Metalens Reliability and Durability Patents: Who Leads, Gaps 2026
- 20 families total, peaking at 9 filings in 2025 off a 2022 midpoint of 6 — growth, but on a still-small base.
- G02B holds 11 of 20 records, while G02F, H01L and H10W carry only 2 each and A01M just 1, marking the thinnest claimed branches.
- Every tracked assignee shows 0 filings in the latest year, including Intel, Stanford, ETH Zurich, EPFL and Harvard — momentum has stalled across the board, not shifted to a new leader.
What this patent landscape covers
This landscape tracks 20 published patent families that combine metalens, meta-lens or metasurface-lens terminology with claims around environmental durability, optical damage resistance or long-term stability. It spans filings from 2015 through the 2026-07-31 data cut-off, with the majority routed through the United States receiving office and a smaller share filed via WIPO’s PCT system.
The corpus is small enough that individual filings move the trend meaningfully, and the most recent year is understated by the roughly 18-month gap between filing and publication. Read the filing curve and assignee rankings as directional signals of where reliability and durability claims are being staked, not as a settled or exhaustive record of the field.
Filing trend and technology composition
Twenty published families define this dataset, filed against a search combining metalens or metasurface-lens terms with environmental durability, optical damage resistance or long-term stability language. The small sample size means single filings can shift year-over-year percentages sharply — read the trend as directional, not statistical.
Filing activity, 2017-2026
Filings sat at zero in 2017, reached a midpoint of 6 by 2022, and peaked so far at 9 in 2025. 2026 is a partial year at the time of this data cut and will understate actual filing activity once later publications land, given the roughly 18-month lag between filing and publication.
Technology composition by IPC subclass
G02B (optical elements & systems) accounts for 11 of the 20 records, the clear majority. H01Q, H01S and H04B each hold 4, reflecting durability claims embedded in antenna, laser and transmission systems rather than filed as standalone optical elements. G02F, H01L and H10W hold 2 apiece, and A01M holds a single outlier record.
Shares are the percentage of the 20 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Metalens Reliability and Durability with Eureka
This page is one run against one query. Ask Eureka your own question about metalens reliability and durability and every answer comes back with the patent numbers behind it.
Try EurekaMost-cited and representative filings
Metasurface optofluidics for reflective displays integrated on transparent substrate
This work relates to a geometric-phase metasurface combined with a fluidic circuit for tuning the properties of the metasurface, especially its diffraction efficiency. Two aspects are covered: dynamic on-demand diffractive optics operating in transmission, both as optical elements for altering incident light and as sensors of refractive index, and transparent reflective displays that are themselves transmissive but operate in reflection — replacing the lens array often needed in light field displays.Filed by the Board of Trustees of the Leland Stanford Junior University, published 2024-12-12.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20190025510A1 | Spatial Control of the Optical Focusing Properties of Photonic Nanojets | 13 |
| 2 | US20260123620A1 | Laser – based targeting and object detection system | 11 |
| 3 | US20240411052A1 | Metasurface optofluidics for reflective displays integrated on transparent substrate | 6 |
| 4 | US20240429627A1 | On-chip terahertz thin-film devices | 4 |
| 5 | WO2023076256A1 | Metasurface optofluidics for reflective displays integrated on transparent substrate | 3 |
| 6 | WO2023214995A2 | Geometric-phase metasurface optofluidics for dynamic on-demand flat optics and ultra-compact refractometers | 2 |
| 7 | US20250358018A1 | Packet switching using an isolated memory region accessible by optical interconnects | 1 |
| 8 | US20250271594A1 | Geometric-phase metasurface optofluidics for dynamic on-demand flat optics and ultra-compact refractometers | 1 |
| 9 | US10416383B2 | Spatial control of the optical focusing properties of photonic nanojets | 1 |
Ranked by citation count within the 20-family corpus; older filings naturally accumulate more citations, so treat this as a signal of influence rather than of current commercial importance.
Publication numbers are shown where the record carries one (9 of 9 rows); clicking a row searches Eureka by that number.
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Citation weight and filing recency point in different directions here: the most-relied-upon records are several years old, while the busiest filing year is the most recent complete one. Reading both together avoids over-crediting either the newest filings or the oldest citations.
Early photonic-nanojet claim still anchors the field
US20190025510A1, covering spatial control of the focusing properties of photonic nanojets, is cited 13 times — the most of any record in this corpus. That level of reliance inside a 20-family dataset means most subsequent filers in this space had to search against, and often distinguish from, this one document.
Durability claims are moving into system-level contexts
Antenna (H01Q), laser (H01S) and transmission (H04B) subclasses each hold 4 records, showing that reliability and durability claims are increasingly framed around a specific end-use system rather than filed as a standalone optical-element patent.
No single filer is currently accelerating
Intel, Stanford, ETH Zurich, EPFL, Harvard and the University of Illinois all register zero filings in the most recent tracked year. That is a flat signal across the board rather than a shift in leadership, though the most recent year is also the one most understated by publication lag.
Academic co-filing stays within a small cluster
All three recorded co-assignee pairs link ETH Zurich, EPFL and Harvard to one another, with two shared filings in each combination. No industry co-assignee appears among these pairs, suggesting corporate filers in this space are filing solo rather than jointly with these university groups.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to metalens reliability and durability, with the prior art for and against each one.
| Assignee | Co-assignee | Shared families |
|---|---|---|
| ETH Zurich (Swiss Federal Institute of Technology Zurich) | EPFL (Ecole Polytechnique Federale de Lausanne) | 2 |
| ETH Zurich (Swiss Federal Institute of Technology Zurich) | President and Fellows of Harvard College | 2 |
| EPFL (Ecole Polytechnique Federale de Lausanne) | President and Fellows of Harvard College | 2 |
ETH Zurich, EPFL and Harvard appear together across all three recorded co-assignee pairs in this dataset, each pair sharing 2 filings — a tight, university-only collaboration network with no corporate co-filer yet visible in the record.
Who is filing, and where the claim space is thin
Six named assignees anchor this dataset, spanning both corporate and academic filers, but every one of them shows zero filings in the most recent tracked year. That flat momentum, combined with a corpus concentrated in G02B, leaves several application-specific branches with only one or two filings each.
Intel
Intel appears among the tracked assignees with a -100% year-over-year change, registering zero filings in the latest tracked year after having filed previously. Its presence signals corporate interest in metalens durability claims even without current momentum.
Stanford
Stanford holds the representative filing in this dataset, US20240411052A1, covering fluidic-tuned metasurface optofluidics for reflective displays. It is one of six named academic and corporate assignees tracked, also currently at zero filings in the latest year.
ETH Zurich, EPFL and Harvard
These three institutions form every recorded co-assignee pair in the dataset, each combination sharing 2 filings. No corporate co-filer appears alongside them, marking a self-contained academic collaboration network.
| Assignee | Recent year | YoY |
|---|---|---|
| Intel Corporation | 0 | -100% |
| The Board of Trustees of the Leland Stanford Junior University | 0 | — |
| ETH Zurich (Swiss Federal Institute of Technology Zurich) | 0 | — |
| EPFL (Ecole Polytechnique Federale de Lausanne) | 0 | — |
| President and Fellows of Harvard College | 0 | — |
| The Board of Trustees of the University of Illinois | 0 | — |
| Blue Laser Fusion, Inc. | 0 | -100% |
| Qunmai Communication Co., Ltd. | 0 | -100% |
Where to take this analysis
The filing and citation data point to specific next steps depending on whether the goal is freedom-to-operate clearance, white-space filing strategy, or competitive monitoring.
Clear freedom-to-operate against the top-cited claims
Start with US20190025510A1 and US20260123620A1, the two highest-cited records in this corpus, before reviewing Stanford's fluidic-tuning filing if the design involves tunable diffraction efficiency.
Run a claim chart in EurekaDraft into the thinnest IPC branches
G02F, H01L and H10W each hold only 2 records against G02B's 11, and A01M holds just 1 — these are the branches with the least direct prior art in this dataset.
Explore IPC white space in EurekaWatch for renewed filing after the flat year
Every tracked assignee shows zero filings in the latest year; publication lag means 2026 filings may not have surfaced yet, so re-checking this dataset in six to twelve months will sharpen the momentum picture.
Set a monitoring alert in EurekaFrequently asked questions
This dataset tracks 20 published patent families that combine metalens or metasurface-lens terminology with environmental durability, optical damage resistance or long-term stability claim language, covering filings from 2015 through mid-2026. That is a small, still-forming corpus compared to broader metasurface optics filing volumes, which means individual filings carry more relative weight in any trend reading. Treat percentage changes year over year with caution given the low base count.
The tracked assignees include Intel, Stanford, ETH Zurich, EPFL, Harvard and the University of Illinois, several of which appear together in co-assignee pairs suggesting joint academic research programmes. None of these assignees show filings in the most recent tracked year, so momentum across the named leaders has gone flat rather than concentrating further with any single filer. A long tail of smaller or single-filing entrants sits beneath this group.
In this dataset the terms are used largely interchangeably at the search-string level, and most records use metasurface language to describe the underlying nanostructured optical element while metalens describes its lens function. Claim drafting distinguishes them mainly by whether the invention covers the surface structure itself (metasurface) or the assembled focusing element (metalens) — G02B classification dominates either framing. Practitioners should check both terms when running freedom-to-operate searches in this space.
By record count, A01M (a single pest/vermin-control application), G02F optical control and modulation, H01L semiconductor integration and H10W each show only one or two filings against G02B's eleven, making them the thinnest branches in this corpus. That does not guarantee the space is unclaimed outside this specific search string, but within this dataset it marks where claim density is lowest. Filers considering solid-state tuning mechanisms or semiconductor-integrated durability approaches face less directly on-point prior art here than in the bare optical-element branch.
US20240411052A1, assigned to Stanford, claims a geometric-phase metasurface combined with a fluidic circuit that tunes diffraction efficiency, covering both dynamic diffractive optics and transparent reflective displays. It is a real obstacle for anyone building fluid-tuned metalens efficiency control, and a related WO2023076256A1 filing extends similar coverage into PCT jurisdictions. It does not reach solid-state tuning mechanisms such as electro-optic, piezo or MEMS actuation, which remain open alternative design paths.
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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.
Machine translation. Assignee and organisation names originally recorded in Chinese, Japanese or Korean have been rendered into English by an AI translation step so that the tables stay readable. These renderings are best-effort and may not match a company’s registered English name; the original name is what the underlying patent record carries, and it is what any Eureka query launched from this page uses.