Direct Methanol Fuel Cell for Industrial Plants Patent Landscape
Direct Methanol Fuel Cell for Industrial Plants Patent Landscape in 2026
The University of Southern California holds a commanding lead in direct methanol fuel cell patent activity for industrial applications, with the top five filers collectively dominating the landscape among the largest filers. The field is still expanding on a multi-year basis, though annual volume has eased from its 2019 peak and activity remains sparse overall, leaving meaningful adjacent branches underserved.
University of Southern California leads a highly concentrated, early-stage field
The University of Southern California ranks first by a wide margin, followed by Sony Group Corporation and the National Research Council of Italy (Consiglio Nazionale delle Ricerche). The top five filers account for 65% of the combined output of the hundred largest filers, signaling a field where a small academic and industrial cohort holds the bulk of documented intellectual property.
A clear two-tier structure is visible: the University of Southern California sits well above all others, with Sony Group Corporation and the National Research Council of Italy forming a second tier. Below them, the remaining ranked applicants each hold only one or two patent records, indicating limited breadth of competition.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | University of Southern California | 16 | |
| 2 | Sony Group Corporation | 6 | |
| 3 | National Research Council of Italy (Consiglio Nazionale delle Ricerche) | 3 | |
| 4 | Tactical Fuel Cells | 3 | |
| 5 | George A. Olah | 2 | |
| 6 | Murata Manufacturing Co., Ltd. | 2 | |
| 7 | GROSCHOPP DRIVES & MORE | 2 | |
| 8 | G. K. Surya Prakash | 2 |
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 9 | Chevron Technology Ventures LLC | 2 | |
| 10 | NGK Insulators Ltd. | 2 | |
| 11 | Dr. Herng-Shinn Hwang | 1 | |
| 12 | Herng-Shinn Hwang | 1 | |
| 13 | Antonio Maria Nardo | 1 | |
| 14 | NEC Corporation | 1 | |
| 15 | Girish Mandakolathur Krishnamurthi | 1 | |
| 16 | University of North Florida | 1 |
The leaders’ positions reflect primarily academic and research-institution origins — the University of Southern California and the National Research Council — alongside selective corporate involvement from Sony Group Corporation and Murata Manufacturing. This pattern suggests the technology has not yet attracted sustained industrial-scale IP programs from major energy or chemical manufacturers.
Filing counts for the most recent 18–24 months are likely understated due to patent publication lag and should not be interpreted as a slowdown in activity. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Intermittent annual filing with a broad electrochemical technology mix
The filing trend reveals a sparse and intermittent pattern of activity, while the technology composition shows that the corpus spans well beyond core fuel-cell classes into upstream electrochemical synthesis and gas-separation processes.
Annual filing trend
Activity peaked in 2019, was absent in several intervening years, and showed modest re-emergence in 2023 and 2024. The field is expanding on a multi-year basis with 50% recent growth versus the prior window, but annual volume has eased from its 2019 peak. Counts for 2024 and 2025 are further understated by publication lag.
↗ Hover for values · click a bar to ask EurekaTechnology composition
H01M (batteries, cells and fuel cells) is the largest IPC branch, as expected, but C25B (electrolytic production of compounds) and C07C (acyclic and carbocyclic compounds) together account for a substantial share, reflecting the methanol-synthesis and CO2-electrolysis research that underpins the leading applicants’ work. Separation processes (B01D), catalysis (B01J), and alloys (C22C) appear as smaller supporting branches.
↗ 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 system and voltage limitation method
A fuel cell system with which elution of a cathode due to excessive electro motive force is able to be inhibited without increase of electric power consumption at the time of power generation is provided. In the case where electro motive force V<b>1</b> by a power generation section <b>10</b> exceeds a given threshold voltage Vp at which elution of a… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Electrolysis of carbon dioxide in aqueous media to… | 169 |
| 2 | Electrolysis of carbon dioxide in aqueous media to… | 150 |
| 3 | Electrolysis of carbon dioxide in aqueous media to… | 98 |
| 4 | Hybrid fuel cell | 63 |
| 5 | Electrolysis of carbon dioxide in aqueous media to… | 62 |
| 6 | Very low emission hybrid electric vehicle incorpor… | 55 |
| 7 | Very low emission hybrid electric vehicle incorpor… | 41 |
| 8 | Electrolysis of carbon dioxide in aqueous media to… | 35 |
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 competitive structure means for R&D investment decisions
Despite its industrial-application framing, this landscape is currently shaped more by academic electrochemistry research than by vertically integrated industrial IP programs. The following cards summarize the key structural observations.
Growth stage, but annual volume intermittent
The field is classified in a Growth lifecycle stage: the recent three-year filing window sits 50% above the prior three-year window on a multi-year basis. However, annual volume has eased from its 2019 peak and the overall corpus remains small. An engineer entering now faces limited prior-art density but also limited validated industrial deployment signals.
Growth · post-2019-peakTop-heavy with academic institutions leading
The top five filers hold 65% of the combined output of the hundred largest filers, and the leading position belongs to a university rather than an industrial manufacturer. This leaves large sections of the application space — particularly process engineering and systems integration — with little documented IP competition from industrial players.
High concentrationNational Research Council and AST Engineering are the most active co-filers
The most active co-filing pair is the National Research Council of Italy with AST Engineering LLC, sharing 3 joint patent records. The University of Southern California co-files with both G. K. Surya Prakash and George A. Olah (2 records each), reflecting a tight academic research group rather than broad industry-academia partnerships. Cross-sector collaboration is limited.
Academic-led co-filingUS-centric with limited multinational coverage
The United States is the lead filing jurisdiction, followed by Europe (EPO) and WIPO (PCT) with equal representation, and India in fourth position. Canada and Australia also appear. The relatively narrow geographic spread suggests that industrial applicants in Asia and Europe have not yet staked significant territorial claims in this specific application domain.
US-dominantGo 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.
| Applicant | Collaborator | Co-filings |
|---|---|---|
| National Research Council of Italy (Consiglio Nazionale delle Ricerche) | AST Engineering LLC | 3 |
| G. K. Surya Prakash | University of Southern California | 2 |
| George A. Olah | University of Southern California | 2 |
Co-filing pairs, ranked by the number of jointly-filed patent families.
University of Southern California leads; Sony Group Corporation is the top corporate filer
Two entities stand clearly above the rest: the University of Southern California with a focus on electrochemical methanol synthesis, and Sony Group Corporation as the leading corporate applicant concentrated in fuel-cell systems.
University of Southern California
The University of Southern California holds 16 patent records, the largest position in the corpus. Its technology emphasis is concentrated in C25B (electrolytic production of compounds, sub-classes 1 and 3) and C07C 29 (acyclic and carbocyclic compounds), reflecting a strong focus on electrochemical CO2-to-methanol synthesis as the upstream fuel-generation pathway. Applicant momentum data are not available for trajectory assessment.
patent records: 16Sony Group Corporation
Sony Group Corporation holds 6 patent records and is the leading corporate-sector filer. Its work is concentrated in H01M 8 (fuel-cell systems) with a secondary position in G05F 1 (electric and magnetic variable control), indicating a focus on fuel-cell stack design and power management rather than upstream methanol production. Applicant momentum data are not available for trajectory assessment.
patent records: 6Under-served adjacent branches worth monitoring
Several IPC branches appear with low patent-record counts relative to the dominant H01M and C25B classes. These represent observations of relative sparsity; where a branch also has plausible technical value and a realistic entry path for industrial DMFC applications, that context is noted.
B01J · Chemical/physical processes and catalysis
With only 2 patent records, catalyst design for methanol oxidation and reforming is sparsely covered relative to its technical importance. Catalyst performance — particularly for anode electrocatalysts tolerating CO poisoning in industrial operating environments — is a recognized bottleneck. An entrant with proprietary catalyst compositions or support materials could differentiate without navigating a dense prior-art landscape in this specific application context.
Search this in Eureka →B01D · Separation processes (filtration)
B01D holds 6 patent records, primarily from the National Research Council of Italy and AST Engineering LLC, but remains a relatively thin cluster given the centrality of membrane and gas-separation engineering to DMFC stack performance. Proton-exchange membrane optimization and methanol crossover mitigation are active engineering challenges in industrial-scale stacks. The existing small cluster is concentrated in a single co-filing pair, leaving room for independent entrants.
Search this in Eureka →How leading applicants differ by technology route
Strength of each leader across the main technology routes.
| Player | H01M 8 · Batteries, cells & fuel cells | C07C 29 · Acyclic & carbocyclic compounds | C25B 1 · Electrolytic production of compounds | C25B 3 · Electrolytic production of compounds | C01B 3 · Non-metallic elements & inorganic compounds |
|---|---|---|---|---|---|
| University of Southern California | Absent | Strong · 9 | Strong · 12 | Strong · 12 | Absent |
| Sony Group Corporation | Strong · 8 | Absent | Absent | Absent | Absent |
| Groschopp Drives & More | Strong · 2 | Strong · 2 | Strong · 2 | Absent | Absent |
| National Research Council of Italy (Consiglio Nazionale delle Ricerche) | Absent | Strong · 3 | Absent | Absent | Strong · 3 |
| Ovonic Fuel Cell Co. LLC | Strong · 2 | Absent | Absent | Absent | Strong · 2 |
| NGK Insulators Ltd. | Strong · 2 | Strong · 2 | Absent | Absent | Absent |
Frequently asked questions
The University of Southern California holds the largest position with 16 patent records, focused primarily on electrochemical production of compounds (C25B) and acyclic and carbocyclic compounds (C07C), reflecting upstream methanol-synthesis research.
The top five filers account for 65% of the combined output of the hundred largest filers, indicating a highly concentrated field. Most ranked applicants outside the top five hold only one or two patent records each.
The field is in a Growth lifecycle stage, with the recent three-year filing window 50% above the prior three-year window. However, annual volume has eased from its 2019 peak, and counts for the most recent years are further understated by publication lag.
The United States leads as the primary filing jurisdiction, followed by Europe (EPO) and WIPO (PCT) in equal second position, with India fourth. Coverage in major Asian markets outside Japan is limited.
The most active co-filing pair is the National Research Council of Italy with AST Engineering LLC, sharing 3 joint patent records. The University of Southern California also co-files with G. K. Surya Prakash and George A. Olah (2 records each), reflecting a closely linked academic research group.
Catalyst design (B01J, 2 records) and separation processes including membranes (B01D, 6 records) are the sparsest branches with direct technical relevance to industrial DMFC performance. Chemical/physical catalysis in particular is a thin cluster given its engineering importance.
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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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