Biodegradable Packaging Patents: Who Leads, Filing Trends 2026
- Filing peaked in 2019 at 35 families, then flattened — 2022's midpoint of 24 sits below peak, and momentum among the largest assignees has dropped to zero in the latest full year.
- China leads receiving offices with 77 filings, ahead of India (51), Europe (48) and the US (41) — the claim geography is shifting east faster than the underlying technology is maturing.
- B65D containers dominate at 262 records, but coating and ink formulations (C09D, 32 records) and pulp-based compositions (D21H, 62 records) remain comparatively open.
What this landscape covers
This dataset tracks 339 patent families filed against biodegradable and compostable packaging claims — spanning PLA and PHA resin formulations, composting-condition specifications, mechanical property claims and barrier-limitation language, filtered to packaging-relevant IPC classes including B65D (containers), C08L (polymer compositions) and C08J (polymer processing). Coverage runs from 2015 through the 2026-07-31 data cut-off.
Publication lags filing by roughly eighteen months, so the 2026 count of 8 understates actual filing activity for that year; treat the last one to two years of any trend line as a floor, not a ceiling.
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Filing trend and technology composition
The filing curve and the IPC composition together show a field that built claim density early and has not extended it — most of the recent activity concentrates around a small set of formulation and layering approaches.
A peak in 2019, then a plateau
Filings rose from 14 in 2017 to a peak of 35 in 2019, held near the 24-filing midpoint through 2022, and have not returned to peak levels since — consistent with a technology area where the obvious formulation claims were staked early.
Containers and polymer compositions carry the weight
B65D (containers and packaging, 262 records) and C08L (polymer compositions, 209 records) are the two largest classes by a wide margin; D21H (pulp and paper, 62), C08K (additives, 61) and C09D (coatings, 32) are comparatively thin, marking the sub-areas least occupied by prior claims.
Shares are the percentage of the 339 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Biodegradable and Compostable Packaging with Eureka
This page is one run against one query. Ask Eureka your own question about biodegradable and compostable packaging and every answer comes back with the patent numbers behind it.
Try EurekaThe records other filings cite most
Biodegradable packaging material with a security-layer function (CJ Cheiljedang)
The filing describes a packaging material with a PHA resin inner layer for biodegradability and thermal adhesiveness, laminated to a light-shielding layer on the reverse side. The stated application is a security pack for camera-equipped mobile devices, intended to prevent visual leakage of exhibits, equipment or documents in facilities requiring confidentiality.Filed by CJ Cheiljedang Corporation, published 2024-06-05 — illustrates how PHA-based barrier layers are being extended into non-food security applications rather than pure food packaging.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US5180765A | Biodegradable packaging thermoplastics from lactides | 256 |
| 2 | EP2218653A1 | Biodegradable packaging and method for its manufacture | 148 |
| 3 | US20090324917A1 | Biodegradable Packaging Film | 101 |
| 4 | US11247827B2 | Compostable or recyclable packaging wrap | 48 |
| 5 | WO2006117801A2 | Packaging materials | 47 |
| 6 | WO2012120199A1 | Heat sealable biodegradable packaging material, its manufacturing method and a product package made therefrom | 44 |
| 7 | WO2018067006A1 | Biodegradable and compostable food packaging unit from a moulded pulp material, and method for manufacturing … | 43 |
| 8 | WO2002028969A2 | Plastic products comprising biodegradable polyester blend compositions | 42 |
| 9 | WO2021145764A1 | Biodegradable packaging unit for a food product and method for manufacturing such packaging unit | 41 |
| 10 | WO2011110750A1 | Heat-sealable biodegradable packaging material, a method for its manufacture, and a product package made from… | 37 |
Citation counts reflect influence within this searched corpus and skew toward older filings; they are not a measure of current commercial relevance.
Each row carries its publication number; clicking a row searches Eureka by that number.
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Three patterns stand out once the trend line and IPC composition are read together: an early filing peak, a citation base built on decades-old core patents, and near-total stall in momentum among the most active assignees.
Growth has flattened, not accelerated
The peak year of 35 filings in 2019 has not been matched since; the 2022 midpoint of 24 sits below peak and the trend since has drifted down, even after accounting for publication lag.
Foundational lactide claims still anchor the field
The most-cited records — US5180765A, EP2218653A1, US20090324917A1 — date from well before the current filing window and establish the core PLA and film-based claim territory that later filings build around or design past.
The largest historical filers have gone quiet
Every assignee with meaningful filing history in this corpus — including Stora Enso, Huhtamaki, Kimberly-Clark, and P&G — shows zero filings in the most recent full year, one logging a full -100% year-on-year drop.
Receiving-office activity has shifted toward China and India
China (77) and India (51) each outpace the US (41) and EPO (48) in receiving-office counts, indicating that near-term enforcement and freedom-to-operate risk is increasingly concentrated in Asian jurisdictions.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to biodegradable and compostable packaging, with the prior art for and against each one.
Assignees and where they cluster
Co-assignee activity is thin — only 10 pairs recorded across the whole corpus — and the strongest pairings sit around a single research group rather than a corporate alliance, pointing to a fragmented rather than consolidated filing base.
Collaboration is sparse and researcher-centred
The strongest co-assignee links — Nevalainen Kimmo paired with Ribu Ville and with Penttinen Tapani, each appearing 3 times alongside Stora Enso — point to an academic or named-inventor cluster rather than a joint-venture structure.
Even fiber-based specialists have paused
Huhtamaki's molded fiber technology arm shows a full year-on-year drop to zero, alongside flat-to-zero latest-year counts from Kimberly-Clark, Procter & Gamble and Stora Enso — a pattern across packaging majors, not one company.
Enforcement risk is concentrating outside the US and EU
With China and India ahead of the US and EPO in filing counts, teams assessing freedom-to-operate for compostable packaging should prioritise clearance in those two jurisdictions alongside traditional US/EU searches.
| Assignee | Recent year | YoY |
|---|---|---|
| Stora Enso Oyj | 0 | — |
| Huhtamaki Molded Fiber Technology Ltd | 0 | -100% |
| Kimberly-Clark Worldwide, Inc. | 0 | — |
| Kiya Pte Ltd | 0 | — |
| The Procter & Gamble Company | 0 | — |
| Verico Corporation | 0 | — |
| Jiangnan University | 0 | — |
| NEVALAINEN KIMMO | 0 | — |
Where to take this analysis
The trend and assignee data point to specific next steps depending on whether the goal is freedom-to-operate, whitespace filing, or competitive tracking.
Run a freedom-to-operate check on the cited core patents
US5180765A, EP2218653A1 and US20090324917A1 anchor much of the PLA and film-based claim territory; any new formulation claim should be checked against these before drafting.
Explore prior art in EurekaMap claim scope in the thinner IPC classes
C09D coatings, D21H pulp compositions and C08K additive packages show markedly fewer filings than B65D and C08L — worth a targeted search before assuming the space is clear.
Search whitespace in EurekaTrack the quiet incumbents for re-entry signals
Stora Enso, Huhtamaki, Kimberly-Clark and P&G all show zero recent-year filings; a sudden resumption from any of them would be an early signal worth monitoring.
Set up assignee alerts in EurekaCommon questions on biodegradable packaging patents
The corpus shows a set of large packaging and consumer-goods companies with historical filing activity, including Stora Enso, Huhtamaki, Kimberly-Clark and Procter & Gamble, but all of them show zero filings in the most recent full year. This means the current leaderboard reflects accumulated historical filing rather than active present-day claiming. Anyone assessing 'who leads' today should weight recent-year momentum, not just total family count, since the two tell different stories here.
Filing activity peaked in 2019 at 35 families and has not returned to that level since, with the 2022 midpoint sitting at 24. Because publication lags filing by around eighteen months, the most recent one to two years will always look lower than they eventually turn out to be, so the 2026 figure of 8 is a floor rather than a real endpoint. Taken together, the pattern reads as a plateau rather than continued acceleration.
Both appear as core search terms in this corpus, with PLA (polylactic acid) claims anchored by older foundational patents like US5180765A, and PHA (polyhydroxyalkanoate) claims appearing more often in newer filings such as the CJ Cheiljedang security-pack filing from 2024. PLA claim territory is generally more heavily cited and therefore more likely to carry blocking prior art; PHA formulation claims, especially combined with specific lamination or barrier functions, show comparatively less citation density in this dataset.
China leads receiving offices with 77 filings, followed by India at 51, the European Patent Office at 48, the United States at 41, WIPO/PCT filings at 34, and Australia at 21. This distribution means freedom-to-operate and clearance work focused only on the US and Europe will miss a substantial share of the active filing base. Teams operating supply chains or sales channels in China or India in particular should treat local clearance as a first step, not an afterthought.
Relative to the two largest classes, B65D containers (262 records) and C08L polymer compositions (209 records), the coating and ink class C09D (32 records), the additive class C08K (61 records) and pulp-based D21H (62 records) show meaningfully thinner filing density. That does not guarantee an open field, since 339 families still cover a lot of ground, but it does mark the sub-areas where a well-drafted claim is less likely to run into dense blocking prior art. A targeted novelty search in those classes before drafting is the sensible next step.
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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.