Electrocatalysis Faradaic Efficiency Patent Landscape
The electrocatalysis Faradaic efficiency field is in a clear growth phase, with Chinese academic institutions collectively dominating filings and China accounting for the largest share of jurisdictional activity. The top applicants are universities rather than industrial players, signaling that the field remains largely in pre-commercial research, with activity concentrated in electrolytic production of compounds under IPC class C25B.
Academic institutions lead a China-centered, moderately concentrated field
Zhejiang University of Technology holds the top position with 53 patent families, followed closely by Zhejiang University with 48 and the University of Toronto with 37. The top five filers’ share of the hundred largest filers stands at 18%, indicating moderate but not extreme concentration at the leading edge.
A clear tier gap separates the top two Chinese universities from the rest of the field. Below the top three, applicants cluster in the 28–31 patent family range, suggesting a broad second tier without a single dominant challenger.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | Zhejiang University of Technology | 53 | |
| 2 | Zhejiang University | 48 | |
| 3 | Governing Council of the University of Toronto | 37 | |
| 4 | Eltech Systems Corporation | 31 | |
| 5 | Beijing University of Chemical Technology | 31 | |
| 6 | Tianjin University | 30 | |
| 7 | Dalian University of Technology | 28 | |
| 8 | South China University of Technology | 26 | |
| 9 | EAST CHINA UNIV OF SCI & TECH | 23 | |
| 10 | Dalian Institute of Chemical Physics, Chinese Academy of Sciences | 19 |
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 11 | Board of Trustees of the Leland Stanford Junior University | 19 | |
| 12 | King Fahd University of Petroleum and Minerals | 19 | |
| 13 | Jiangnan University | 17 | |
| 14 | YEDA RES & DEV CO LTD | 17 | |
| 15 | TECHNICAL INST OF PHYSICS & CHEMISTRY – CHINESE AC… | 17 | |
| 16 | UNIV OF SCI & TECH OF CHINA | 16 | |
| 17 | Jiangsu University | 16 | |
| 18 | Regents of the University of California | 16 | |
| 19 | Dioxide Materials Inc. | 15 | |
| 20 | Monash University | 15 |
The dominance of university applicants across the top 10 positions implies that core IP in this field is still being established through academic research, presenting both a licensing opportunity and a freedom-to-operate consideration for industrial entrants looking to commercialize high-Faradaic-efficiency electrocatalytic processes.
The most recent 18–24 months of filings are subject to publication lag and are likely under-counted; rankings and totals should be interpreted with that caveat. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Sustained filing growth driven overwhelmingly by electrolytic compound production
The annual filing trend and the technology composition chart together reveal a field expanding rapidly in volume while remaining tightly anchored to a single dominant IPC branch. Understanding both dimensions is essential for identifying where crowding is occurring and where adjacent space remains.
Annual filing trend
Filings rose steadily from 40 in 2017 to a recorded high of 339 in 2024, representing growth of 175% over the recent window. The 2025 and 2026 figures are materially understated due to publication lag and should not be read as a slowdown; the lifecycle assessment confirms the field remains in a growth stage.
↗ Hover for values · click a bar to ask EurekaTechnology composition
C25B (electrolytic production of compounds) is overwhelmingly dominant in the technology mix. B01J (chemical and physical processes and catalysis), B82Y (nanotechnology applications), H01M (batteries, cells and fuel cells), and C01B (non-metallic elements and inorganic compounds) represent secondary branches with substantially lower counts, pointing to areas of relative sparsity adjacent to the core.
↗ 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.
Spin-polarized electrocatalytic reduction reaction…
A method of producing ethanol by electrocatalytic reduction of carbon dioxide, comprises reducing carbon dioxide in an aqueous electrolyte on an electrocatalyst with electricity. The electrocatalyst is exposed to a magnetic field of at least 400 Gauss, the electrocatalyst comprises at least one paramagnetic material, and an amount of ethanol produced by the… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Method and apparatus for electrochemical productio… | 135 |
| 2 | Low-voltage alkaline production using hydrogen and… | 111 |
| 3 | Electrode with electrocatalytic surface | 101 |
| 4 | Acid promoted electrocatalytic reduction of carbon… | 99 |
| 5 | Electrode catalyst for electrolytic reduction of c… | 98 |
| 6 | Electro-catalysts for the oxidation of ammonia in … | 87 |
| 7 | Method for electrolytic reduction of carbon dioxid… | 86 |
| 8 | 用于电催化CO2还原至甲酸的铋基催化剂及其制备方法和应用 | 80 |
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
Four structural observations — maturity stage, applicant concentration, collaboration patterns, and geographic spread — frame the strategic context for any organization deciding where to place electrocatalysis Faradaic efficiency R&D bets.
Growth stage: filings expanding, academic IP still forming
The field is classified as Growth, with annual filing volume rising and the multi-year window showing 175% growth. The lifecycle assessment notes that recent years are understated by publication lag. Because the dominant filers are universities, core process and catalyst IP is still being established rather than consolidated by industrial players, leaving room for companies to build proprietary positions.
Growth stageModerate concentration with a broad, competitive second tier
The top five filers hold 18% of the combined output of the hundred largest filers — moderate rather than oligopolistic. The tier gap between the top three (37–53 patent families each) and the next cluster (28–31 families) is meaningful but not insurmountable. An industrial entrant with a focused catalyst innovation program could realistically enter the top 10 within a few filing cycles.
Moderate concentrationUniversity–industry and university–spinoff co-filing are the dominant collaboration modes
The most active co-filing pair is the University of Toronto with TotalEnergies (15 joint families) and its affiliated entity TotalEnergies Onetech (9 families), representing the most prominent industry–academia link in the corpus. Zhejiang University of Technology co-files with its Moganshan Research Institute (5 families) and its Shaoxing Research Institute (3 families), while Zhejiang University co-files with its Quzhou Research Institute (5 families) and Zhejiang Baima Lake Laboratory (4 families). Beijing University of Chemical Technology co-files with the Quzhou Resource and Chemical Engineering Innovation Research Institute (4 families).
University-led ecosystemChina-dominant filing, with meaningful PCT and US secondary coverage
China leads jurisdictional activity by a wide margin, followed by the United States, WIPO PCT, and the European Patent Office. India and Canada represent smaller but notable secondary markets. The concentration of filings in China reflects the dominance of Chinese academic filers and signals that freedom-to-operate analysis for any commercial deployment must prioritize Chinese national patents alongside PCT-derived international coverage.
China-centric geographyGo 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 |
|---|---|---|
| Governing Council of the University of Toronto | TotalEnergies | 15 |
| Governing Council of the University of Toronto | TotalEnergies Onetech | 9 |
| Zhejiang University of Technology | Deqing County Zhejiang University of Technology Moganshan Research Institute | 5 |
| Zhejiang University | Zhejiang University Quzhou Research Institute | 5 |
| Zhejiang University | Zhejiang Baima Lake Laboratory Co., Ltd. | 4 |
| Governing Council of the University of Toronto | California Institute of Technology | 4 |
| Beijing University of Chemical Technology | Quzhou Resource and Chemical Engineering Innovation Research Institute | 4 |
| Zhejiang University of Technology | Zhejiang University of Technology Shaoxing Research Institute | 3 |
| East China University of Science and Technology | Shanghai Rongwei Industrial Co., Ltd. | 3 |
| Zhejiang University | Zhejiang Hengyi Petrochemical Research Institute Co., Ltd. | 2 |
Co-filing pairs, ranked by the number of jointly-filed patent families.
Zhejiang University of Technology leads; University of Toronto is the strongest international presence
The top two positions are held by Chinese universities with converging technology emphases, while the University of Toronto stands out as the leading non-Chinese filer with a distinct focus on CO2 reduction pathways and a notable recent filing decline.
Zhejiang University of Technology
Holding 53 patent families, Zhejiang University of Technology is the top-ranked filer and is classified as a new entrant in terms of momentum, with 32 families filed in the recent period — indicating its position has been built rapidly. Its technology focus is concentrated in C25B 11 (electrolytic production, electrode materials), C25B 3, and C25B 1, reflecting a broad coverage of electrolytic compound production rather than a narrow niche.
patent families: 53University of Toronto (Governing Council)
The University of Toronto holds 37 patent families and is the strongest non-Chinese filer, with a technology emphasis that differentiates it from the Chinese leaders: its top sub-class is C25B 3 (electrolytic reduction, notably CO2 reduction), ahead of C25B 11 and C25B 9 (electrolytic cells). Its recent filing trend shows a decline of 46% versus the prior period, which may reflect a maturing of its core CO2-reduction program or a shift toward commercialization via its industry partners TotalEnergies and TotalEnergies Onetech.
patent families: 37| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| Zhejiang University of Technology | 32 | ▲ new entrant |
| Zhejiang University | 25 | ▲ new entrant |
| Governing Council of the University of Toronto | 13 | ▼ -46% |
| Beijing University of Chemical Technology | 17 | ▲ new entrant |
| Tianjin University | 20 | ▲ new entrant |
| Dalian University of Technology | 15 | ▲ new entrant |
| South China University of Technology | 15 | ▲ new entrant |
| East China University of Science and Technology | 11 | ▲ new entrant |
Under-served branches adjacent to the dominant C25B core
Several IPC branches sit adjacent to the dominant C25B electrolytic production class but are represented at much lower counts relative to the corpus total. These observations of relative sparsity may indicate room for differentiated positioning, though each requires technical and commercial feasibility assessment before being treated as an actionable opportunity.
B82Y · Nanotechnology applications in electrocatalysis
With a count of 181 and a share of 5% among the observed branches, B82Y (nanotechnology applications and properties) is an adjacent branch that is sparse relative to C25B’s dominance. Nanostructured catalyst design is a plausible entry path: engineering nanoscale active-site density and defect structures to improve Faradaic selectivity is an active research direction, and the relatively low filing volume suggests that IP coverage in the intersection of nanotechnology and Faradaic efficiency metrics is not yet crowded. Organizations with materials synthesis capabilities may find differentiated space here.
Search this in Eureka →H01M · Batteries, cells and fuel cells adjacent to Faradaic efficiency
H01M (batteries, cells and fuel cells) appears at a count of 154 and a share of 5%, indicating that the application of Faradaic efficiency optimization to fuel cell and electrolyzer cell design is underrepresented relative to the core catalyst material focus. The intersection of Faradaic efficiency metrics with membrane electrode assembly and cell architecture design is technically relevant for green hydrogen and CO2 electrolysis systems, and the sparse filing count relative to the broader C25B corpus suggests this systems-level perspective has not been extensively patented. Entrants with electrolyzer engineering or fuel cell stack expertise may find adjacent IP room.
Search this in Eureka →How leading applicants differ by electrolytic production sub-route
Route coverage across the main technology branches in the current evidence set.
| Player | C25B 11 · Electrolytic production of compounds | C25B 1 · Electrolytic production of compounds | C25B 3 · Electrolytic production of compounds | C25B 9 · Electrolytic production of compounds | B01J 23 · Chemical/physical processes & catalysis |
|---|---|---|---|---|---|
| Zhejiang University of Technology | Strong · 51 | Moderate · 25 | Strong · 29 | Absent | Absent |
| Zhejiang University | Strong · 46 | Strong · 33 | Moderate · 21 | Absent | Absent |
| Governing Council of the University of Toronto | Strong · 29 | Absent | Strong · 36 | Moderate · 17 | Emerging · 5 |
| Tianjin University | Strong · 29 | Moderate · 14 | Strong · 17 | Absent | Absent |
| South China University of Technology | Strong · 25 | Strong · 14 | Strong · 15 | Absent | Absent |
| Beijing University of Chemical Technology | Strong · 29 | Absent | Strong · 20 | Absent | Absent |
| Eltech Systems Corporation | Strong · 25 | Strong · 14 | Absent | Moderate · 7 | Absent |
Frequently asked questions
The evidence corpus contains 1,556 patent families in scope for electrocatalysis Faradaic efficiency, spanning multiple jurisdictions and filing years.
Zhejiang University of Technology leads with 53 patent families, followed by Zhejiang University with 48 and the Governing Council of the University of Toronto with 37.
The field is assessed as being in a Growth stage. Annual filings have risen substantially over the observed window, with a 175% growth rate recorded. Recent years are understated due to publication lag and should not be interpreted as a slowdown.
China leads jurisdictional activity by a wide margin, followed by the United States, WIPO PCT filings, and the European Patent Office. India and Canada represent smaller secondary markets.
C25B (electrolytic production of compounds) is overwhelmingly dominant. Secondary branches include B01J (chemical and physical processes and catalysis), B82Y (nanotechnology applications), H01M (batteries, cells and fuel cells), and C01B (non-metallic elements and inorganic compounds), each at substantially lower counts.
The most active co-filing relationship is between the University of Toronto and TotalEnergies, with 15 joint patent families, plus an additional 9 with TotalEnergies’ affiliated entity. Several Chinese universities also co-file actively with their own affiliated research institutes and spinoff organizations.
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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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