High-Barrier Film Compostable Packaging Patents: Leaders & Gaps 2026
- Filing has plateaued, not grown. Activity peaked at 12 families in 2023 after climbing from zero in 2017; the 2022 midpoint of 7 shows the curve flattening rather than accelerating into that peak.
- Ownership is dispersed, not concentrated. Across 88 families, only three co-assignee pairs exist and every tracked assignee shows zero filings in the latest year — a field of largely independent, single-filing entrants rather than a contested core.
- Claims cluster in laminate structure, not chemistry. B32B layered-product claims appear in 72 of 88 records, well ahead of B65D containers (32) and C08L polymer compositions (17) — the barrier stack itself is the most-claimed asset.
Filing growth compares 2021 (4 records) with 2024 (6) — 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. Top-5 share is the combined record count of the five largest assignees divided by all 88 records in scope (CR5), not by the ranked leaders only.
What this landscape covers
This dataset tracks 88 patent families published between 2015 and mid-2026 that combine barrier-film claims with compostable or bio-based material limitations, drawn from filings tagged with layered-product, container, and polymer-composition classifications. The search string pairs barrier-film terminology in the title with compostable-material terms in the title or claims, so the corpus centres on documents that explicitly claim a barrier function alongside a compostability or bio-based property — not general compostable packaging or general barrier films treated separately.
Because publication typically lags filing by around 18 months, the most recent filing years understate true activity; treat 2025 and 2026 counts as provisional floors rather than finished totals.
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Filing trend and technology composition
Two views of the same 88-family corpus: how filing volume has moved year over year, and which classification codes carry the claim weight.
A rise-then-plateau filing curve
Filings moved from zero in 2017 to a peak of 12 in 2023, with the 2022 midpoint at 7 — a curve that grew for roughly five years and has since flattened, not one still accelerating.
Laminate structure dominates the classification mix
B32B (layered products) appears in 72 of 88 records and B65D (containers) in 32, well ahead of the polymer-chemistry codes C08L, C08K and C08J (17, 16 and 14 respectively) — claim activity concentrates on how barrier layers are stacked and packaged, not on the underlying resin chemistry.
Shares are the percentage of the 88 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 Compostable Packaging with Eureka
This page is one run against one query. Ask Eureka your own question about high-barrier film compostable packaging and every answer comes back with the patent numbers behind it.
Try EurekaThe most-cited prior art and a representative recent grant
US11117739B2 — Compostable multilayer membranes and cartridges using such membranes
A compostable multilayer membrane may include: a first barrier layer containing a compostable barrier film; a first metallization layer; an intermediate layer containing at least one adhesive; a second barrier layer containing a compostable barrier film; a layer adjacent to the first barrier layer, on a side opposite to the first metallization layer, the adjacent layer comprising heat-resistant lacquer; a second metallization layer between the intermediate layer and the second barrier layer; and a filter made of nonwoven fabric.Granted to GOGLIO S.P.A., 2021-09-14. The claim explicitly excludes cellulosic material from both compostable barrier layers, narrowing the scope of what it blocks.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | WO2006042364A1 | Barrier film | 100 |
| 2 | US20090110942A1 | Barrier film | 64 |
| 3 | US7854994B2 | Barrier film | 51 |
| 4 | US20120088108A1 | Barrier coating composition with organic particles | 29 |
| 5 | US10583029B2 | Biodegradable odor barrier film | 27 |
| 6 | US20110081543A1 | Biodegradable composite barrier film | 18 |
| 7 | WO2018203184A1 | A compostable multilayer membrane and cartridge using said membrane | 15 |
| 8 | US20200087056A1 | Compostable multilayer membranes and cartridges using such membranes | 15 |
| 9 | KR102148518B1 | Biodegradable barrier film comprising montmorillonite and food packaging manufactured by the same | 12 |
| 10 | KR1020120056023A | Biodegradable barrier film | 10 |
Citation counts favour older documents simply because they have had longer to accumulate citations inside this search; treat the ranking as a map of influence, not of current commercial relevance.
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 the field
Three patterns stand out once filing volume, classification mix and citation age are read together.
Growth already crested
The trend line moved from zero in 2017 to a peak of 12 families in 2023, with the 2022 midpoint sitting at 7. That shape — five years of buildup followed by a flattening — is more consistent with a niche reaching its natural filing ceiling than with a technology still in early expansion.
The barrier stack is the claimed asset
B32B layered-product claims dominate the corpus at 72 of 88 records, well ahead of B65D containers (32) and every polymer-chemistry code. Structure and lamination sequence, not resin formulation, is where applicants have concentrated their claim language.
Foundational art is old
The most-cited record in this corpus, WO2006042364A1, dates from well before the compostable-specific filing wave and carries 100 citations. Citation counts inside any searched corpus skew toward older documents simply because they have had more time to accumulate references.
A dispersed, largely solo field
Only three co-assignee pairs exist across the entire corpus, and every tracked assignee shows zero filings in the latest year. That points to independent, often single-filing entrants rather than a small set of firms building on each other's work.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to high-barrier film compostable packaging, with the prior art for and against each one.
Who is active, and where the claim space is still open
No assignee in this dataset shows positive filing momentum in the latest tracked year, which makes the ranking a record of past activity rather than a live race. The more useful question for a new entrant is where the classification data shows thin coverage.
Flat momentum across the board
Every assignee tracked for recent-year momentum, including McCormick (UK) Limited with one filing in the latest year, shows 0% year-over-year growth or no filings at all. This is a field without a currently accelerating leader.
Filing concentrates in two jurisdictions
The United States (19 records) and the European Patent Office (17) receive more than double the filings of the next tier — Australia, Canada and South Korea each sit at 8–9. Jurisdictional strategy in this field is still narrow.
Almost no joint filing
Plantic Technologies Limited appears in all three recorded co-assignee pairs, each with a different named inventor-assignee. Beyond that single company's pattern, the corpus shows no evidence of cross-company collaboration.
| Assignee | Recent year | YoY |
|---|---|---|
| McCormick (UK) Limited | 1 | 0% |
| Hollister Incorporated | 0 | — |
| Toray Plastics (America), Inc. | 0 | — |
| Goglio S.p.A. | 0 | — |
| SK Micro-Wave Co., Ltd. | 0 | — |
| Plantic Technologies Limited | 0 | — |
| KANUMURU SATYANARAYANA RAJU | 0 | — |
| TORAPHENE LTD | 0 | — |
Where to take this analysis
The dataset points to specific next steps depending on whether the goal is freedom-to-operate, portfolio building, or competitive tracking.
Check freedom-to-operate against the top-cited art
WO2006042364A1 and the other most-cited records predate the compostable-specific filing wave and remain the densest prior art to clear before filing new laminate-structure claims.
Run a freedom-to-operate checkProbe the under-claimed classification branches
Bio-based coating processes and additive chemistry carry far fewer records than layered-product structure, suggesting narrower prior art to design around in those branches.
Explore white space with EurekaTrack jurisdictional filing as the field matures
With filings concentrated in the US and EPO and a flattening overall trend, watch for a second wave of filings in Asian offices as compostable-packaging regulation spreads.
Monitor filing activityCommon questions about this landscape
This dataset identifies 88 patent families published between 2015 and mid-2026 that combine barrier-film claims with compostable or bio-based material limitations. The count is based on a search string pairing barrier-film terminology with compostable-material terms across relevant layered-product, container, and polymer classifications. Because publication lags filing by roughly 18 months, the true number of filings in the most recent one to two years is understated in any snapshot taken today.
No single company dominates this corpus: filing momentum is flat across every tracked assignee in the latest year, and only three co-assignee pairs appear across all 88 families. GOGLIO S.P.A. holds a notable recent grant (US11117739B2) on compostable multilayer membranes, but the broader picture is one of dispersed, largely independent filers rather than a concentrated set of leaders. Anyone doing competitive tracking should expect a long tail rather than a dominant incumbent.
A standard high-barrier film is engineered primarily for oxygen and moisture resistance, often using non-degradable polymers or metallized layers. A compostable barrier film adds a material constraint — the layer must break down under composting conditions — which typically restricts the polymer chemistry and coating options available. In this dataset, claims addressing that combination concentrate heavily on layered-product structure (B32B) rather than on the underlying resin chemistry, suggesting that achieving both properties simultaneously is still primarily solved through layer architecture.
B32B (layered products and laminates) is by far the most heavily claimed classification, appearing in 72 of 88 records, followed by B65D (containers and packaging) at 32. Polymer-chemistry classifications — C08L, C08K and C08J — each appear in well under 20 records, indicating comparatively less claim density in formulation-level chemistry. A search focused only on chemistry codes would miss most of the relevant prior art in this field.
The classification data shows the heaviest claim density sits in layered-product structure and container design, while bio-based coating processes, polymer additive formulations, and sterilisation-compatible barrier layers each carry noticeably fewer records. That does not guarantee those branches are unclaimed, but it does indicate thinner prior art to search and design around. A practical next step is running a targeted classification-level search on those specific branches before committing to a filing strategy.
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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.