High-Barrier Film Patents: Leaders, Trends & White Space 2026
- Filings peaked in 2017 and have not returned to that level since, with 2022's midpoint year sitting at a single filing — a flat-to-declining line rather than a growth curve.
- B32B and C08J dominate the IPC mix, but H01L and H10K show up too, meaning a meaningful share of this durability testing art traces back to flexible electronics and OLED encapsulation, not just food or industrial packaging.
- The most-cited record in the set is a 2006 filing, still cited 169 times, and none of the tracked assignees show any filings in the latest year — a sign the active edge of this art has moved to newer, less-cited records.
Filing growth compares 2021 (2 records) with 2024 (0) — a three-year span. 2024 is the most recent year we treat as complete: publication lags filing by roughly 18 months, so 2025 onwards are still filling in and any growth rate that ends there would understate the field.
What this landscape covers
This landscape tracks patent families describing high-barrier film and related packaging film, specifically where the claims or description address humidity durability, flex durability, barrier retention or accelerated aging. The IPC scope spans B32B27 (layered products), C08J7 (polymer surface treatment) and G01N17 (material degradation testing), which pulls in both the film chemistry itself and the test methodology used to validate it.
The 61 families in scope span 2015 through the middle of 2026, with the most recent filing year necessarily undercounted because publication typically lags filing by around 18 months. Receiving-office data shows the bulk of activity filed through the United States and the EPO, with a smaller PCT and secondary-jurisdiction tail.
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Filing trend and technology composition
Two views of the same 61-family set: how filing activity has moved year over year, and which IPC subclasses the claims actually sit in.
Filing trend, 2017 peak to a flat line
Filings hit their tracked peak in 2017 at 5 and never re-established that pace; by the 2022 midpoint, annual filing had fallen to a single family. Treat the final one or two years on the chart as undercounted rather than as evidence of a real drop-off, since publication lag hides recent filings.
IPC composition: film chemistry plus electronics-grade encapsulation
B32B (layered products) and C08J (polymer processing) anchor the set, appearing in the majority of records. The presence of H01L, H05B and H10K in meaningful numbers signals that a real slice of this durability art belongs to flexible display and OLED encapsulation, where barrier retention under humidity and flex cycling is a hard reliability requirement, not just a packaging nicety.
Shares are the percentage of the 61 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on High-Barrier Film Environmental Durability with Eureka
This page is one run against one query. Ask Eureka your own question about high-barrier film environmental durability and every answer comes back with the patent numbers behind it.
Try EurekaThe records other filings build on
Gas barrier film and electronic device (US20130280521A1)
KONICA MINOLTA's filing combines a physical- or chemical-vapor-deposited SiN layer with a second, solution-coated polysilazane layer converted by vacuum ultraviolet irradiation, targeting gas barrier performance and heat resistance for use in electronic devices.Filed 2013-10-24 · cited 35 times within this set.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20060046006A1 | Multilayer polymeric barrier film, flexible packaging made therewith, and methods | 169 |
| 2 | US4716061A | Polypropylene/polyester nonoriented heat sealable moisture barrier film and bag | 119 |
| 3 | US4705707A | Polyethylene/polyester nonoriented heat sealable moisture barrier film and bag | 113 |
| 4 | US20130280521A1 | Gas barrier film and electronic device | 35 |
| 5 | US20130252002A1 | Gas barrier film, method of producing a gas barrier film, and electronic device | 29 |
| 6 | WO2014025570A1 | Barrier film constructions and methods of making same | 24 |
| 7 | US20160327719A1 | Quantum dot protective film, quantum dot film using same, and backlight unit | 19 |
| 8 | WO2014025348A1 | Coatings for barrier films and methods of making and using the same | 19 |
| 9 | US20150221886A1 | Coatings for barrier films and methods of making and using the same | 15 |
| 10 | US20190091976A1 | Barrier composites | 14 |
Citation counts reflect influence inside this searched corpus and skew toward older filings; a low-cited recent family can still be the more relevant prior art for a current design.
Each row carries its publication number; clicking a row searches Eureka by that number.
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Browse MCP servers →What the numbers say about where this field stands
Three signals worth acting on before deciding where to file or where to look for prior art.
Activity has cooled, not accelerated
The peak year for this durability-testing niche was 2017. By the 2022 midpoint the annual count had dropped to a single family, and the trend line does not show a rebound. That is consistent with a technology area where the core chemistry claims were staked out early and later filers are working narrower variations.
Influence sits with two 1980s multilayer films and one 2006 filing
The most-cited record in the set is a 2006 multilayer barrier film filing cited 169 times, followed closely by two much older heat-sealable moisture-barrier film patents from the mid-1980s still cited well over 100 times each. New entrants are building on decades-old chemistry, not displacing it.
Semiconductor and OLED encapsulation is a real second track
Barrier-film durability claims split across two audiences: conventional flexible packaging (B32B, C08J) and thin-film electronics encapsulation (H01L, H05B, H10K). A search or filing strategy that only covers packaging IPC codes will miss over a third of the relevant art.
No tracked assignee shows recent-year filings
Every assignee in the recent-momentum view, from established filers to named individual inventors, shows zero filings in the latest tracked year. Given the roughly 18-month publication lag, this likely reflects reporting delay rather than an actual halt in R&D — but it also means the newest competitive moves are not yet visible in the public record.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to high-barrier film environmental durability, with the prior art for and against each one.
Who holds the ground, and where the claim space is still open
The assignee list is a mix of established film and electronics manufacturers alongside a cluster of individually named co-inventors filing together repeatedly.
A tight inventor cluster files together repeatedly
Three named individuals — Roehrig, Nachtigal and Klun — appear together across multiple co-assignee pairs, each pairing linked on three filings. That density suggests a single sustained project team rather than three independent inventors who happened to collide.
Filing strategy concentrates on two jurisdictions
The United States and the European Patent Office together account for the large majority of receiving-office activity, with Singapore, WIPO/PCT, Germany and New Zealand making up a small secondary tail. A freedom-to-operate check outside the US and Europe has comparatively little art to clear.
The public record has gone quiet — read that with caution
Named corporate assignees and the individual-inventor cluster alike show no filings in the most recent tracked year. Combined with the overall flat-to-declining trend since 2017, this points to a mature, narrowly-claimed niche rather than an active filing race, though publication lag means the very latest work is not yet visible.
| Assignee | Recent year | YoY |
|---|---|---|
| 3M Innovative Properties Company | 0 | — |
| Konica Minolta, Inc. | 0 | — |
| Skin Protection Co., Ltd. | 0 | — |
| Toppan Holdings Inc. | 0 | — |
| ROEHRIG MARK A | 0 | — |
| NACHTIGAL ALAN K | 0 | — |
| KLUN THOMAS P | 0 | — |
| Bemis Company, Inc. | 0 | — |
Where to take this from here
The data points to specific next questions rather than a single conclusion.
Map the electronics-encapsulation split explicitly
Given that H01L, H05B and H10K together account for a substantial share of records, a follow-up search separating packaging-grade barrier film from electronics-grade encapsulation would sharpen freedom-to-operate conclusions on either side.
Explore in Eureka →Watch for a publication-lag catch-up
Zero recent-year filings across every tracked assignee is consistent with reporting delay rather than an actual stop. Re-running this landscape in 12–18 months should surface the filings currently hidden by that lag.
Set a monitoring alert →Common questions about this landscape
In this dataset, high-barrier film refers to layered or coated polymer films engineered to resist gas and moisture transmission, typically claimed under IPC classes like B32B (layered products) and C08J (polymer processing). Many of the most-cited records combine a base polymer layer with a deposited or coated barrier layer, such as a vapor-deposited SiN layer or a polysilazane coating. The term spans both conventional packaging film and the encapsulation layers used in flexible electronics, which is why the IPC mix includes semiconductor and OLED classes alongside packaging ones.
The tracked filing trend peaked in 2017 at 5 families and dropped to a single family by the 2022 midpoint, with no rebound visible through the most recent years. This pattern is typical of a niche where the core chemistry and test-method claims were staked out early, leaving later filers to pursue narrower variations rather than foundational ones. It's also worth treating the final one to two years of any trend chart as undercounted, since patent publication normally lags the actual filing date by around 18 months.
The most-cited record in this landscape is a 2006 filing on multilayer polymeric barrier film for flexible packaging, cited 169 times within this corpus. Two considerably older filings from the mid-1980s covering heat-sealable moisture-barrier film and bag constructions are each cited over 100 times, showing that foundational multilayer barrier chemistry from decades ago still anchors newer work. High citation counts favour older records simply because they've had more time to be cited, so they signal influence rather than current state-of-the-art status.
Yes — a meaningful portion of the 61 tracked families sit in H01L, H05B and H10K, IPC classes associated with semiconductor devices, electric heating/lighting circuits and organic semiconductors respectively. These records generally address gas barrier films used to protect moisture-sensitive electronic devices such as OLEDs, where humidity ingress causes device failure rather than just packaging degradation. A search limited to conventional packaging IPC codes would miss this entire branch of the art.
Based on the sub-areas showing thinner coverage relative to the dense clusters, promising areas include vacuum-UV conversion methods for polysilazane coatings, standardized flex-cycling test protocols specifically for barrier retention, and accelerated-aging correlation methods that tie lab test results to real-world lifetime. These are technically adjacent to the heavily claimed multilayer film and vapor-deposition space but appear less saturated in this dataset. Any white-space read should be paired with a live search, since a thin count here can also reflect narrower search terms rather than an actually open area.
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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.