Photocatalytic Reactor Patent Landscape 2026
Syzygy Plasmonics holds a commanding lead among the hundred largest filers, with the field in a confirmed growth stage — filings have risen 17% over the recent window. The competitive structure is moderately concentrated at the top but broadly distributed beneath, with research institutions and universities making up the majority of ranked applicants.
Syzygy Plasmonics leads a field dominated by research institutions
Syzygy Plasmonics is the clear ranked leader with 100 patent families, more than double the second-ranked applicant, the Council of Scientific and Industrial Research at 42 patent families. The top five filers together account for 23% of the combined output of the hundred largest filers.
The tier gap between Syzygy Plasmonics and the rest is significant: the second through fifth ranked applicants — Council of Scientific and Industrial Research, Dyson Technology, CNRS, and the Arizona Board of Regents — each hold between 20 and 42 patent families, forming a tightly clustered challenger group well behind the leader. Below rank five, the field disperses rapidly into a long tail of universities, national research institutes, and smaller commercial entities.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | Syzygy Plasmonics Inc | 100 | |
| 2 | COUNCIL OF SCI & IND RES | 42 | |
| 3 | Dyson Technology Ltd | 22 | |
| 4 | French National Centre for Scientific Research (CNRS) | 22 | |
| 5 | Arizona Board of Regents on behalf of the University of Arizona | 20 | |
| 6 | Korea Research Institute of Chemical Technology | 18 | |
| 7 | United Arab Emirates University | 17 | |
| 8 | UVPS Environmental Solutions | 15 | |
| 9 | University of Central Florida | 15 | |
| 10 | SABIC Global Technologies BV | 15 |
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 11 | Saudi Arabian Oil Company (Saudi Aramco) | 14 | |
| 12 | King Fahd University of Petroleum and Minerals | 14 | |
| 13 | Universiti Teknologi Malaysia | 13 | |
| 14 | Hohai University | 13 | |
| 15 | University of Gdansk | 12 | |
| 16 | Fully Evergreen Investment Ltd | 11 | |
| 17 | Nanyang Technological University | 10 | |
| 18 | E HELLER & CO | 10 | |
| 19 | KSE Inc | 10 | |
| 20 | Johnson Matthey PLC | 10 |
Syzygy Plasmonics’ position, more than twice the nearest rival, signals an intentional IP-building strategy rather than incidental portfolio accumulation. The strong presence of public research institutions (CNRS, Council of Scientific and Industrial Research, Korea Research Institute of Chemical Technology, UAE University) in the top ten indicates that much foundational photocatalytic reactor IP originates in academic and government labs, creating licensing and collaboration pathways for commercial entrants.
Filings from 2025 and 2026 are under-counted due to standard patent publication lag of 18–24 months; the apparent softening in those years does not reflect real activity. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Sustained growth with catalysis as the dominant technology branch
The annual filing trend and technology branch composition together reveal a field expanding on a multi-year basis, concentrated in core catalytic process patents but with measurable activity across water treatment, separation, and sterilisation applications.
Annual filing trend
Annual filings grew from 56 in 2017 to a recorded peak of 136 in 2024, with the multi-year window showing 17% recent growth. Volumes in 2025 and 2026 are substantially under-counted due to publication lag and should not be interpreted as a slowdown.
↗ Hover for values · click a bar to ask EurekaTechnology composition
B01J (Chemical/physical processes and catalysis) is the overwhelmingly dominant IPC branch, reflecting the core reactor and catalyst design focus of the field. C02F (water and wastewater treatment) is the second largest branch, underscoring the strong environmental remediation application base. B01D (separation processes), C01B (inorganic compounds), and A61L (sterilisation and disinfecting) follow, together indicating meaningful but secondary application streams in air purification and pathogen control.
↗ 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.
Photocatalytic fluidized bed reactor systems
The Invention describes photocatalytic reactor systems that employ fluidization of the photocatalyst. These systems are useful for performing chemical transformations on a chemical containing fluid, including for VOCs. Aspects of the invention include non-imaging optics, abrasion resistant coatings and photoreactor designs. (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Photocatalyst-binder compositions | 259 |
| 2 | Photocatalytic oxidation of organics using a porou… | 210 |
| 3 | Gas-solid photocatalytic oxidation of environmenta… | 193 |
| 4 | Degradation of organic chemicals with titanium cer… | 156 |
| 5 | Apparatus for photocatalytic fluid purification | 148 |
| 6 | Photocatalytic treatment of water | 144 |
| 7 | Photocatalytic oxidation of organics using a porou… | 124 |
| 8 | Apparatus for photocatalytic fluid purification | 121 |
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
The combination of growth-stage lifecycle, a single dominant commercial filer, and a research-institution-heavy challenger tier shapes the risk and opportunity profile for new entrants and incumbents alike.
Growth stage with filings tracking upward on a multi-year basis
The field is classified in a growth lifecycle stage, with recent-window filing growth of 17% and annual volumes rising from 56 in 2017 to a recorded peak of 136 in 2024. This trajectory indicates that core patent positions are still being established, and early movers can realistically secure foundational claims. Engineers evaluating entry should expect rising prosecution competition but also meaningful room to differentiate on reactor architecture and photocatalyst composition.
Growth stageOne strong commercial leader; challengers are mostly public-sector institutions
The top five filers hold 23% of the combined output of the hundred largest filers, with Syzygy Plasmonics alone accounting for a disproportionate share of that. The challenger tier — Council of Scientific and Industrial Research, Dyson Technology, CNRS, and the Arizona Board of Regents — is institution-heavy, meaning commercial players outside Syzygy Plasmonics have limited direct IP competition from other industry peers. This creates licensing and partnership opportunities for companies seeking to access foundational reactor and photocatalyst IP held by public research organisations.
Moderate concentrationCNRS anchors a dense European academic co-filing network
The most active co-filing relationships are centred on the French National Centre for Scientific Research (CNRS), which co-files with the Higher Scientific Research Council, the University of Strasbourg, the Ecole Normale Superieure, Paris Sciences et Lettres, the Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris, and Polytechnic University of Valencia, each with four joint filings. CNRS also co-files with the University of Caen, Claude Bernard University Lyon 1, and IFP Energies Nouvelles. This network suggests that European academic consortia are the primary engine of collaborative IP creation in this field.
Academic-led collaborationChina and the United States are the two primary filing destinations
China and the United States are the leading jurisdictions by filing volume, followed by India, WIPO PCT, and Europe via the EPO. The PCT route signals international protection intent, particularly relevant for reactor designs targeting global commercialisation. India’s prominent position reflects both domestic research activity and a growing commercial market. The presence of filings in Malaysia, South Korea, Israel, and Singapore points to Asia-Pacific as a secondary but strategically relevant filing theatre.
China–US dual leadGo 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 |
|---|---|---|
| French National Centre for Scientific Research (CNRS) | Higher Scientific Research Council | 4 |
| French National Centre for Scientific Research (CNRS) | University of Strasbourg | 4 |
| French National Centre for Scientific Research (CNRS) | Ecole Normale Superieure | 4 |
| French National Centre for Scientific Research (CNRS) | Paris Sciences et Lettres University | 4 |
| French National Centre for Scientific Research (CNRS) | Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris | 4 |
| French National Centre for Scientific Research (CNRS) | Polytechnic University of Valencia | 4 |
| French National Centre for Scientific Research (CNRS) | University of Caen | 3 |
| French National Centre for Scientific Research (CNRS) | Claude Bernard University Lyon 1 | 3 |
| French National Centre for Scientific Research (CNRS) | IFP Energies Nouvelles | 3 |
| French National Centre for Scientific Research (CNRS) | Louis Pasteur University Strasbourg | 2 |
Co-filing pairs, ranked by the number of jointly-filed patent families.
Syzygy Plasmonics leads on volume and momentum; Council of Scientific and Industrial Research leads among public-sector filers
Two distinct profiles dominate the ranking: a single fast-moving commercial filer and a broad set of national research institutions. The contrast in momentum between these profiles has important implications for IP strategy.
Syzygy Plasmonics Inc
With 100 patent families and a recent filing rate 3.8 times higher than its own prior three-year period, Syzygy Plasmonics is both the volume leader and the most accelerating filer in the field. Its technology focus is concentrated across B01J 35, B01J 19, and B01J 21 — all within core catalytic process and reactor design — indicating a deliberate effort to build broad foundational coverage in photocatalytic reactor architecture rather than niche application sub-fields.
families: 100Council of Scientific and Industrial Research
The Council of Scientific and Industrial Research holds 42 patent families, second in the ranking, but its recent filing trend is down 38% versus its prior three-year period, indicating a decelerating filing programme. Its technology emphasis spans B01J 35 (core catalysis), C01B 3 (hydrogen and inorganic compounds), and B01J 37 (catalyst preparation), suggesting engagement across both reactor design and photocatalyst synthesis. The deceleration may reflect a shift from broad filing to selective prosecution or commercialisation activity.
families: 42| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| Syzygy Plasmonics Inc | 38 | ▲ 3.8× vs prior 3-yr |
| Council of Scientific and Industrial Research | 8 | ▼ -38% |
| French National Centre for Scientific Research (CNRS) | 5 | ▲ new entrant |
| United Arab Emirates University | 10 | ▲ new entrant |
Under-served adjacent branches worth monitoring
Several IPC branches adjacent to the dominant B01J and C02F clusters show relatively low filing share. Two in particular combine sparse coverage with plausible technical rationale and realistic entry paths for teams active in photocatalytic reactor design.
B82Y · Nanotechnology applications
B82Y has 49 records and represents approximately 1% of the technology composition, despite nanotechnology being a well-recognised enabler of high-surface-area photocatalysts. The sparse coverage likely reflects classification conventions — nano-structured photocatalysts are often filed under B01J — but a targeted search in B82Y may reveal gaps in structured nanomaterial reactor integration. Teams developing nanoparticle-sensitised or quantum-dot-based photoreactors have a realistic entry path here, particularly in jurisdictions with strong nano-IP infrastructure such as the United States and Europe.
Search this in Eureka →A61L · Sterilising and disinfecting
A61L holds 139 records and a 4% share — meaningful in absolute terms but under-served relative to the scale of water treatment (C02F) coverage. Photocatalytic reactors for pathogen inactivation and surface disinfection represent a growing commercial application, accelerated by post-pandemic demand for UV-independent antimicrobial systems. The presence of United Arab Emirates University and UVPS Environmental Solutions in the top-15 applicants with water and sterilisation focus suggests commercial interest exists, but the branch remains less contested than core catalysis, leaving room for differentiated reactor configurations targeting medical, food-safety, or built-environment disinfection end-uses.
Search this in Eureka →How top applicants differ by technology route emphasis
Route coverage across the main technology branches in the current evidence set.
| Player | B01J 35 · Chemical/physical processes & catalysis | C02F 1 · Water & wastewater treatment | B01J 19 · Chemical/physical processes & catalysis | B01J 21 · Chemical/physical processes & catalysis | B01J 37 · Chemical/physical processes & catalysis |
|---|---|---|---|---|---|
| Syzygy Plasmonics Inc | Strong · 81 | Absent | Strong · 55 | Strong · 52 | Strong · 46 |
| Council of Scientific and Industrial Research | Strong · 39 | Absent | Absent | Absent | Moderate · 10 |
| University of Central Florida | Absent | Strong · 10 | Strong · 18 | Strong · 16 | Absent |
| E Heller & Co | Strong · 15 | Strong · 15 | Absent | Absent | Strong · 9 |
| United Arab Emirates University | Strong · 17 | Absent | Absent | Absent | Strong · 17 |
| Dyson Technology Ltd | Strong · 14 | Absent | Strong · 18 | Absent | Absent |
| Carmignani Gary M | Absent | Strong · 8 | Strong · 8 | Strong · 8 | Strong · 8 |
Frequently asked questions
Syzygy Plasmonics Inc is the top-ranked applicant with 100 patent families, more than twice the second-ranked filer, the Council of Scientific and Industrial Research at 42 patent families. Syzygy’s recent filing rate is also 3.8 times higher than its own prior three-year period, making it both the volume and momentum leader.
The dataset in scope contains 985 patent families. Filing volumes have grown from 56 in 2017 to a recorded peak of 136 in 2024, with a 17% recent-window growth rate confirming an active growth stage. Figures for 2025 and 2026 are under-counted due to publication lag.
China and the United States are the two leading filing destinations by patent record volume, followed by India, WIPO PCT, and Europe via the EPO. Canada, Australia, and Japan each also receive meaningful filing activity, and Malaysia and South Korea are notable secondary destinations in the Asia-Pacific region.
B01J (Chemical/physical processes and catalysis) is the dominant IPC branch by a wide margin. C02F (water and wastewater treatment) is the second largest, reflecting the strong environmental remediation application base. B01D (separation), C01B (inorganic compounds), and A61L (sterilisation and disinfecting) are the next most active branches.
The French National Centre for Scientific Research (CNRS) is at the centre of the most active collaboration network, co-filing with the Higher Scientific Research Council, the University of Strasbourg, the Ecole Normale Superieure, Paris Sciences et Lettres, the Ecole Superieure de Physique et de Chimie Industrielles, and Polytechnic University of Valencia. This dense European academic network indicates that collaborative IP in photocatalytic reactors is primarily generated through publicly funded research consortia, creating licensing and co-development pathways for commercial partners.
Two branches stand out as under-served relative to their technical relevance: B82Y (nanotechnology applications) has only 49 patent records despite nanotechnology’s centrality to photocatalyst performance, and A61L (sterilising and disinfecting) has 139 records but remains substantially less contested than the core water treatment branch. Both represent areas where targeted filings on reactor integration or application-specific configurations could differentiate a portfolio.
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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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