Paper-Based Barrier Coating Patents: Leaders & Filing Trends 2026
A data-backed view of paper-based barrier coating patents: who leads filings, how the technology splits across IPC classes, and where filing activity is heading through 2026.
Filing growth = 2021 (17 records) → 2024 (23); 2024 is the last year we treat as complete. Top-5 share = the 5 largest assignees ÷ all 199 records in scope (CR5), not the ranked leaders only.
What paper-based barrier coating patents actually cover
Paper-based barrier coating patents describe how paper or paperboard is treated, laminated or coated to block oxygen, moisture or grease while remaining recyclable or compostable — an alternative to plastic-laminated packaging. The 199 records in scope span containers and packaging structures (B65D), layered laminates (B32B), pulp and paper compositions (D21H), and the coating chemistries themselves (C09D), which means most of the claim activity sits in how the barrier layer is built into a package rather than in the coating formulation alone.
The dataset covers filings from 2015 through the 2026 cut-off, with the receiving-office split showing the United States, Europe and the WIPO/PCT route as the three heaviest filing destinations, followed by China, Canada and Japan.
Filing trend and technology composition
Two views of the same 199 records: how filing activity has moved year over year, and how that activity distributes across the IPC classes that define the technology.
Filing trend, 2017–2026
Annual filings rose from 1 in 2017 to a peak of 37 in 2023, with 2021-to-2024 filings up 35% (17 to 23 records) — the last span the data can treat as complete, since publication typically lags filing by around 18 months and 2025-2026 figures will still fill in.
Publication lags filing by roughly 18 months, so 2025 onwards are still filling in. Growth rates on this page therefore end at 2024; running them to the last bar would understate the field.
Technology composition by IPC subclass
Records can carry more than one IPC class, so shares sum to more than 100% of the 199 records in scope. B65D (containers & packaging) and B32B (layered products & laminates) each cover roughly half or more of records, D21H (pulp & paper compositions) accounts for a fifth, and the coating-specific classes C09D and C08L/C08F sit in the single digits — evidence that claim activity concentrates on package structure and lamination rather than coating chemistry per se.
Shares are the percentage of the 199 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Paper-Based Barrier Coating Patent Landscape with Eureka
This page is one run against one query. Ask Eureka your own question about paper-based barrier coating patent landscape and every answer comes back with the patent numbers behind it.
Try EurekaThe most-cited and most representative filings
KR1020150122294A — Nuts packaging methods
Filed by an individual inventor in 2015, this record describes a method for packing nuts using a high-barrier film specified at an oxygen permeability of 1-5 cc/m^2/24hr under stated test conditions, formed into a four-sided wrapping-paper shape of uniform thickness, combined with a pouch-type deoxidizer dosed at 150-500 cc per packing container to prevent acidification and preserve flavour.Its narrow, numerically bounded claim (specific permeability range, specific deoxidizer dose) makes it a useful contrast against the broader laminate-structure claims that dominate the highest-cited records.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20070184220A1 | Biodegradable paper-based laminate with oxygen and moisture barrier properties and method for making biodegra… | 94 |
| 2 | EP2777934A1 | Barrier paper packaging material | 58 |
| 3 | JP2005178829A | PTP lid, and PTP package using the same | 36 |
| 4 | US11242195B2 | Capsule for preparing a beverage such as coffee and the like | 24 |
| 5 | WO2015059022A1 | Capsule for preparing a beverage such as coffee and the like | 24 |
| 6 | US20110210164A1 | Packaging Materials With Enhanced Thermal-Insulating Performance | 23 |
| 7 | US20160251149A1 | Capsule for preparing a beverage such as coffee and the like | 22 |
| 8 | US20170174417A1 | Capsule For Preparing A Beverage Such As Coffee And The Like | 20 |
| 9 | US8637126B2 | Biodegradable paper-based laminate with oxygen and moisture barrier properties and method for making biodegra… | 18 |
| 10 | WO2015000775A1 | Capsule for preparing a beverage such as coffee and the like | 16 |
Citation counts favour older filings that have had more time to accumulate citations inside the searched corpus; they signal influence on later filings, not current commercial importance.
Each row carries its publication number; clicking a row searches Eureka by that number.
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Browse MCP servers →What the concentration and composition mean for a filing strategy
Four read-throughs from the ranking, the trend line and the IPC split that matter more than the raw counts on their own.
The top of the field is narrow
Five assignees hold 114 of the 199 records in scope. That is a small enough group that freedom-to-operate work should start with their portfolios by name rather than a broad novelty search.
Filing activity is still building, not plateauing
The three-year span from 2021 to 2024 — the most recent period the data can call complete — shows growth rather than a slowdown. Years after 2024 will read lower simply because publication has not caught up with filing yet.
Package structure is claimed far more than coating chemistry
B65D (containers & packaging) touches two-thirds of records while the dedicated coatings class C09D touches under a tenth. Claims are being built around how the barrier is integrated into the package, not primarily around the coating formulation.
Filing is concentrated in three jurisdictions
The United States, Europe and the WIPO/PCT route together account for the bulk of receiving-office activity, ahead of China, Canada and Japan. A regional strategy should weight these three routes first.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to paper-based barrier coating patent landscape, with the prior art for and against each one.
Where to take this analysis next
The dataset points to a narrow leadership group and a package-structure-heavy claim map. These are the follow-on questions worth running before committing a filing strategy.
Map the top assignees' full portfolios
The five leading assignees hold well over half of all records — pull their complete filing histories, not just this dataset's subset, before drafting around their claims.
Explore assignee portfolios in EurekaStress-test a white-space claim
Coating chemistry classes (C09D, C08L, C08F) are lightly claimed relative to package-structure classes. Draft a candidate claim there and check it against prior art directly.
Run a claim check in EurekaWatch the 2025-2026 filing window
Recent years will keep rising as publication catches up with filing. Set an alert rather than concluding growth has slowed.
Set a filing alert in EurekaCommon questions about paper-based barrier coating patents
The ranked leaders in this 65-company dataset are concentrated at the top: the top five combined hold 57.3% of all 199 records in scope, and the top ten hold 74.4%. This means a small group of assignees controls most of the claim space, so competitive tracking and freedom-to-operate analysis should prioritise their specific portfolios rather than treating the field as fragmented. Beyond the top ten, filing activity thins into a long tail of single- or few-filing entrants.
Yes, over the most recent period the data can treat as complete: filings rose 35% from 17 records in 2021 to 23 in 2024. The peak year recorded so far is 2023, with 37 filings. Figures for 2025 and 2026 will look lower in the raw data, but that reflects the roughly 18-month lag between filing and publication rather than an actual drop in activity.
Most records fall under IPC classes for containers and packaging (B65D, 66.3% of the 199 records) and layered laminates (B32B, 50.8%), meaning claims most often cover how a barrier layer is structured into a package. Pulp and paper composition claims (D21H) cover 20.6% of records, while coating-chemistry-specific classes such as C09D, C08L and C08F each sit under 10%. Because a single record can carry multiple IPC classes, these shares add up to more than 100% of the record total.
The IPC composition suggests coating chemistry itself is comparatively under-claimed relative to package structure: C09D covers only 7.5% of the 199 records, and C08F and C08L each cover just 4.0%, against B65D's 66.3%. That gap does not guarantee an easy filing, but it does mean formulation-level claims face a thinner prior-art base than structural packaging claims do. Any candidate claim in that space should still be checked directly against the highest-cited records before drafting.
KR1020150122294A claims a specific method for packing nuts using a high-barrier film with oxygen permeability bounded to 1-5 cc/m^2/24hr under stated test conditions, shaped into a four-sided wrapping-paper form, combined with a deoxidizer pouch dosed at 150-500 cc per container. Its scope is narrow because it is bounded by specific numeric ranges and a specific product application (nuts), rather than claiming barrier-coated paper packaging broadly. A related filing that uses a different permeability range, a different packaging geometry, or a different food product would likely sit outside its claims, though a full freedom-to-operate check should confirm that against the exact claim language.
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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.