Paper-Based Packaging Compostable Packaging Patents: Who Leads 2026
- One filer family dominates the corpus. co-assignee pairs point to a single corporate group filing under three related entity names, with the strongest pair linked across 12 records.
- Filing has already peaked. activity rose to 29 records in 2022 and has since flattened, with the most recent year showing no output yet on record.
- Claims cluster on one product form. the most-cited records are all variations of a single package design for water-soluble capsules, not broad paperboard or fiber-packaging structures.
What this dataset covers
This landscape draws on 41 published patent families filed against paper-based, paperboard and fiber-based packaging that carry compostable or biodegradable coating claims. The search pairs container and packaging terminology with compostable-paper and biodegradable-paperboard language, which pulls in a corpus concentrated on consumer unit-dose packaging rather than shipping or food-service formats.
Coverage runs from 2015 through the mid-2026 data cut-off. Because publication typically lags filing by around 18 months, the last one to two years in any trend will read lower than actual filing activity once those applications publish.
Filing trend and technology mix
The record count is small enough that individual assignees move the trend line, and the technology composition is narrow rather than broad.
Filings rose, then flattened
Filings were at zero in 2017, climbed to a peak of 29 records in 2022, and the 2022 midpoint value against that peak signals a flat-to-declining trajectory rather than sustained growth. The most recent year is partial and should not be read as a drop-off.
Two subclasses carry almost the whole corpus
B65D (containers and packaging) appears in all 41 records, and C11D (detergents and cleaning compositions) appears in 39 of them. That pairing confirms the corpus is really about packaging built to hold detergent-type unit-dose products, not general paperboard or fiber packaging construction.
Shares are the percentage of the 41 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Paper-Based Packaging Compostable Packaging with Eureka
This page is one run against one query. Ask Eureka your own question about paper-based packaging compostable packaging and every answer comes back with the patent numbers behind it.
Try EurekaMost-cited records
Package containing water-soluble capsules (US20240279577A1)
A package comprising at least one layer of biodegradable material and containing a plurality of unit dose products, at least one unit dose product comprising a detergent composition comprising sequestrant within a sealed compartment formed by a water soluble film, said package comprising a child-resistant closure mechanism.Filed by Conopco, Inc., d/b/a Unilever; published 2024-08-22.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | WO2022238179A1 | Package containing water-soluble capsules | 4 |
| 2 | US20240286813A1 | Package containing water-soluble capsules | 4 |
| 3 | US20220089342A1 | Package containing water-soluble capsules | 4 |
| 4 | WO2022238495A1 | Package containing water-soluble capsules | 3 |
| 5 | WO2022238440A1 | Package containing water-soluble capsules | 3 |
| 6 | WO2022238442A1 | Package containing water-soluble capsules | 3 |
| 7 | WO2022238053A1 | Package containing water-soluble capsules | 3 |
All five most-cited records describe the same underlying concept — a package for water-soluble capsules — filed as related family members and near-duplicate applications across jurisdictions.
Publication numbers are shown where the record carries one (7 of 7 rows); clicking a row searches Eureka by that number.
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Three patterns matter more than the raw counts: who is filing together, how concentrated the claim language is, and where the geographic footprint stops.
One corporate group files under multiple entity names
The strongest co-assignee link connects two related Unilever IP-holding entities across 12 records, with a third related entity linked to each at 5 records. Read as a single applicant, this group accounts for the great majority of the corpus.
Recent filing has gone quiet across every named assignee
All three top assignees show zero filings in the latest tracked year, with the lead assignee down 100% year-on-year. Given publication lag, this likely reflects unpublished pending applications rather than an actual halt in R&D.
Filing footprint is US- and Europe-led with thin secondary coverage
The United States and the European Patent Office lead as receiving offices, followed closely by Australia, South Africa, the United Kingdom and PCT filings in a tight band of 5-6 each. No single secondary market stands out as a distinct enforcement priority.
Claims are anchored to detergent unit-dose formats, not packaging generally
With 39 of 41 records also classified under C11D, the compostable-paper claim language in this corpus is written around holding and dispensing detergent capsules specifically, leaving broader paperboard and fiber-packaging structures comparatively unclaimed here.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to paper-based packaging compostable packaging, with the prior art for and against each one.
Who is filing, and where the gaps sit
The applicant base is narrow and closely related; the open ground sits outside the detergent-capsule use case this corpus is built around.
A single Unilever-linked group anchors the corpus
Three related entity names — two Unilever IP-holding companies and Conopco, Inc. (d/b/a Unilever) — appear together across the strongest co-assignee pairs in the dataset, indicating one applicant strategy split across group entities rather than three independent competitors.
No assignee shows fresh publication in the most recent year
Given the roughly 18-month publication lag, this flat reading is expected for a mid-2026 cut-off and should not be taken as the group exiting the space.
The applicant base outside the lead group is thin
With only 41 families total and one group dominating the strongest links, there is limited evidence of a competitive second tier actively building a comparable portfolio in this specific paper/compostable-plus-detergent-packaging niche.
| Assignee | Recent year | YoY |
|---|---|---|
| Unilever Global IP Limited | 0 | -100% |
| CONOPCO INC | 0 | — |
| Unilever Intellectual Property Holdings Limited | 0 | — |
Where to take this analysis
The corpus is small enough that a focused claim-by-claim read is practical before committing a filing strategy.
Map the child-resistant closure claims
The representative filing pairs a biodegradable-material layer with a child-resistant closure mechanism. Confirm whether closure-mechanism claims are separable from the biodegradable-layer claims, since a design-around may only need to change one element.
Explore claims in EurekaCheck pending applications for the lead group
Zero latest-year output across the top three assignees is consistent with publication lag rather than an actual stop. Pull priority-date filings directly to see what is in the pipeline before assuming the group has slowed.
Run a priority-date searchTest the white-space branches against full-text claims
The gate chips above are inferred from the technology composition gap, not from a dedicated search. Confirm with a targeted claims search before relying on them as open ground.
Search white space in EurekaCommon questions on this landscape
Within this corpus, a single corporate group linked to Unilever holds the strongest position, filing under three related entity names including Conopco, Inc. and two Unilever IP-holding companies. Their co-assignee links account for the densest connections in the dataset, at up to 12 shared records between two of the entities. No other assignee approaches that level of concentration in this specific search, though the total corpus of 41 families is modest, so this should not be read as a comprehensive picture of the whole compostable-packaging field.
Filing activity peaked at 29 records in 2022 and has flattened or declined since, based on published records through the mid-2026 data cut-off. Because patent publication lags filing by roughly 18 months, the most recent one to two years will understate real filing activity, so the apparent slowdown may partly reflect unpublished applications rather than reduced R&D. A clearer read will be available once 2024-2025 priority filings finish publishing.
This Conopco (Unilever) filing claims a package with at least one biodegradable-material layer holding multiple unit-dose detergent products, each sealed in a water-soluble film compartment, combined with a child-resistant closure mechanism. It is narrowly scoped to detergent unit-dose packaging rather than compostable paper packaging broadly. Anyone designing a competing unit-dose package should check whether their design uses a different closure mechanism or layer structure to avoid overlap with this specific claim combination.
The technology composition shows 39 of 41 records tagged to detergent-related classification alongside packaging, meaning claim density is concentrated on detergent-capsule packaging rather than compostable paperboard or fiber packaging generally. Branches like home-compostable barrier coatings for food-contact paperboard, or biodegradable paperboard for non-detergent unit-dose formats, show comparatively little claim activity in this dataset. That gap is inferred from the classification mix and should be confirmed with a dedicated claims search before relying on it.
The United States and the European Patent Office lead as receiving offices, with 8 and 7 records respectively, followed closely by Australia, South Africa, the United Kingdom and PCT filings, each in the 5-6 range. The spread is tight rather than dominated by one jurisdiction, which means a filing strategy anchored only on the US or EPO would miss meaningful coverage in Australia and South Africa seen in this corpus.
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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.