Starch Bioplastic Film Patents: Leaders, Trends & White Space 2026
A data-driven view of starch bioplastic film patents: who leads filings, how the 2021 filing peak has evolved, which IPC classes carry the most claim density, and where under-claimed white space remains for new entrants.
Filing growth = 2021 (24 records) → 2024 (8); 2024 is the last year we treat as complete. Top-5 share = the 5 largest assignees ÷ all 203 records in scope (CR5), not the ranked leaders only.
What the starch bioplastic film patent record actually shows
Starch bioplastic film sits at the intersection of polymer chemistry and packaging engineering: patent claims range from the underlying starch-based polymer composition itself through to the finished container, bag or laminate that uses it. The 203 records in scope span filings from 2015 through the 2026 cut-off, with the heaviest claim density in polymer composition and packaging container classes rather than in food-contact or medicinal applications, which remain comparatively thin.
Filing activity is not evenly spread. A small group of assignees accounts for roughly half of all records, while a long tail files once or twice and does not return — a pattern that rewards teams who can identify durable technical footholds rather than chase filing volume.
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Filing trends and technology composition
Two views of the same 203-record dataset: how filing activity has moved year over year, and which IPC subclasses carry the claim weight.
A sharp peak, then a pullback
Filings rose from 3 in 2017 to a peak of 24 in 2021, then fell to 8 by 2024 — a -67% change over that three-year span. Because publication lags filing by roughly 18 months, the 2025 and 2026 figures are still filling in and should not be read as a continued decline.
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.
Composition and packaging dominate the claim space
C08L (polymer compositions) appears on 44.3% of the 203 records and B65D (containers & packaging) on 39.9%, confirming that most claim activity sits at the material-and-container level rather than in processing (C08J, 21.7%) or downstream food and medicinal uses (A23L 8.4%, A61K 4.9%), which remain comparatively open.
Shares are the percentage of the 203 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Biopolymers & Biodegradable Plastics: Starch Bioplastic Film Patent Landscape with Eureka
This page is one run against one query. Ask Eureka your own question about biopolymers & biodegradable plastics: starch bioplastic film patent landscape and every answer comes back with the patent numbers behind it.
Try EurekaThe most-cited and most representative filings
US12654931B2 — Compositions and materials for odor reducing articles including trash bags
Disclosed herein are polymer-based films, and articles made from or comprising them, for applications such as trash bags. Embodiments describe films comprising biodegradable polymers, post-consumer recycled material, and an odor-absorbing agent such as carbon, with the resulting article itself biodegradable.Filed by Simplehuman, LLC and published 2026-06-16, this filing shows how starch-adjacent biodegradable film claims are now being layered with functional additives — odor control, recycled content — rather than resting on the base polymer alone.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20160052692A1 | Biodegradable packaging for shipping | 72 |
| 2 | US20180086538A1 | Shipping container with compostable insulation | 43 |
| 3 | US20130220173A1 | Macrophyte-based bioplastic | 22 |
| 4 | US20100003434A1 | Biodegradable multiphase compositions based on starch | 22 |
| 5 | WO2008037749A2 | Biodegradable compositions based on nanoparticulate starch | 21 |
| 6 | WO2008037744A2 | Biodegradable multiphase compositions based on starch | 20 |
| 7 | US20200407147A1 | Compostable insert for shipping container | 18 |
| 8 | WO2013029018A1 | Macrophyte-based bioplastic | 16 |
| 9 | WO2020264063A1 | Hydro-liquid soluble films, products and uses thereof | 14 |
| 10 | US20220144517A1 | Hydro-liquid soluble films, products and uses thereof | 14 |
Citation counts favour older records that have had more time to accumulate citations within this searched corpus — read them as a signal of influence, not of 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 data means for filing strategy
Three findings that matter more to a filing decision than the raw counts alone.
The top of the field is consolidated, the rest is fragmented
The five leading assignees combine for 102 of the 203 records in scope. But the ranking drops steeply after that — fifth place holds 6 filings and tenth place only 5 — so beyond the leaders this is a field of single- and double-filing entrants, not a second tier of scaled competitors.
The 2021 peak has not been repeated
Filings hit 24 in 2021 and fell to 8 by 2024, a -67% change over three years. Read the 2025-2026 figures with the 18-month publication lag in mind — they are not yet complete and should not be treated as confirmation of a further slide.
Composition and container claims crowd the same ground
Polymer composition (C08L) and packaging/container (B65D) classes each cover well over a third of the 203 records, meaning new entrants filing straightforward composition-plus-container claims are filing into the densest part of the field, not around it.
India is the largest single receiving office
India receives more filings in this dataset than the United States or the EPO, with WIPO/PCT, Canada and Australia trailing further behind — a distribution worth checking before assuming US or European filings alone cover freedom-to-operate risk.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to biopolymers & biodegradable plastics: starch bioplastic film patent landscape, with the prior art for and against each one.
| Assignee | Co-assignee | Shared families |
|---|---|---|
| International Refils Ltd | ANGELCARE DEV INC | 12 |
| Novamont S.p.A. | FLORIDI GIOVANNI | 4 |
| Novamont S.p.A. | DEL TREDICI GIANFRANCO | 4 |
| Novamont S.p.A. | BASTIOLI CATIA | 4 |
| International Refils Ltd | ANGELCARE CANADA INC | 2 |
| ANGELCARE DEV INC | ANGELCARE CANADA INC | 2 |
| Specialty Minerals Michigan Inc | WERNETT PATRICK C | 2 |
| Novamont S.p.A. | CAPUZZI LUIGI | 1 |
Only 9 co-assignee pairs appear in the dataset, and the strongest pairing accounts for 12 shared filings — collaboration between assignees is the exception here, not the norm.
Where to take this analysis
The dataset points to specific next steps depending on whether you are scouting freedom-to-operate risk or looking for an open filing position.
Map claims against the leaders
With 50.2% of records held by five assignees, a claim chart against their granted families is the fastest way to see whether a planned filing sits inside or outside their coverage.
Run a claim comparison in EurekaStress-test the under-claimed branches
Food-contact (A23L, 8.4%) and medicinal (A61K, 4.9%) applications carry far fewer records than composition or packaging classes — worth checking whether that reflects real technical difficulty or just unclaimed space.
Explore white space in EurekaTrack the next filing wave
Because publication lags filing by around 18 months, 2025-2026 filings are still arriving; a monitoring watch on new India and US filings will catch the next real signal before the trend line does.
Set up a filing watch in EurekaCommon questions on starch bioplastic film patents
This dataset covers 203 published patent records filed between 2015 and the 2026 data cut-off, drawn from a search combining title/abstract terms with claim-level language around starch-based bioplastic films and biodegradable or compostable polymers. That figure counts records, not distinct inventions, since a single family can produce multiple published documents across jurisdictions. It is a useful scale reference but should not be read as a count of commercially active technologies.
The top 5 assignees in the ranking together hold 50.2% of the 203 records in scope, showing real concentration at the top of the field. Beyond that leading group, the ranking thins quickly — tenth place holds only 5 filings — so most of the remaining assignees are single- or double-filing entrants rather than a stable second tier. Anyone doing competitive tracking should focus monitoring effort on the leading group rather than trying to watch the full 100-company ranking evenly.
Filings peaked at 24 in 2021 and had fallen to 8 by 2024, a -67% change over that three-year span, which is the last period the dataset treats as complete. Because patent publication typically lags filing by around 18 months, the lower counts recorded for 2025 and 2026 are still filling in and do not yet represent a confirmed continued decline. Any trend read on the most recent one to two years should be treated as provisional until later publication catches up.
C08L (polymer compositions) and B65D (containers & packaging) are the two densest classes, covering 44.3% and 39.9% of the 203 records respectively, meaning most claim activity concentrates on the base material and the finished packaging item. C08J (polymer processing) and C08K (additives) follow at meaningfully lower shares, and applications in food (A23L) and medicinal (A61K) contexts are comparatively rare. A new filing that only restates composition-plus-container claims is entering the most crowded part of the field, not an open corner of it.
The class-level shares suggest processing methods (C08J, 21.7%), additive formulations (C08K, 19.2%) and downstream applications in food contact (A23L, 8.4%) or medicinal contexts (A61K, 4.9%) carry noticeably less claim density than base composition or packaging claims. That lower density does not guarantee an easy grant, since it may reflect technical difficulty rather than unclaimed opportunity, but it is a reasonable starting point for a claim chart before drafting. Checking the leading assignees' families in those specific classes is the fastest way to confirm whether the space is genuinely open.
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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.