Mono-Material Recyclable Flexible Packaging Patents: Leaders & Trends 2026
- One filer holds 33 of 70 records, and the top 5 assignees combined account for 85.7% of all records in scope — this is a concentrated field, not a fragmented one.
- Filing peaked in 2020 at 26 records, then fell back toward the 2022 midpoint of 9, suggesting the core laminate claim space was staked out early rather than being an active land grab today.
- B32B laminate claims cover 78.6% of records, while polymer-composition filings under C08L sit at just 10.0% — barrier chemistry inside the mono-material layer is comparatively under-claimed.
What this landscape covers
Mono-material recyclable flexible packaging replaces multi-polymer laminates with a single resin family so the finished pouch or wrapper can pass through existing polyolefin recycling streams. The patent activity here concentrates on two problems: how to build a laminate that keeps oxygen and moisture barrier performance without a foil or EVOH layer that would contaminate the recyclate, and how to keep the resulting structure machinable on existing form-fill-seal lines. The dataset spans 70 published records from 2015 through the 2026 cut-off, drawing on search terms tied to barrier performance, heat-resistance windows, machinability and recyclate compatibility rather than packaging structure alone.
Because publication lags filing by roughly 18 months, the most recent year in the trend line is always an undercount — a 2026 figure of 1 record reflects filings still working through the pipeline, not a sudden stop in activity.
Filing trend and technology composition
Two views of the same 70 records: when they were filed, and which IPC subclasses they touch. Both use the full record set as the denominator, so class shares add to more than 100% because a single laminate patent commonly carries several classifications at once.
A peak year, then a pullback
Filings rose from zero in 2017 to a peak of 26 in 2020, then eased toward 9 at the 2022 midpoint. Read this as the core mono-material laminate claim space filling in quickly around 2019-2020 rather than as a technology going out of favour — the underlying recycling-stream mandates that drove the surge have not reversed.
Laminates and containers dominate; polymer chemistry lags
B32B (layered products) and B65D (containers & packaging) together cover most of the record set at 78.6% and 61.4% respectively, confirming that most filed claims are structural — how layers are arranged and sealed. C08L (polymer compositions) at 10.0% and C08F (addition polymers) at 5.7% are comparatively thin, which is where barrier-material chemistry inside a single-resin system remains less crowded.
Shares are the percentage of the 70 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Mono-Material Recyclable Flexible Packaging with Eureka
This page is one run against one query. Ask Eureka your own question about mono-material recyclable flexible packaging and every answer comes back with the patent numbers behind it.
Try EurekaThe most-cited records in this space
EB Curing and In-Situ Crosslinking for Recyclable Flexible Packaging
A recyclable flexible package for foods, non-foods, pharmaceuticals and other products is formed using electron-beam cured inks and EB laminates, reducing the number of production steps needed to build a recyclable structure compared with conventional solvent-based lamination.US20220001660A1, Energy Sciences, Inc., filed 2022-01-06.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | DE4109983A1 | Biodegradable, recyclable flexible packaging container – comprises paper sack or bag with coating or sheet of… | 22 |
| 2 | JP2021160262A | Laminate and packaging container | 21 |
| 3 | JP2022007964A | Laminate, and pouch for retort or boiling | 20 |
| 4 | JP2021160267A | Laminate and packaging container | 13 |
| 5 | JP2021160258A | Laminate and packaging container | 12 |
| 6 | JP2021160255A | Substrate, vapor-deposited substrate, laminate and packaging container | 12 |
| 7 | WO2021011213A1 | Electron beam (EB) curing of INKS and in-SITU crosslinking of substrates to provide sustainable and recyclabl… | 11 |
| 8 | JP2022007962A | Laminate, and pouch for retort or boiling | 10 |
| 9 | WO2020007711A1 | Thermally laminated polyethylene-based "monomaterial" laminate for recyclable flexible packaging | 8 |
| 10 | US20220001660A1 | Electron Beam (EB) Curing of Inks and In-Situ Crosslinking of Substrates to Provide Sustainable and Recyclabl… | 7 |
Citation counts reflect influence within the searched corpus and skew toward older filings; treat them as a marker of foundational status, not current relevance.
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Browse MCP servers →What the numbers mean for a filing decision
The concentration and technology-class data point to a field where structural claims are largely staked out and chemistry claims are comparatively open.
A small group holds most of the structural claim space
With the leader alone at 33 records and the top 5 combined covering 85.7% of the 70 records in scope, new entrants working on laminate structure and pouch geometry are filing into dense prior art held by a handful of firms.
The surge has passed its peak
Activity climbed from zero in 2017 to 26 filings in 2020, then declined toward the 2022 midpoint of 9. That pattern is consistent with an early rush to claim core mono-material laminate designs, not with an exhausted technology.
Barrier chemistry is thinner than laminate structure
B32B laminate claims cover 78.6% of records versus 10.0% for C08L polymer-composition claims. Barrier-layer material science within a single-resin system carries meaningfully less filed prior art than the structural laminate designs built around it.
Filing activity is centred on Japan
Japan accounts for the largest share of receiving-office filings at 35, ahead of the United States at 9, WIPO/PCT at 8 and EPO at 6 — a strong signal that the most active prosecution and the deepest prior art sit in the Japanese Patent Office record.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to mono-material recyclable flexible packaging, with the prior art for and against each one.
Who holds the claims, and where the gate still stands open
Twelve companies make up the entire ranked list for this dataset. One assignee holds roughly half the field on its own, with a steep drop after that.
One assignee dominates the ranking
The top-ranked assignee holds 33 of the 70 records in scope, nearly half the entire dataset on its own, concentrated in laminate and container structure claims.
A sharp drop after the leader
Filing volume falls away quickly after the leader: fifth place holds just 2 records, and the tenth-ranked assignee holds 1. This is a field with one dominant filer and a long tail rather than several closely matched competitors.
Recent-year activity has cooled across the board
Multiple ranked assignees show zero filings in the latest year with year-on-year declines of -100%, and even the most active recent filer is down 67% YoY. Given the 18-month publication lag, this understates true 2025-2026 activity but still points to a slower filing pace than 2020.
| Assignee | Recent year | YoY |
|---|---|---|
| Energy Sciences, Inc. | 1 | -67% |
| Dai Nippon Printing Co., Ltd. | 0 | -100% |
| Neenah, Inc. | 0 | — |
| NOVA Chemicals (International) S.A. | 0 | -100% |
| Printpack Illinois, Inc. | 0 | — |
| Toppan Holdings Inc. | 0 | — |
| IND TERMOPLASTICA PAVESE SPA | 0 | — |
| EPAC HLDG LLC | 0 | — |
Where to take this analysis
The record set points to a structurally crowded field with thinner coverage in barrier chemistry and printing processes. The next steps depend on whether you are clearing a design or scouting a filing gap.
Run a freedom-to-operate check against the top assignees
With 85.7% of records held by five companies, any new laminate structure should be checked claim-by-claim against that group before development spend increases.
Explore assignee claims in EurekaMap the barrier-chemistry white space in detail
C08L and C08F filings sit well below the B32B/B65D structural volume, suggesting room for material-composition claims inside a single-resin barrier layer.
Search IPC subclasses in EurekaTrack filings into the Japanese Patent Office
Japan holds the largest share of receiving-office filings in this set at 35, making it the office where new prior art in this space is most likely to surface first.
Set up office-level alerts in EurekaCommon questions about this landscape
One assignee leads the ranked list with 33 of the 70 records in scope, and together with four others accounts for 85.7% of all records. The ranking covers 12 companies in total, so this is a field with one dominant filer and a long tail of smaller participants rather than a broadly distributed one. Anyone entering this space should expect the bulk of relevant prior art to sit with that leading filer and the four just behind it.
Filing activity peaked in 2020 at 26 records and had eased back to 9 by the 2022 midpoint, so the raw trend line shows a pullback rather than continued growth. Because publication typically lags filing by around 18 months, the very latest years in the dataset understate real activity and should not be read as a hard stop. The pattern is more consistent with an early rush to establish core laminate designs than with the technology losing relevance.
The two dominant IPC subclasses are B32B, layered products and laminates, at 78.6% of the 70 records, and B65D, containers and packaging, at 61.4%. Polymer-composition claims under C08L appear in only 10.0% of records, and printing-process claims under B41M in 8.6%. Since a single patent can carry multiple classifications, these figures add to more than 100% and should be read as coverage shares, not a partition of the dataset.
The structural side of this field, laminate architecture and container design, is comparatively crowded, covered by B32B and B65D classifications in most of the dataset. Barrier-layer polymer chemistry under C08L and C08F sits well below that at 10.0% and 5.7% of records, indicating less filed prior art around the material composition that gives a mono-material film its oxygen and moisture barrier. Machinability and printing-process claims, at 7.1% and 8.6% respectively, are similarly thinner than the structural categories.
US20220001660A1, filed by Energy Sciences, Inc. in January 2022, covers electron-beam curing of inks and in-situ crosslinking of substrates as a way to build recyclable flexible packaging with fewer production steps than conventional solvent-based lamination. It is specific to the EB-curing process route rather than to mono-material laminate structure generally, so it constrains EB-based ink-curing methods without necessarily blocking other lamination or barrier-coating approaches. Anyone evaluating EB-cured or in-situ-crosslinked processes for recyclable packaging should review this filing's claim scope directly rather than relying on the abstract alone.
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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.
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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.