Optical Coating System Patent Landscape 2026
Optical Coating System Patent Landscape in 2026
The optical coating system patent space spans 88 patent families and is moderately concentrated, with Flo Optics Ltd emerging as the dominant new entrant while established players such as Corning and Raytheon hold durable positions. Activity peaked in 2024 and has since eased, placing this field in a declining phase by annual volume even as multi-year engagement remains broad across optics, deposition, and glass-composition branches.
Flo Optics leads a moderately concentrated field with established challengers close behind
Flo Optics Ltd holds the top position with 25 patent records, followed by Corning Inc at 20 and Raytheon Co at 14. The top five filers collectively account for 27% of the combined total of the hundred largest filers, signaling moderate concentration rather than dominance by a single incumbent.
A visible tier gap separates the top three — Flo Optics, Corning, and Raytheon — from a second cluster including Sony Group Corp and Kopin Corp. Below that, the field opens into a long tail of single-digit holders spanning defense, display, and specialty-glass sectors.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | Flo Optics Ltd | 25 | |
| 2 | Corning Inc | 20 | |
| 3 | Raytheon Co | 14 | |
| 4 | Sony Group Corp | 12 | |
| 5 | Kopin Corp | 9 | |
| 6 | Vitro Flat Glass LLC | 8 | |
| 7 | Denglas Tech | 7 | |
| 8 | JDS Uniphase Corp | 7 | |
| 9 | Optical Coating Laboratory Inc | 7 | |
| 10 | Honeywell International Inc | 6 |
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 11 | Finisar Corp | 5 | |
| 12 | Innovega Inc | 5 | |
| 13 | Flex Products Inc | 5 | |
| 14 | 3M Innovative Properties Co | 5 | |
| 15 | Panasonic Holdings Corp | 5 | |
| 16 | Oerlikon Surface Solutions AG Pfaffikon | 5 | |
| 17 | Hughes Aircraft Co | 5 | |
| 18 | Eastman Kodak Co | 4 | |
| 19 | Lightwaves 2020 | 4 | |
| 20 | OmniVision Technologies Inc | 4 |
Flo Optics’ position as a new entrant with the largest patent record count suggests a concentrated and recent filing campaign rather than decades of accumulated portfolio depth, which distinguishes it from Corning and Raytheon whose positions reflect longer-standing R&D programs.
The most recent 18–24 months of filings are subject to publication lag and may undercount actual activity; the 2025 and 2026 figures should be treated as provisional. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
A 2024 filing spike dominates the trend; optical elements remain the overwhelming technology branch
The annual filing chart reveals a pronounced 2024 spike that accounts for a disproportionate share of recent activity, followed by a sharp pullback in 2025–2026 that is partly attributable to publication lag. The technology composition chart shows G02B (Optical Elements & Systems) as the dominant IPC branch, with deposition, glass-composition, and optical-control branches each occupying secondary but meaningful positions.
Annual filing trend
Annual filings rose gradually from 2017 to a peak of 21 in 2024, then fell to single digits in 2025–2026 — though the latter years are undercounted due to publication lag and should not be read as a confirmed structural decline. The 2021–2023 trough (2–6 per year) reflects either a genuine pause or delayed publication of applications filed during that period.
↗ Hover for values · click a bar to ask EurekaTechnology composition
G02B (Optical Elements & Systems) dominates the branch mix with 285 records, roughly six times the next-largest branches — C23C (Coating & Surface Deposition) and C03C (Glass & Enamel Compositions) at 43 and 42 records respectively. G02F (Optical Control & Modulation) and B32B (Layered Products & Laminates) follow, indicating that functional coating performance and multilayer integration are active secondary themes.
↗ 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.
Optical thin-film coating of a lens barrel
Portions of a lens barrel for an optical imaging system can be coated with an optical thin-film coating to prevent unwanted light, such as flare, from reaching an image sensor. The optical thin-film coating can be a multi-layered structure formed from alternating layers of a low-refractive-index material and a high-refractive-index material. The coating can… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Flat and transparent front-lighting system using m… | 294 |
| 2 | Linear aperture deposition apparatus and coating p… | 239 |
| 3 | Film coated optical lithography elements and metho… | 169 |
| 4 | Adjusting optical properties of optical thin films | 112 |
| 5 | Composite thin film holding substrate, transparent… | 109 |
| 6 | Repositionable optical cover for monitors | 105 |
| 7 | Viewer With Display Overlay | 98 |
| 8 | Beam steering optical arrangement using Risley pri… | 96 |
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 patent structure means for R&D investment decisions
The combination of a peaked filing trend, moderate concentration, and a wide IPC branch spread points to a maturing field with selective areas of continued investment. Engineers should weigh portfolio gaps in deposition process and layered-product branches against the entrenched positions in core optical-element design.
Field in decline by annual volume after a 2024 peak
The lifecycle stage is classified as Decline, with annual filings easing back from the 2024 peak of 21. On a multi-year basis the corpus reaches 88 patent families, but the trajectory of new filings is now contracting. This suggests the field’s foundational concepts are well-protected and incremental improvement cycles are shortening, directing R&D attention toward adjacent or application-specific claims.
Lifecycle · DeclineModerate concentration with a visible tier gap below the top three
The top five filers hold 27% of the combined output of the hundred largest filers, a level that indicates meaningful but not overwhelming concentration. The gap between the top three (Flo Optics 25, Corning 20, Raytheon 14) and the second cluster (Sony 12, Kopin 9) is significant enough that challengers would need sustained filing campaigns to close it. The long tail of single-digit holders offers potential acquisition or licensing targets for firms seeking rapid position.
Concentration · ModerateNo co-applicant activity detected in this corpus
The collaboration data returns no co-filing pairs in the current scope, indicating that optical coating system IP has developed through independent proprietary programs rather than joint ventures or research consortia. This absence of cross-entity filings may reflect the competitive sensitivity of coating formulations and deposition process know-how. New entrants should not expect an established open-innovation ecosystem to draw from.
Collaboration · None detectedUS-centric protection with meaningful EPO and PCT coverage
The United States is the lead filing jurisdiction with 116 patent records, followed by Europe (EPO) at 56 and WIPO (PCT) at 29 — together covering the three major prosecution routes. Israel (20 records) and Japan (18) represent secondary markets of note, consistent with their active defense-optics and consumer-display industries respectively. China has only 6 records, suggesting either limited commercialization strategy there or an unprotected opportunity for local entrants.
Geography · US-ledGo 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.
Flo Optics leads in volume; Corning anchors its position with optical-element and lithography depth
Two distinct competitive profiles emerge: Flo Optics as a concentrated new entrant focused on optical element and spectacle-lens coatings, and Corning as a broad-portfolio incumbent spanning optical elements, photolithography, and lens systems. The remaining ranked players cover defense beam-steering, display components, automotive glass, and specialty deposition.
Flo Optics Ltd
Flo Optics Ltd leads the ranking with 25 patent records and is classified as a new entrant with a sharply rising trajectory (19 of those records filed in the recent window). Its technology emphasis is tightly focused on G02B 1 and G02B 5 (optical element coatings) and G02C 7 (spectacle and lens coatings), indicating a product-specific strategy rather than a broad platform play. The concentration of recent filings suggests an aggressive position-building campaign rather than organic portfolio growth.
patent records: 25Corning Inc
Corning Inc holds 20 patent records with a technology spread across G02B 5 (optical element coatings), G03F 7 (photolithography), and G02B 3 (lenses), reflecting its dual exposure to specialty optics and semiconductor-adjacent processes. No specific momentum trend is available for Corning beyond the applicant ranking, but its multi-decade presence across optical glass, display, and photonics substrate markets supports a durable incumbency. Its photolithography overlap positions it to engage with advanced semiconductor packaging demand.
patent records: 20| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| Flo Optics Ltd | 19 | ▲ new entrant |
Under-served deposition and optical-control branches adjacent to the core optics cluster
Relative to the dominant G02B cluster, several IPC branches show lower patent-record counts despite clear technical relevance to optical coating systems. These are observations of relative sparsity; they merit further validation before being treated as confirmed investment opportunities.
C23C · Coating & Surface Deposition Processes
C23C carries 43 patent records — about 15% of the G02B total — despite being the process-level complement to optical element design. Deposition technique IP (sputtering, CVD, ALD) is foundational to coating performance yet remains sparsely filed within this corpus relative to end-product claims. For teams with process-chemistry capability, tighter process-claim coverage in this branch could create freedom-to-operate advantages and licensing leverage. Entry would likely involve precision thin-film deposition for AR, anti-reflective, and hard-coat applications.
Search this in Eureka →G02F · Optical Control & Modulation
G02F (Optical Control & Modulation) holds 42 patent records — comparable to C23C but sparse relative to core optical-element filings. Tunable and switchable coating systems (electrochromic, liquid-crystal-integrated, or MEMS-actuated) sit in this branch and are increasingly relevant to smart-glass, AR displays, and adaptive optics. The low count suggests limited IP encumbrance in dynamic or electrically tunable coating architectures, making it an observable gap for teams bridging functional coatings with active control. Commercial viability depends on integration complexity with existing device platforms.
Search this in Eureka →How leading applicants differ by IPC technology route
Strength of each leader across the main technology routes.
| Player | G02B 5 · Optical elements & systems | G02B 1 · Optical elements & systems | G02B 27 · Optical elements & systems | G02F 1 · Optical control & modulation | C03C 17 · Glass & enamel compositions |
|---|---|---|---|---|---|
| Flo Optics Ltd | Strong · 11 | Strong · 19 | Absent | Absent | Absent |
| Vitro Flat Glass LLC | Strong · 8 | Strong · 5 | Strong · 6 | Absent | Strong · 7 |
| Panasonic Holdings Corp | Strong · 8 | Strong · 8 | Absent | Strong · 6 | Absent |
| Hughes Aircraft Co | Strong · 5 | Absent | Strong · 6 | Strong · 6 | Absent |
| Honeywell International Inc | Strong · 5 | Strong · 6 | Absent | Absent | Strong · 5 |
| Corning Inc | Strong · 11 | Absent | Absent | Absent | Moderate · 4 |
| Eastman Kodak Co | Strong · 6 | Absent | Strong · 4 | Moderate · 3 | Absent |
Frequently asked questions
The corpus covers 88 patent families in scope across the analyzed period.
Flo Optics Ltd leads with 25 patent records. It is classified as a new entrant whose recent filings account for 19 of that total, indicating a concentrated and recent campaign rather than a long-standing portfolio.
The field is assessed as Decline, with annual filings easing back from a peak of 21 in 2024. This reflects the stage of the annual volume curve; the most recent 2025–2026 figures are subject to publication lag.
The United States is the lead jurisdiction with 116 patent records, followed by Europe (EPO) at 56 and WIPO (PCT) at 29. Israel and Japan are notable secondary markets. China has only 6 records, representing a relatively thin protection footprint.
G02B (Optical Elements & Systems) dominates with 285 patent records. Secondary branches include C23C (Coating & Surface Deposition) at 43, C03C (Glass & Enamel Compositions) at 42, and G02F (Optical Control & Modulation) at 42.
No co-applicant or co-filing activity is detected in the current corpus. Optical coating system IP appears to have developed through independent proprietary programs, with no evidence of joint ventures or research consortia among the ranked applicants.
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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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