Thermoplastic Composite Safety Patents: Leaders & White Space 2026
- Filing activity peaked in 2020 at eight families and has since gone flat, with the 2022 midpoint showing zero filings — a pause rather than a steady climb.
- B29C (shaping of plastics) and B32B (layered products) dominate the IPC mix, while C08F addition polymers and C09K misc. materials sit at just three records each, marking thin coverage.
- Co-assignment is rare — only two pairs across the whole dataset, suggesting most flame-retardant thermoplastic composite work is still done by single filers rather than joint ventures.
Filing growth compares 2021 (2 records) with 2024 (0) — 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 41 records in scope (CR5), not by the ranked leaders only.
What this landscape covers
This dataset tracks patent families combining thermoplastic composite or thermoplastic matrix composite terminology with flame-retardancy, fire-smoke-toxicity, or FST compliance language, filtered to IPC classes covering polymer additives (C08K5), plastics shaping (B29C70) and polyamide-type compositions (C08L77). It spans filings from 2015 through the middle of 2026, giving a 41-family view of how flame safety has been claimed inside thermoplastic composite processing and formulation work.
Because publication typically lags filing by around 18 months, the 2025 and 2026 counts in this dataset are undercounts of actual filing activity — treat the most recent one to two years as a floor, not a ceiling.
Filing trend and technology composition
Two views of the same 41-family dataset: how filing volume has moved year over year, and where those filings sit across the IPC subclasses that define this compliance niche.
A peak, then a plateau
Filings rose from two in 2017 to a peak of eight in 2020, then fell back — the 2022 midpoint shows zero filings, and the line has not recovered since. That pattern points to a technology area that saw a short burst of compliance-driven filing rather than sustained investment.
Shaping and layering dominate, chemistry lags
B29C (shaping of plastics) and B32B (layered products) each carry far more records than the additive- and composition-focused classes C08K, C08L and C08F. That split suggests most of the documented innovation is in how flame-retardant thermoplastic composites are processed and laminated, not in new additive chemistries themselves.
Shares are the percentage of the 41 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Thermoplastic Composite Safety and Compliance with Eureka
This page is one run against one query. Ask Eureka your own question about thermoplastic composite safety and compliance and every answer comes back with the patent numbers behind it.
Try EurekaMost-cited records and a representative filing
US20200032012A1 — Thermoplastic composite, method for preparing thermoplastic composite, and panel
Provided are a thermoplastic composite and a preparation method therefor, the composite comprising: a fiber structure having a network structure comprising at least one layer of fiber woven sheet; thermoplastic resin particles having a particle diameter of 1-50 μm; and a particulate flame retardant, wherein the thermoplastic resin particles and the particulate flame retardant are impregnated into the fiber structure. In addition, a panel comprising a thermo-compressed product of the thermoplastic composite is provided.Filed by LG Hausys, published 2020-01-30.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US6758996B2 | Cellulose-reinforced thermoplastic composite and methods of making same | 74 |
| 2 | US20030030176A1 | Cellulose-reinforced thermoplastic composite and methods of making same | 55 |
| 3 | US5261984A | Stamp press process for imprinting decorative textures in thermoplastic composites | 23 |
| 4 | JP1991152162A | Thermoplastic composite resin composition | 12 |
| 5 | WO2020247549A1 | Thermoplastic GEL coat | 11 |
| 6 | WO2014184429A1 | Flame resistant thermoplastic composite | 11 |
| 7 | EP1275699A1 | Cellulose-reinforced thermoplastic composite and methods of making same | 11 |
| 8 | EP0552918A1 | Process for imprinting thermoplastic composites | 11 |
| 9 | KR102078617B1 | Method For Manufacturing Functional Thermoplastic Composite Materials and Thermoplastic Composite Materials M… | 8 |
| 10 | EP3659676A1 | Rail interior compliant thermoplastic composite | 7 |
Citation counts reflect influence inside this searched corpus and skew toward older filings — treat them as a signal of prior-art density, not of current commercial relevance.
Each row carries its publication number; clicking a row searches Eureka by that number.
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Browse MCP servers →What the numbers say about this niche
Three signals stand out once the filing trend and IPC composition are read together: a short filing burst, a shaping-heavy claim base, and citation weight sitting on much older documents than the peak filing year.
A burst, not a build
Filings climbed to eight in 2020 and then dropped to zero by the 2022 midpoint. That is consistent with a wave of compliance-driven filing tied to a specific regulatory or program deadline rather than an ongoing R&D push.
Processing outweighs chemistry
B29C (shaping of plastics) carries more than double the records of C08K (polymer additives), meaning the documented claim space favours forming and laminating methods over new flame-retardant formulations.
Old anchors, thin recent influence
The most-cited record in this set dates well before the 2020 filing peak, and citation counts inside a searched corpus favour older records by construction. Recent filings have not yet built comparable citation weight.
Filers mostly go it alone
Only two co-assignee pairs appear across 41 families, and the strongest pair links just three shared records. Joint filing is the exception here, not the norm.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to thermoplastic composite safety and compliance, with the prior art for and against each one.
Who is filing, and where the gate sits
Assignee momentum in the most recent year is uniformly flat across the names tracked — none show filings in the latest year — which fits the broader plateau seen in the trend line. The list below reflects families in the ranking, not raw document counts.
Arkema France S.A. (Arkema)
Appears in the strongest co-assignee pair in this dataset, filing jointly with GLIMA INNOVATION LTDA across three shared records — the densest collaboration signal found here.
SABIC Global Technologies B.V. (SABIC Global Technologies)
Shows a single co-assignee link with an individual inventor, SOHN SUNGKYUN, distinct from the corporate-to-corporate pairing seen elsewhere in the set.
Johns Manville Corporation (Johns Manville)
Tracked among the named assignees with no filings recorded in the latest year, consistent with the dataset-wide plateau after the 2020 peak.
US filing sits second to Europe
Europe (EPO) leads receiving offices with 12 filings, the United States close behind at 11, and WIPO PCT filings at 9 — a fairly even three-way split rather than concentration in one jurisdiction.
| Assignee | Recent year | YoY |
|---|---|---|
| Azdel, Inc. | 0 | — |
| Johns Manville Corporation | 0 | — |
| VTT Technical Research Centre of Finland Ltd | 0 | — |
| Arkema France S.A. | 0 | — |
| SABIC Global Technologies B.V. | 0 | — |
| GLIMA INNOVATION LTDA | 0 | — |
| General Electric Company | 0 | — |
| Trinseo Europe GmbH | 0 | -100% |
Where to take this analysis
The dataset points to specific next questions for anyone deciding whether to file, license, or design around existing claims in this space.
Check the under-claimed IPC branches
C08F, C09K and C08L77 carry the thinnest record counts in this set. A targeted search inside those subclasses may surface open claim space before committing to a filing strategy.
Explore white space in EurekaTrack the plateau, not just the peak
The 2020 peak followed by a flat 2022 midpoint suggests the compliance driver behind the burst may have passed. Confirm whether new regulatory triggers are forming before assuming renewed filing activity.
Monitor filing trends in EurekaMap the shaping-versus-chemistry split
With B29C and B32B far outweighing C08K and C08L, a formulation-first entrant may face less prior art than a process-first one. Validate this against the specific claims, not just subclass counts.
Compare IPC coverage in EurekaCommon questions on this landscape
In this dataset, the term covers composites built on a thermoplastic matrix — as opposed to thermoset resins — combined with fiber reinforcement and flame-retardant additives or coatings. Claims typically address fire, smoke and toxicity (FST) performance through either the resin formulation, an additive package, or the processing method used to impregnate fiber structures. The representative filing in this set, US20200032012A1, illustrates this pattern by combining a fiber structure with thermoplastic resin particles and a particulate flame retardant in a single panel construction.
The data shows a rise from two filings in 2017 to eight in 2020, followed by a fall to zero at the 2022 midpoint. This shape is consistent with a compliance-driven filing wave, where a regulatory deadline or industry standard prompts a short burst of activity rather than sustained R&D investment. Because publication lags filing by roughly 18 months, the most recent years in the trend are likely undercounted, so some of the apparent drop-off may soften once later filings publish.
B29C (shaping of plastics) and B32B (layered products and laminates) carry the highest record counts in this dataset, at 26 and 19 respectively, indicating that processing and lamination methods are the most heavily claimed aspects. C08K and C08L, covering additives and polymer compositions, sit lower at 12 records each, and C08F and C09K trail further behind at three records apiece. Anyone drafting new claims should check density in the specific subclass they intend to file in, since B29C and B32B are the most occupied.
Very little, based on this dataset — only two co-assignee pairs appear across 41 tracked families. The strongest pairing links Arkema (Arkema France S.A.) with GLIMA INNOVATION LTDA across three shared records, while the second pairing connects SABIC Global Technologies with an individual inventor on a single record. Most filings in this space are held by single assignees rather than joint ventures or research consortia.
This LG Hausys filing, published 2020-01-30, claims a composite built from a woven fiber structure impregnated with thermoplastic resin particles sized 1-50 μm and a particulate flame retardant, plus a thermo-compressed panel made from it. Anyone working with fine-particle thermoplastic impregnation combined with particulate flame retardant in a fiber-woven structure should review this claim scope closely before finalizing a process. It does not appear to block additive-chemistry-first approaches that skip the particle-impregnation route, which is one reason the C08K and C08L branches remain comparatively less crowded.
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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.