Aseptic Packaging Materials Patents: Leaders, Trends & Gaps 2026
- Filing has cooled since 2019. activity peaked at 24 records that year and has declined toward single digits by the most recent full year, with the latest year necessarily undercounted.
- Claim space concentrates in packaging mechanics, not materials science. B65B packaging & wrapping accounts for 326 of 412 records versus 116 in B32B laminates, so raw material chemistry claims sit on a comparatively thinner base.
- Co-filing is rare and mostly cross-border. only 10 co-assignee pairs exist across the dataset, and the strongest links pair a specialty coatings firm with a materials group rather than two packaging majors.
Filing growth compares 2021 (21 records) with 2024 (9) — a three-year span. 2024 is the most recent year we treat as complete: publication lags filing by roughly 18 months, so 2025 onwards are still filling in and any growth rate that ends there would understate the field. Top-5 share is the combined record count of the five largest assignees divided by all 412 records in scope (CR5), not by the ranked leaders only.
What this landscape covers
This review tracks 412 patent families published between 2015 and 2026 that combine aseptic packaging or sterile filling terminology with claims over multilayer laminates, barrier carton material, sterilizable film, or general packaging material, filtered to the B32B27, B65D65/40 and B65B55 classification classes. The scope is deliberately narrow: it is built to isolate material and construction claims inside aseptic packaging, not the broader universe of sterile filling equipment or food-contact packaging generally.
Filing offices split across the United States, Europe, Japan, Australia, Canada and the WIPO PCT route, indicating a technology that files multi-jurisdictionally rather than staying domestic — a pattern typical of packaging materials sold into global food and pharma supply chains.
Filing trend and technology composition
Two views of the same 412 families: how filing volume has moved year over year, and how those filings distribute across IPC subclasses.
A peak in 2019, then a decline
Filings rose from 12 in 2017 to a peak of 24 in 2019, fell back to 7 by the midpoint year of 2022, and continue toward single digits into 2026. Because publication typically lags filing by around 18 months, the last one to two years understate true activity — but the multi-year decline from the 2019 peak predates that lag and looks structural rather than a reporting artefact.
Packaging mechanics dominate over material chemistry
B65B (packaging & wrapping) carries 326 of the 412 records, well ahead of B32B (layered products & laminates) at 116, B65D (containers) at 88 and A61L (sterilising & disinfecting) at 80. Smaller counts in A23L, B29C, C09D and C01B show that food-contact formulation, plastics shaping and coatings claims exist but remain a minority share of the corpus.
Shares are the percentage of the 412 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Aseptic Packaging Advanced Materials with Eureka
This page is one run against one query. Ask Eureka your own question about aseptic packaging advanced materials and every answer comes back with the patent numbers behind it.
Try EurekaMost-cited prior art and a representative filing
US20120318698A1 — Sterilizable Film for Aseptic Packaging (Cryovac, Inc.)
A multilayer coextruded sterilizable film for aseptic packaging: an outer layer blending a cyclic olefin copolymer (Tg ≥ 80°C) with an olefinic copolymer (melting point ≥ 125°C), giving the film a storage modulus of at least 10⁹ dynes/cm² at temperatures up to 140°C, plus a resulting aseptic package and its method of manufacture.Filed by Cryovac, Inc., published 2012-12-20.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US4910942A | Methods for aseptic packaging of medical devices | 144 |
| 2 | US4021283A | Method of making aseptic packaging | 144 |
| 3 | US6536188B1 | Method and apparatus for aseptic packaging | 105 |
| 4 | US20040043238A1 | Packaging film, package and process for aseptic packaging | 94 |
| 5 | US6475435B1 | Apparatus and method for providing sterilization zones in an aseptic packaging sterilization tunnel | 88 |
| 6 | US4121107A | Apparatus for automatic low-bacteria to aseptic filling and packing of foodstuffs | 88 |
| 7 | US4409775A | Apparatus for the aseptic packing of high acid food | 82 |
| 8 | US4944132A | Apparatus for the sterile packaging of contents | 70 |
| 9 | US4537007A | Process and plant for endless-cycle sterilization of sheet material utilized in aseptic packaging of pre-ster… | 57 |
| 10 | US3854874A | Apparatus for controlling the atmosphere of the sterile chamber in an aseptic packaging machine | 50 |
Citation counts favour older filings inside any searched corpus; treat this table as a map of foundational and frequently-licensed art, 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 numbers mean for a filing decision
Four read-outs from the trend, classification and citation data, translated into what they imply for someone deciding where to file or where to expect resistance.
The category has passed its filing peak
Volume climbed from 12 in 2017 to 24 in 2019 and has fallen back toward single digits since, with the most recent year still incomplete. A cooling filing rate does not mean the underlying materials problem is solved — it more often means the obvious formulations have been claimed and remaining filers are working narrower variations.
Mechanics claims outnumber material claims nearly 3:1
Most of this corpus protects how aseptic packages are formed, filled and sealed rather than the laminate chemistry itself. A team with a genuinely new barrier film composition is filing into a comparatively less crowded B32B/A61L intersection than a team filing on filling-line mechanics.
Collaboration is the exception, not the norm
Only ten co-assignee pairings appear in the whole dataset, and the strongest of them link a specialty ink/coatings supplier with a materials group rather than two converters or two packaging majors. Most protection here is built solo, which also means joint-development deals rarely show up as joint patent ownership.
Foundational art is old, and still the reference point
The most-cited records date back decades and cluster around aseptic packaging methods and sterilization-tunnel apparatus rather than film chemistry specifically. New filings are still being read against this older art, so freedom-to-operate work should not skip it just because it predates the recent filing window.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to aseptic packaging advanced materials, with the prior art for and against each one.
| Assignee | Co-assignee | Shared families |
|---|---|---|
| Sun Chemical Limited | DuPont Canada Company | 7 |
| BBC Brown Boveri AG | ALUMINIUM WERKE AG | 5 |
| Cryovac, Inc. | BEKELE SOLOMON | 4 |
| Sun Chemical Limited | BRECK ALAN KEITH | 4 |
| Cryovac, Inc. | MICNERSKI KENNETH | 2 |
| Cryovac, Inc. | CAUDLE TIMOTHY G | 2 |
| Tetra Laval Holdings & Finance S.A. | TETRA PAK RES | 2 |
| BBC Brown Boveri AG | BEE BEE TSUEE AG BURAUN BOBERI UNTO | 2 |
Cross-border pairings between a materials/coatings supplier and a converter are the dominant pattern; packaging majors largely file independently.
Assignees and where activity is heading
Ranking by family count sits in the table above; the pattern that matters here is what the leaders are doing right now, not just how many families they hold historically.
The named leaders have gone quiet in the most recent year
Every one of the six assignees tracked for recent-year momentum — spanning converters, a foodservice systems group and specialty materials firms — shows zero filings in the latest year. Given the publication lag, some of this is reporting delay, but a leader list with uniform zero momentum also suggests the active edge of filing has shifted to smaller or unlisted entrants.
Multi-jurisdictional filing is standard, not exceptional
The United States and EPO each carry the largest office counts, with Japan, Australia, Canada and the PCT route each taking a meaningful share. A single-country filing strategy is the exception in this space; buyers of aseptic packaging materials are global, so protection tends to follow them.
Joint filings cluster around ink, coating and substrate pairings
Where co-assignment does happen, it tends to pair a coatings/ink specialist with a materials or foil producer rather than two packaging-line builders. That points to collaboration happening at the substrate-treatment layer, not at the fill-and-seal equipment layer.
| Assignee | Recent year | YoY |
|---|---|---|
| Cryovac, Inc. | 0 | — |
| Tetra Laval Holdings & Finance S.A. | 0 | — |
| JBT FoodTech (John Bean Technologies Corporation) | 0 | — |
| BBC Brown Boveri AG | 0 | — |
| STERAFILL LTD | 0 | — |
| Evonik Industries AG | 0 | — |
| Sun Chemical Limited | 0 | — |
| Mitsubishi Gas Chemical Company, Inc. | 0 | — |
Turning this landscape into a filing or design-around decision
The trend and classification data narrow down where to look; the next step is checking specific claim language against a candidate design before committing engineering time.
Pressure-test a formulation against the cited art
Run a candidate barrier film or laminate composition against the most-cited records in this set before drafting claims, since several of them are decades old and still actively cited.
Explore prior art in Eureka →Map the white space branches to your own R&D roadmap
The under-claimed sub-areas here are thin relative to the core corpus, not empty — verify current filing activity in the specific sub-branch before assuming freedom to operate.
Search white space in Eureka →Common questions about this landscape
The ranking is dominated by a small group of converters and materials suppliers with long filing histories, visible in the assignee table on this page rather than in this summary. What stands out more than any single leader is that the top named assignees all show zero filings in the most recent year, which suggests the active edge of the field may have shifted toward smaller or newer filers. Family counts, not raw document counts, are the fairer comparison since they neutralise multi-jurisdiction filing by the same applicant.
Filings peaked in 2019 at 24 records and have declined toward single digits by the most recent full year tracked. Publication lag of roughly 18 months means the last one to two years are undercounted in any dataset, so the true recent rate is somewhat higher than shown. Even accounting for that lag, the multi-year decline from the 2019 peak predates the lag window and points to a genuine cooling rather than a reporting gap.
Packaging mechanics classified under B65B account for the largest single share of the corpus, well ahead of layered-product and laminate claims under B32B. That means claim space around how aseptic packages are formed, filled and sealed is comparatively dense, while material composition claims — particularly at the B32B/A61L intersection — have relatively more room. High density in a classification signals occupied claim space, not necessarily a mature or superior technology.
Sub-areas such as cyclic olefin copolymer barrier blends, inorganic oxide coating layers, and recyclable mono-material laminates show thinner coverage relative to the dense core of packaging mechanics claims. That does not mean these areas are unclaimed, only that they carry less prior art density in this specific corpus, so a targeted freedom-to-operate search is still necessary before filing. Bio-based barrier substrates for food-contact use are another branch worth checking, given the comparatively small A23L share of the dataset.
It claims a multilayer coextruded sterilizable film built around an outer layer blending a cyclic olefin copolymer with a glass transition temperature of at least 80°C and an olefinic copolymer with a melting point of at least 125°C, engineered to hold a storage modulus of at least 10⁹ dynes/cm² up to 140°C. The claim also extends to the resulting aseptic package and the method of making it, filed by Cryovac, Inc. Anyone designing a competing sterilizable film should check both the specific polymer blend limitations and the storage-modulus threshold, since those are the measurable parameters most likely to define infringement.
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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.