High-Barrier Film (Oxygen/Moisture) Patent Landscape 2026
The high-barrier film space is in a growth stage with filing activity up 37% in the recent window, anchored by a highly fragmented field where no single applicant commands a dominant share. China is the leading filing jurisdiction, and the technology is concentrated in layered-laminate and packaging structures.
A fragmented field with no dominant leader — top five share 17% among the hundred largest filers
The 165 patent families in scope are spread across a large number of applicants, with the top-ranked filers — Flex Films USA Inc and Alcan Packaging Italia SRL — each holding 7 patent families, tied at the apex of the ranking.
The top five filers together account for 17% of the combined output of the hundred largest filers, signaling a low-concentration field with no single entity in a position to exert architectural control. The gap between the first tier and the mid-tier is narrow, meaning challengers can credibly contest leadership with focused filing programs.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | Flex Films USA Inc | 7 | |
| 2 | Alcan Packaging Italia SRL | 7 | |
| 3 | Zhongsu New Materials Technology (Hangzhou) Co., Ltd. | 7 | |
| 4 | Guangdong Wanshun Technology Co., Ltd. | 5 | |
| 5 | Lucky Huaguang Graphics | 5 | |
| 6 | Shandong Yongju Medical Technology | 5 | |
| 7 | Jindal Films Euro Virton SPRL | 5 | |
| 8 | Qingdao Creek New Environmental Protection Material | 4 | |
| 9 | Anhui Keruike Insulation Material | 4 | |
| 10 | Reiko Co., Ltd. | 4 |
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 11 | Henan Huafu Packaging Technology Co., Ltd. | 4 | |
| 12 | Cryovac Inc | 4 | |
| 13 | Guangzhou Lushan New Materials | 3 | |
| 14 | National Institute of Clean and Low Carbon Energy | 3 | |
| 15 | Anhui Kensihui New Materials Co., Ltd. | 3 | |
| 16 | Chaoyang Fureida Technology Co., Ltd. | 2 | |
| 17 | Jieshou City Tianhong Packaging Material | 2 | |
| 18 | Jiangyin Xinshun Plastic Products Co., Ltd. | 2 | |
| 19 | Anhui Jiayang New Materials Technology Co., Ltd. | 2 | |
| 20 | Anhui Lanfeng New Packaging Materials Co., Ltd. | 2 |
This flat structure typically indicates that proprietary barrier-layer formulations and laminate architectures remain contested, that freedom to operate is relatively broad outside the most-cited reference patents, and that mid-tier entrants from. China’s packaging materials sector are actively building defensive positions.
Filings from the most recent 18–24 months are subject to publication lag and are likely under-counted; recent-period totals should be treated as preliminary. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Filing volume has grown 37% in the recent window; layered laminates dominate the technology mix
The annual trend chart reveals sustained growth from 2017 through 2024, with the technology-composition chart showing that barrier-film innovation is overwhelmingly anchored in multilayer laminate structures, with secondary activity in packaging containers and polymer chemistry.
Annual filing trend
Filings rose from single digits in 2017 to a 2020 spike of 29 families, settled into the low-to-mid twenties through 2022–2023, and climbed again to 31 in 2024. The 2025–2026 figures are understated due to patent publication lag and should not be read as a slowdown.
↗ Hover for values · click a bar to ask EurekaTechnology composition
The B32B layered-products class accounts for the largest share of IPC assignments, reflecting the centrality of co-extrusion and laminate architecture to barrier performance. B65D (containers and packaging) ranks second, while polymer-chemistry classes C08L, C08J, and B29C represent smaller but meaningful secondary clusters, pointing to active work on resin formulations and processing routes.
↗ 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.
Transparent high-barrier film and high-barrier lay…
A transparent high-barrier film having flexibility and a high-barrier property is usable as a packaging material for pharmaceutical products, or as a flexible sealing material. The high-barrier film includes a plastic film and at least a barrier layer stacked thereon. The barrier layer is a layer in which two or more units are stacked, each unit having a… (excerpt from the patent abstract)
Open this patent in Eureka →| # | Patent | Citations |
|---|---|---|
| 1 | Sealable packaging structures and applications rel… | 63 |
| 2 | Package particularly for packaging food products | 60 |
| 3 | Sealable packaging structures and applications rel… | 30 |
| 4 | 多层共挤高阻隔膜及其制备方法 | 24 |
| 5 | 一种水性高阻隔涂布液及其高阻隔薄膜 | 20 |
| 6 | 一种涂覆型多层复合高阻隔薄膜、制备方法及其应用 | 13 |
| 7 | Multilayer abuse resistant high barrier packaging … | 13 |
| 8 | 一种易切断的尼龙EVOH高阻隔膜及其生产方法 | 12 |
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
The combination of growth-stage dynamics, low concentration, and. China-heavy filing activity creates distinct implications for material selection, entry timing, and geographic IP strategy.
Growth stage — annual filings still rising
The lifecycle evidence places the field firmly in Growth, with the 37% recent-window increase and no indication that annual volume has eased from its 2024 peak. For R&D planners this means core barrier-layer architectures are still being defined and that early filing in novel sub-routes can still establish priority positions before the field matures.
Growth stageFragmented top tier — no entrenched leader
With the top five filers holding only 17% of the hundred largest filers’ combined output, and the leader holding just 7 patent families, no applicant has yet built a blocking position. New entrants and mid-tier challengers face a relatively open landscape, though the most-cited reference patents (up to 63 forward citations) represent focal points that any entrant must design around.
Low concentrationTight co-filing cluster anchored by Qingdao Creek and Anhui Keruike
The most active co-filing relationships identified in evidence involve Qingdao Creek New Environmental Protection Material Group, inventor Zhai Chuanwei, inventor Li Zhuangxian, and Anhui Keruike Insulation Material, each pair sharing 4 jointly filed families. This cluster suggests a regionally coordinated R&D effort in insulation-grade barrier films rather than broad cross-industry collaboration.
Clustered collaborationChina dominates filing volume; Western offices are thinly covered
China is by far the leading filing jurisdiction. The United States, WIPO PCT, and Europe each show a fraction of that volume, meaning commercially significant barrier-film innovations developed in China may not yet carry enforceable protection in major Western markets. This creates both a freedom-to-operate opportunity for Western manufacturers and a risk that Chinese IP is not yet visible in Western patent searches.
China-dominantGo 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 |
|---|---|---|
| Qingdao Creek New Environmental Protection Material Group Co., Ltd. | Zhai Chuanwei | 4 |
| Qingdao Creek New Environmental Protection Material Group Co., Ltd. | Li Zhuangxian | 4 |
| Qingdao Creek New Environmental Protection Material Group Co., Ltd. | Anhui Keruike Insulation Material Co., Ltd. | 4 |
| Zhai Chuanwei | Li Zhuangxian | 4 |
| Zhai Chuanwei | Anhui Keruike Insulation Material Co., Ltd. | 4 |
Co-filing pairs, ranked by the number of jointly-filed patent families.
Flex Films and Alcan lead on laminate architectures; new Chinese entrants are rising fast
The top two ranked applicants each hold 7 patent families, with their technology focus differing meaningfully — Flex Films combines laminate and polymer-processing routes, while Alcan concentrates entirely on laminate and packaging structures.
Flex Films USA Inc
Flex Films USA Inc holds 7 patent families and shows the broadest technical scope among the leaders, with filings spanning B32B layered laminates, C08J polymer processing and surface treatment, and B32B metal-layer laminates. This breadth suggests a strategy of protecting both the film architecture and the coating/surface-treatment process steps. Momentum data does not flag a recent step-change, indicating a steady, established filing cadence.
families: 7Zhongsu New Materials Technology (Hangzhou)
This Chinese specialty-materials firm also holds 7 patent families and is flagged as a new entrant with an upward momentum trend, meaning its entire portfolio has been filed in the recent period. Its focus is concentrated in B32B multilayer and laminate subclasses, including surface-textured and bonded-layer variants, positioning it as a fast-moving challenger building a focused barrier-laminate portfolio from a standing start.
families: 7| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| Zhongsu New Materials Technology (Hangzhou) Co., Ltd. | 1 | ▲ new entrant |
| Guangdong Wanshun Technology Co., Ltd. | 4 | ▲ new entrant |
| Lucky Huaguang Graphics Co., Ltd. | 3 | ▲ new entrant |
Under-served branches adjacent to the laminate core
Several IPC classes adjacent to the dominant B32B laminate core show relatively sparse coverage in the current corpus, representing areas where incremental filing activity could establish early positions.
C09D · Coatings, paints & inks for barrier applications
The C09D coatings class has only 26 patent-record assignments in this corpus — roughly 5% of the IPC distribution — despite coating chemistry being a primary route to achieving oxygen and moisture barrier performance in flexible films. The technical value is direct: high-performance inorganic and hybrid organic-inorganic coatings (e.g., alumina, silica, PVDC alternatives) are actively sought by brand owners facing sustainability pressure to replace foil laminates. The sparse filing count suggests this sub-route is under-protected relative to its commercial relevance, and an entrant with proprietary aqueous or UV-cure barrier coating formulations could establish a differentiated position.
Search this in Eureka →C23C · Thin-film deposition and surface coating for barrier layers
C23C (coating and surface deposition, including CVD and PVD routes) holds only 18 patent-record assignments, placing it among the sparser branches despite the growing commercial relevance of atomic-layer deposition and plasma-enhanced CVD for ultra-thin inorganic barrier layers on polymer substrates. Entry complexity is higher here — ALD and PECVD processes require capital-intensive equipment — but this also limits the number of credible competitors, and the technical differentiation relative to conventional laminate approaches is substantial for applications in OLED packaging and medical device pouches.
Search this in Eureka →How leaders differ by technology route
Route coverage across the main technology branches in the current evidence set.
| Player | B32B 27 · Layered products & laminates | B32B 7 · Layered products & laminates | B65D 65 · Containers & packaging | B32B 33 · Layered products & laminates | B32B 37 · Layered products & laminates |
|---|---|---|---|---|---|
| Zhongsu New Materials Technology (Hangzhou) Co., Ltd. | Strong · 7 | Strong · 4 | Absent | Strong · 5 | Absent |
| Alcan Packaging Italia SRL | Strong · 7 | Absent | Strong · 7 | Absent | Absent |
| Shandong Yongju Medical Technology Co., Ltd. | Strong · 5 | Absent | Absent | Absent | Strong · 3 |
| Cryovac Inc | Strong · 4 | Absent | Absent | Absent | Strong · 4 |
| National Institute of Clean and Low Carbon Energy (NICE) | Absent | Strong · 3 | Strong · 3 | Strong · 2 | Absent |
| Henry G. Schirmer | Absent | Strong · 2 | Strong · 2 | Strong · 2 | Strong · 2 |
Frequently asked questions
The corpus contains 165 patent families in scope. This total is the baseline for concentration and trend analysis; individual applicant rankings and IPC class counts are derived from this set.
Flex Films USA Inc and Alcan Packaging Italia SRL are tied at the top of the ranking, each holding 7 patent families. Zhongsu New Materials Technology (Hangzhou) Co., Ltd. also holds 7 patent families and is identified as a new entrant with upward filing momentum.
B32B (layered products and laminates) is by far the dominant IPC class in the corpus, reflecting the centrality of co-extruded multilayer structures to barrier-film performance. B65D (containers and packaging) ranks second, and polymer-chemistry classes C08L and C08J follow.
The lifecycle evidence classifies the field as Growth, with a 37% increase in the recent filing window and no sign that annual volume has eased from its 2024 peak. Figures from the most recent 18–24 months are subject to publication lag and are likely under-counted, so the apparent plateau in 2025–2026 data should not be interpreted as a slowdown.
China is the leading filing jurisdiction by a wide margin. The United States, WIPO PCT, and the European Patent Office each account for a much smaller share of filings. This concentration means that innovations developed and filed in China may not yet carry enforceable rights in major Western markets.
The most active co-filing cluster identified in the evidence involves Qingdao Creek New Environmental Protection Material Group, individual inventors Zhai Chuanwei and Li Zhuangxian, and Anhui Keruike Insulation Material Co., Ltd. Each pair within this cluster shares 4 jointly filed patent families, suggesting a coordinated regional R&D effort in insulation-grade barrier films.
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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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