrant based on recent filing momentum. Its technical focus spans hydrogen generation (C01B 3) and core fuel-cell systems (H01M 8), with additional coverage of catalytic processes (B01J 19) — a profile consistent with integrated hydrogen-supply and stack development for portable applications. The new-entrant momentum flag suggests it is actively building its position from a small prior base.
patent records: 4Frequently asked questions
The landscape contains 20 patent families in scope. This is a small corpus, reflecting the specialized and somewhat mature nature of the field.
Innovation Asset Collective leads with 8 patent records, followed by H Power Corp with 7. These two organizations together account for the visible share of the top-tier portfolio in this space.
The field is assessed as being in decline, with annual filing volume easing from a peak of 7 records in 2019. Filings from 2023 onward show zero recorded activity, though this partly reflects publication lag. The field is past its primary patenting peak rather than actively growing.
The United States is the visible venue with 14 jurisdiction-level records. Europe (EPO) and WIPO (PCT) each show 4 records, India 3, and Singapore 2. Australia, Canada, and South Korea each account for 1 record.
Core fuel-cell systems (H01M) is the most covered IPC class, followed by hydrogen generation chemistry (C01B). Heat-exchange apparatus (F28D and F28F) forms the next meaningful cluster, reflecting thermal-management requirements in compact stacks. Pressure vessels (F17C) and telephonic communication (H04M) are the sparsest branches, each with only one record.
Evidence shows one documented co-filing relationship: Advanced Material Engineering Pte Ltd and H3 Dynamics Holdings Pte Ltd share 3 co-filed records. No broader multi-party ecosystem collaboration is evident in the available data.
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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.