Edible Packaging Film Patents: Leaders, Trends & White Space 2026
An analysis of 191 edible packaging film patent families from 2015-2026, covering assignee concentration, filing trends, IPC technology composition, and the most-cited prior art shaping the field.
Filing growth = 2021 (4 records) → 2024 (7); 2024 is the last year we treat as complete. Top-5 share = the 5 largest assignees ÷ all 191 records in scope (CR5), not the ranked leaders only.
What the edible packaging film patent record actually covers
Edible packaging film sits at the intersection of food science and materials packaging: claims range from starch- and protein-based film substrates to the additive packages, plasticisers and barrier coatings that make those films workable at commercial line speeds. The search scope captures 191 published patent records filed or published between 2015 and the 2026 cut-off, drawn from documents that combine edible-film terminology in the title or claims with packaging-container language, restricted to the B65D and B65B containers and packaging classes. Publication lags filing by roughly 18 months, so the most recent one to two years in any trend understate real activity.
The dataset mixes food-grade film chemistry (starches, gums, proteins) with the mechanical and container claims that packaging classifiers require, which is why polymer-composition and polymer-processing IPC classes appear alongside food and pharmaceutical subclasses. That overlap is itself informative: a filer choosing where to stake a claim has options in food science, materials science, or pharma dosage-form framing, and the class distribution below shows which of those routes is already crowded.
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Filing trend and technology composition
Two views matter most for deciding where to file next: how filing volume has moved year over year, and which IPC subclasses concentrate the existing claim space.
Filing trend: a 2018 peak, a slower rebuild
Annual filings opened at 5 in 2017, spiked to a peak of 18 in 2018, and by 2021 had fallen back to 4. From there the field rebuilt: 2021 to 2024 shows +75% growth (4 to 7 records), before the two most recent years taper off in the count — an artefact of publication lag rather than a real slowdown.
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: packaging framing dominates, polymer chemistry is dense underneath
B65D (containers & packaging) appears on 94.2% of the 191 records, which reflects the search scope itself rather than a technology finding. Underneath that framing, C08L polymer compositions (46.6%), C08J polymer processing (44.0%) and C08K additives (38.7%) show that most of the substantive claim activity is in film chemistry, not container mechanics. A23L food applications sit on 28.8% of records, and A61K medicinal-preparation framing on 13.1% signals a meaningful pharma-dosage-form branch (oral films) layered onto the same base technology.
Shares are the percentage of the 191 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Edible Packaging Film Patent Landscape with Eureka
This page is one run against one query. Ask Eureka your own question about edible packaging film patent landscape and every answer comes back with the patent numbers behind it.
Try EurekaThe patents shaping freedom to operate
EP0389513B1 — Packaging for water-containing substances
A filled package for dissolution in water comprises a sealed water-soluble packaging containing a concentrated aqueous syrup of at least one substance, with the substance concentration held high enough that at storage temperature the water in the syrup does not attack or dissolve the packaging to the point of rupture over the intended storage period.Filed by Markbeech Packaging Limited; granted 1994-07-13. Representative of the water-soluble packaging branch that predates most of the modern edible-film filings in this dataset.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US3851574A | Heat and moisture activated savory coating system for popcorn | 144 |
| 2 | US20050089548A1 | Edible film | 132 |
| 3 | US20110290694A1 | Oral film dosage form having indicia thereon | 82 |
| 4 | CN101906220A | 一种淀粉基可食性膜及其制备方法 | 54 |
| 5 | WO2003043659A1 | Edible film | 51 |
| 6 | US2517595A | Coating of foods with pectinate films | 39 |
| 7 | US5741533A | Method of cooking a food product and product thereof | 34 |
| 8 | US20060051464A1 | Fruit and vegetable films and uses thereof | 33 |
| 9 | CN101811596A | 一种可食性多糖-蛋白复合包装膜及其制备方法 | 32 |
| 10 | CN103113603A | 一种指示食物酸败的可食用包装膜及其制备方法 | 28 |
Citation counts favour older records that have had more time to accumulate citations inside this corpus — read them as a signal of influence, not current relevance.
Patent titles are shown in the language they were filed in, not translated, so that each record stays verifiable against the original filing — a translated title will not match in Eureka or in any national register. 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 geography numbers mean for strategy
The ranking, the filing trend and the receiving-office split each point to a different practical decision: who to watch, when to file, and where to file it.
No single assignee controls the field
The leading assignee holds 9 records and fifth place holds 8 — a narrow gap that signals no dominant blocking position. With the top 5 combined at only 22.5% of all 191 records and the top 10 at 40.3%, most of the field is held by single- or low-digit filers, which is consistent with a technology still being staked out rather than consolidated.
China is the primary filing venue by volume
China receives 91 of the 191 records, well ahead of the United States (17), the EPO (14) and Japan (13). A filing strategy built only around US or European coverage will miss the majority of documented activity in this space, including the domestic Chinese assignees that make up much of the long tail.
Renewed filing momentum after the 2018 peak
Volume peaked at 18 in 2018, dropped through the early 2020s, and has since grown 75% from 2021 to 2024. That reversal — rather than a straight decline since the peak — is the more useful signal for timing a filing decision now.
Polymer composition claims are the densest layer
C08L polymer-composition claims sit on 46.6% of records and C08J polymer-processing claims on 44.0%, making these the most contested chemistry classes beneath the packaging framing. A23P food-shaping claims, by contrast, appear on only 7.9% of records — a comparatively open branch.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to edible packaging film patent landscape, with the prior art for and against each one.
| Assignee | Co-assignee | Shared families |
|---|---|---|
| Seiwa Kasei Co., Ltd. | Resonac Holdings Corporation | 8 |
| MonoSol Rx | HARIHARAN MADHU | 2 |
| MonoSol Rx | FUISZ RICHARD C | 2 |
| MonoSol Rx | SLOMINSKI GREG | 1 |
| MonoSol Rx | BOGUE BEUFORD ARLIE | 1 |
| Givaudan SA | ZHANG JING | 1 |
| Givaudan SA | VIRGALITTO MARGARET T | 1 |
| Kalle & Co Aktiengesellschaft | TAEGER EBERHARD | 1 |
Ten co-assignee pairs appear in the dataset; the strongest pairing (8 shared records) links a Japanese specialty-chemicals filer with a materials-holding company, suggesting a supplier-and-integrator relationship rather than a joint venture of equals.
Where to take this analysis next
The dataset points to a field with a long tail of filers, a chemistry layer that is more contested than the packaging framing suggests, and a geography skewed heavily toward China.
Map the white space in food-shaping claims
A23P food-shaping and forming claims sit on only 7.9% of records, well below the polymer-chemistry classes. That gap is worth testing against your own process claims before assuming it is already occupied.
Explore white space in EurekaTrack the long tail of single-filing entrants
With the top 10 assignees holding only 40.3% of records, most of the field is single- or low-digit filers. Monitoring new entrants matters as much as watching the current leader.
Set up assignee monitoring in EurekaCheck freedom to operate against the oral-film branch
A61K medicinal-preparation framing appears on 13.1% of records, layering pharma dosage-form claims onto edible-film chemistry. Any commercial film touching ingestible dosage forms should be checked against this branch specifically.
Run a freedom-to-operate search in EurekaCommon questions about edible packaging film patents
The dataset's ranked leaders show no dominant single holder: the top assignee holds 9 of the 191 records in scope, and the fifth-ranked holder has 8. The top 5 combined account for only 22.5% of all 191 records, and the top 10 combined for 40.3%, which means most filing activity sits in a long tail of companies and individual inventors with just one or two records each. This pattern is more typical of an actively contested, not-yet-consolidated technology than of a field with an entrenched incumbent.
Filing volume peaked in 2018 at 18 records, then dropped through the early 2020s to 4 records in 2021. From that low point, filings grew 75% by 2024 (4 to 7 records), which reads as renewed momentum rather than a continuous decline. Figures for 2025 and 2026 in this dataset are still incomplete because patent publication typically lags filing by around 18 months, so the most recent years should not be read as a slowdown.
China is the largest receiving office by a wide margin, with 91 of the 191 records in scope, compared with 17 at the USPTO, 14 at the EPO, 13 in Japan, and 9 each in Australia and via the WIPO PCT route. A strategy focused only on US or European filings would miss most of the documented activity, particularly the domestic Chinese assignees that make up a large share of the long tail. This split is worth checking against your own target markets before scoping a freedom-to-operate search.
Beneath the B65D containers-and-packaging framing that defines the search scope (94.2% of records), the densest technical layers are polymer chemistry: C08L polymer compositions appear on 46.6% of records and C08J polymer processing on 44.0%, with C08K additive claims on 38.7%. Food-application framing under A23L covers 28.8% of records, and a smaller but notable branch under A61K (13.1%) applies edible-film chemistry to medicinal dosage forms such as oral films. Because a single record can carry several IPC codes, these shares do not sum to 100%.
EP0389513B1 describes a filled, water-soluble package holding a concentrated aqueous syrup, engineered so the syrup's own concentration prevents the packaging from dissolving or rupturing during storage. It is one of the representative early filings in this landscape and predates most of the modern edible-film chemistry records in the dataset. Whether it blocks a new filing depends on whether your claims overlap its specific water-solubility and concentration-threshold mechanism; broader edible-film compositions built on different barrier chemistry are unlikely to be blocked by it alone, but any water-soluble sachet-style packaging claim should be checked against it directly.
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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.