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Run your analysis now →https://www.patsnap.com/resources/blog/rd-blog/barrier-technologies-for-pet-containers-patent-landscape/ · Patsnap · data cut-off 2026-07-31 · downloaded from the live page
Patent Landscape · Packaging TechnologyBarrier Technologies for PET Containers: Patents Behind Oxygen Scavenging and Coating Claims
- 59 records, one clear leader. the top-ranked assignee holds 20 records against a fifth-place count of 3 and a tenth-place count of 1 — a steep drop-off after the leader, not a crowded field.
- Filing has never been dense. the trend runs from 0 in 2017 to a peak of just 7 records in 2023, so this is a narrow, specialist claim space rather than a mass-filing one.
- Containers and laminates dominate the classing. B65D and B32B cover 57.6% and 40.7% of the 59 records respectively, while food-preservation classing (A23B) trails at 18.6% — the packaging structure gets claimed far more than the preservation outcome.
59
Published Records
US
Leading Jurisdiction
12
Active Filers Ranked
2023
Peak Filing Year
Published byPatsnap Research··7 min readSourced from Patsnap Eureka
Overview
What this landscape covers
This dataset tracks patent records at the intersection of PET barrier coatings and oxygen scavenger technology, filtered to documents whose title or claims reference oxygen ingress rate, carbon dioxide retention, plasma coating process, multilayer coinjection, recyclability impact, or shelf-life extension. That filter is deliberately narrow: it is built to isolate the engineering claims that actually determine whether a PET container holds its barrier performance, not every packaging patent that happens to mention PET.
The 59 records in scope span filings from 2015 through the 2026 cut-off, with the most recent year necessarily undercounted because publication typically lags filing by around 18 months. Reading the trend line, the assignee ranking and the IPC composition together gives a picture of where claim density has built up, who built it, and which adjacent branches have comparatively few filings on record.
Filing activity and technology composition, 2015–2026
Source: Patsnap Eureka. Assignee ranking and totals. Derived from a Patsnap search on Barrier Technologies for PET Containers covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
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The Data
Filing trend and technology composition
Two views of the same 59 records: the year-by-year filing count, and the IPC subclasses those records carry. Because a single record can sit in several subclasses, the composition shares sum to more than 100% of the record total.
Filing activity, 2015-2026
Filings register zero in 2017 and reach a peak of 7 records in 2023, with 2026 still partial at the data cut-off. There are not enough complete post-lag years to state a growth rate, and the shape overall is one of sporadic, low-volume filing rather than a sustained ramp.
IPC subclass composition
B65D (containers & packaging) and B32B (layered products & laminates) lead at 57.6% and 40.7% of the 59 records. A23L (foods & non-alcoholic beverages) and C08J (polymer processing) follow in the 25-29% range, with C09D (coatings), B01J (catalytic processes), B65B (packaging/wrapping) and A23B (food preservation) each present in 18-24% of records — evidence that claims cluster around the physical container and laminate structure more than around the food-preservation end use.
Shares are the percentage of the 59 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Source: Patsnap Eureka. Filing trend and technology composition. Derived from a Patsnap search on Barrier Technologies for PET Containers covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.
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The most-cited prior art in this space
Representative Filing
US7238300B2 — Process for subjecting to actinic radiation and storing an oxygen scavenger, and a stored oxygen scavenger
CHEVRON PHILLIPS CHEMICAL COMPANY LP
A method comprises subjecting an oxygen scavenger to actinic radiation, then optionally storing it in a container configured so the scavenger exhibits no substantial oxygen scavenging activity while inside. The dosed scavenger can later be removed, subjected to a second dose of actinic radiation to trigger it, and used in packaging oxygen-sensitive products. A stored, untriggered scavenger is also disclosed.Filed by Chevron Phillips Chemical Company LP, granted 2007-07-03. The two-stage dose-then-trigger mechanism is the structural core that later filings in this space have had to design around.
Highest-citation records in scope
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20080241521A1 | Oxygen absorbing plastic structure | 45 |
| 2 | US20040129554A1 | Process for subjecting to actinic radiation and storing an oxygen scavenger, and a stored oxygen scavenger | 22 |
| 3 | US20060228449A1 | Apparatus and method for extending shelf-life and prevention of discoloration of meat | 14 |
| 4 | US7238300B2 | Process for subjecting to actinic radiation and storing an oxygen scavenger, and a stored oxygen scavenger | 14 |
| 5 | US20060147586A1 | Method for extending shelf-life and prevention of discoloration of meat | 8 |
| 6 | US20040071840A1 | Shelf-life extension system and method of centrally prepared retail-ready meat cuts utilizing a zero-oxygen p… | 8 |
| 7 | US8110261B2 | Oxygen absorbing plastic structure | 6 |
| 8 | WO2004103081A2 | System and method of prepared retail meat in zero oxygen package | 5 |
| 9 | US20220403157A1 | Polyester composition | 4 |
| 10 | WO2009120393A1 | Oxygen absorbing plastic structure | 3 |
Citation counts inside a searched corpus favour older records by construction — treat these as a signal of influence on later filings, not as a ranking of current commercial relevance.
Each row carries its publication number; clicking a row searches Eureka by that number.
Source: Patsnap Eureka. Citation counts and representative records. Derived from a Patsnap search on Barrier Technologies for PET Containers covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
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What the numbers say about this field
Three read-outs from the ranking, the trend and the classing data, each pointing at a different decision a reader might need to make.
Concentration
20 vs. 3
leader vs. fifth place, in records
One assignee, then a steep drop
The leading assignee holds 20 of the records in the ranked set, while fifth place holds only 3 and tenth place just 1. That gap suggests one company built out a broad position early and the rest of the field has filed in small, specific increments rather than competing head-on for the same claim territory.
Assignee ranking, 12 companies
Filing pace
0 → 7 → 0
records in 2017, peak year 2023, 2026 (partial)
A narrow, episodic filing history
Filing volume never exceeds 7 records in a single year across the coverage window, and 2017 shows no filings at all. This is a specialist niche rather than an actively contested one — useful context before assuming any single year's dip or peak signals a strategic shift.
Filing trend, 2015-2026
Claim geography
57.6% / 18.6%
B65D share vs. A23B share of 59 records
Structure claims outnumber preservation claims
B65D (containers & packaging) appears in 57.6% of the 59 records, more than three times the 18.6% carrying A23B (food preservation). Filers are claiming the container and laminate architecture far more heavily than the downstream food-preservation effect, which is one place the claim space is comparatively open.
IPC composition, 8 leading subclasses
Eureka AI Agent
Looking for what nobody has claimed yet?
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to barrier technologies for pet containers, with the prior art for and against each one.
Source: Patsnap Eureka. Co-assignee relationships and derived observations. Derived from a Patsnap search on Barrier Technologies for PET Containers covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
Players
Who holds the claims
The ranked set covers 12 companies. One assignee holds a wide lead in record count; the remainder file in ones and twos, often paired with a small number of recurring co-assignees rather than as isolated, one-off filers.
Leader
20 records
top of the ranking
A single dominant filer
The top-ranked assignee's 20 records sit well ahead of the rest of the ranked set, indicating a sustained, multi-filing programme around oxygen scavenger and barrier technology rather than a single landmark patent.
Assignee ranking
Mid-field
3 records
fifth place
A thin middle tier
By fifth place the count has already fallen to 3 records, and by tenth place to just 1. There is no meaningful second cluster of filers competing at scale with the leader — most of the field files occasionally rather than repeatedly.
Assignee ranking
Co-filing
10 pairs
co-assignee pairings
A small web of joint filings
Ten co-assignee pairs appear in the dataset, with the strongest pairing recurring at 3 shared records and two other pairings at 2 each. Joint filing here looks like an occasional practice tied to specific R&D collaborations rather than a structural norm.
Co-assignee pairs
Recent filing momentum
| Assignee | Recent year | YoY |
|---|---|---|
| Multisorb Technologies Inc. | 0 | — |
| Omya International AG | 0 | -100% |
| TEWARI GAURAV | 0 | — |
| Furanix Technologies BV | 0 | — |
| Chevron Phillips Chemical Company LP | 0 | — |
| Cryovac Inc. | 0 | — |
| GAURAV TEWARI | 0 | — |
| Anheuser-Busch Inc. | 0 | — |
Source: Patsnap Eureka. Assignee-level momentum. Derived from a Patsnap search on Barrier Technologies for PET Containers covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
What's Next
Taking this further
The trend and ranking data point to specific next steps depending on whether the goal is freedom-to-operate, licensing, or identifying open claim territory.
Check freedom-to-operate against the leader's portfolio
With one assignee holding 20 of the 59 records, any new filing in oxygen-scavenger or coating claims should be checked against that portfolio specifically, not just the field average.
Explore the leader's claims in EurekaProbe the under-claimed sub-areas
Recyclability impact and plasma-coating process parameters carry thinner representation than the core B65D and B32B classes, which is where a narrowly drafted first claim is more likely to clear prior art.
Run a white-space search in EurekaTrack the receiving-office spread
Filings concentrate in the United States, Canada and WIPO/PCT routes, with smaller but present counts in Europe, Australia and India — relevant to where enforcement and opposition risk actually sits.
Map jurisdiction coverage in EurekaSource: Patsnap Eureka. Forward-looking reading of the same dataset. Derived from a Patsnap search on Barrier Technologies for PET Containers covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
FAQ
Common questions about PET barrier patents
In this dataset the leading assignee holds 20 of the 59 records in scope, well ahead of the rest of the ranked field — fifth place holds only 3 records and tenth place just 1. That gap indicates a single company built a sustained filing programme around oxygen scavenger and barrier-coating claims rather than the field being evenly contested. Anyone doing freedom-to-operate work in this space should treat that leader's portfolio as the first thing to check, not the last.
An oxygen scavenger is a material or additive built into or applied to a PET container that actively absorbs residual oxygen, extending shelf life for oxygen-sensitive contents like food and beverages. The representative filing in this dataset, US7238300B2, claims a process where the scavenger is dosed with actinic radiation and can be stored inactive until a second radiation dose triggers its scavenging activity. That two-stage activate-then-trigger approach is a recurring structural theme across the most-cited records in this space.
This landscape identifies 59 published records matching a search built around PET barrier coatings and oxygen scavenger technology, filtered further to documents addressing oxygen ingress rate, carbon dioxide retention, plasma coating, multilayer coinjection, recyclability impact or shelf-life extension. Filing activity peaked at 7 records in 2023 and has otherwise stayed low across the 2015-2026 window, which points to a narrow specialist niche rather than a heavily filed technology area. The 2026 figure is partial because publication typically lags filing by roughly 18 months.
The dominant classes are B65D (containers & packaging), present in 57.6% of the 59 records, and B32B (layered products & laminates) at 40.7%. A23L (foods & non-alcoholic beverages) and C08J (polymer processing) follow at 28.8% and 25.4%, with C09D (coatings), B01J (catalytic processes), B65B (packaging/wrapping) and A23B (food preservation) each covering 18-24% of records. Because a single record can carry multiple IPC classes, these shares add up to more than 100% of the record total and should not be summed.
It is not crowded by filing volume: the trend never exceeds 7 records in any single year across the 2015-2026 window, and one year (2017) shows zero filings. It is concentrated at the top by ownership, with one assignee holding 20 of the 59 records, but several adjacent branches — recyclability impact of barrier layers, plasma-coating process parameters, and carbon dioxide retention measurement specifically — carry comparatively thin representation relative to the core container and laminate classes. That combination suggests room for narrowly drafted claims in the under-represented sub-areas, provided they clear the leader's existing portfolio.
Answers are grounded in the same dataset. Derived from a Patsnap search on Barrier Technologies for PET Containers covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
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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.