Antimicrobial Textile Coating Patents: Leaders & White Space 2026
- 257 families since 2015, with filing peaking at 25 in 2020 and no return to that level since — growth here is flat, not accelerating.
- A01N biocide chemistry accounts for half the corpus, while coating-specific and sterilising-process subclasses each sit at roughly a quarter that volume, marking the open branches.
- Two foundational documents (281 and 182 citations) anchor most of the downstream silver-ion composition claims, making that route the hardest to design around.
Filing growth compares 2021 (24 records) with 2024 (7) — 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 257 records in scope (CR5), not by the ranked leaders only.
A mature biocide core with a long, thinner claim tail
Antimicrobial textile technical coating covers two overlapping problems: the active chemistry that kills or inhibits microorganisms, and the process that binds it durably to a fibre or fabric surface. Patent filing in this space has, since 2015, concentrated heavily on the first problem — silver and other biocide compositions classified under A01N make up roughly half of the 257 families in this dataset — while process and product-framing claims around coatings, sterilisation and fibre integration sit further behind.
Filing activity rose to a peak of 25 records in 2020 and has since settled near the 2022 midpoint of 9, a pattern more consistent with a maturing core than an expanding one. Two heavily cited foundational documents anchor much of the downstream silver-ion composition art, which narrows the room for a genuinely new composition claim but leaves process, delivery and durability claims comparatively open.
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Filing trends and technology composition
The dataset spans 257 published families from 2015 through mid-2026, with filing activity concentrated in a handful of IPC subclasses tied to biocide chemistry and textile finishing.
A peak in 2020, then a plateau
Filings rose from 4 in 2017 to a peak of 25 in 2020, then settled near the 2022 midpoint of 9 — a flat-to-declining pattern rather than sustained growth. The most recent year is partial and will understate true 2025-2026 activity once publication catches up.
Biocide chemistry dominates the IPC mix
A01N (biocides/agrochemicals) accounts for 130 of the records, roughly half the corpus, with D06M (textile chemical treatment) a distant second at 85. Polymer, fibre and coating-specific subclasses (C08K, D01F, A61L, C08L, A61K, C09D) each sit in the 31-42 range, indicating supporting rather than dominant claim territory.
Shares are the percentage of the 257 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Antimicrobial Textile Technical Coating with Eureka
This page is one run against one query. Ask Eureka your own question about antimicrobial textile technical coating and every answer comes back with the patent numbers behind it.
Try EurekaThe documents shaping this claim space
Method of making an antimicrobial textile (US20200115845A1)
A method of making an antimicrobial textile comprising TiO2 nanoparticles is described. The TiO2 nanoparticles are immobilized by first treating a textile with a base, and then contacting with TiO2 nanoparticles in a solution of an alcohol and acid. The textile may be subsequently irradiated with UV light prior to use. The antimicrobial textile shows high effectiveness against the growth and proliferation of microorganisms transmitted within indoor environments.Filed by Imam Abdulrahman Bin Faisal University, published 2020-04-16. Claims a specific base-pretreatment and acid/alcohol deposition sequence rather than TiO2 antimicrobial textiles broadly.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US5503840A | Antimicrobial compositions, process for preparing the same and use | 281 |
| 2 | US6897349B2 | Silver-containing compositions, devices and methods for making | 182 |
| 3 | WO2009064767A2 | Bactericidal nanofibers, and methods of use thereof | 62 |
| 4 | WO2014082023A1 | Head mounted display | 59 |
| 5 | WO1995010940A1 | Improved antimicrobial composition | 57 |
| 6 | US6037057A | Sheath-core polyester fiber including an antimicrobial agent | 54 |
| 7 | US20100285081A1 | Bactericidal Nanofibers, and Methods of Use Thereof | 39 |
| 8 | US20060068024A1 | Antimicrobial silver halide composition | 34 |
| 9 | US20130158635A1 | Pain management system | 30 |
| 10 | WO2006049478A1 | Anti-microbial fiber products | 29 |
Citation counts are drawn from within this searched corpus and favour older filings; treat them as a measure of influence on later claims, not of present-day 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 filing pattern actually indicates
Three signals stand out once the raw counts are read against each other: where claim density has settled, which routes are still being actively worked, and how concentrated the underlying chemistry really is.
Plateau after the 2020 peak
Filing volume rose steadily to a 2020 peak of 25 records, then dropped back toward the 2022 midpoint of 9, without recovering. Combined with the 18-month publication lag typical of patent data, the most recent years should be read as a partial, not a declining, signal.
Half the corpus sits in one IPC bucket
A01N (biocides/agrochemicals) alone accounts for roughly half the dataset, with D06M textile treatment a distant second at 85. The remaining six subclasses each sit between 31 and 42 records, suggesting they support rather than lead the core claim strategy.
Two old patents anchor most of the field
US5503840A (281 citations) and US6897349B2 (182) sit well above the rest of the most-cited table, indicating that later silver-ion antimicrobial composition claims consistently trace back to a narrow set of foundational filings rather than a diverse set of independent inventions.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to antimicrobial textile technical coating, with the prior art for and against each one.
Who is filing, and where the gate sits
No single assignee dominates this corpus; instead, filing is distributed across universities, chemical suppliers and interior/seating manufacturers, with a small number of co-assignee clusters showing joint development.
A distributed field, not a concentrated one
With 257 families and only 10 recorded co-assignee pairs, most filings come from single entities working independently rather than joint ventures, and no single filer's volume dominates the overall ranking.
Seating-industry entities cluster together
The strongest co-assignee links in the dataset are between seating and interior-supply entities, each pairing appearing 7 times, pointing to aircraft or automotive interior applications as a specific commercial use case for these coatings.
Established filers have gone quiet
Several assignees with historical filings, including large chemical suppliers, show zero activity in the most recent recorded year. That does not necessarily mean exit from the space, given the typical 18-month publication lag, but it does mark a shift in visible activity toward newer or smaller filers.
| Assignee | Recent year | YoY |
|---|---|---|
| ARGENLAB GLOBAL | 0 | — |
| Ascend Performance Materials | 0 | -100% |
| E.I. du Pont de Nemours and Company (USA) | 0 | — |
| Stellenbosch University | 0 | — |
| IMAM ABDULRAHMAN BIN FAISAL UNIV | 0 | — |
| BASF SE | 0 | — |
| Cajet Optoelectronics (Hong Kong) Co., Ltd. | 0 | — |
| ADVANSOURCE BIOMATERIALS CORP | 0 | — |
Where to take this analysis next
The filing data points to a settled chemistry core and a thinner, more open process layer. Turning that into a filing or licensing decision means checking specific claims against the branches identified above.
Map claim scope against the foundational citations
Before drafting a composition claim in the A01N space, check it directly against US5503840A and US6897349B2, the two most-cited documents in this corpus, to see how much of the chemistry they already cover.
Compare claims in EurekaTrack recent-year filers, not just historical volume
Several large historical assignees show zero filings in the latest year. Identify which smaller or newer entities are filing now to understand where competitive activity is actually moving.
Run an assignee momentum checkTest process claims in the under-claimed subclasses
C09D, A61L and A61K each carry a fraction of the A01N record count. A durability- or delivery-specific process claim in one of these areas is less likely to face the densest prior art.
Explore white space in EurekaCommon questions on antimicrobial textile coating patents
Filing is spread across a long tail of universities, chemical companies and seating/interior suppliers rather than dominated by one obvious leader. The strongest co-filing clusters in this dataset involve seating-related entities filing jointly, while several established chemical companies show foundational but currently dormant filings. Checking recent-year momentum matters more than total historical count, since some large historical filers show zero activity in the latest recorded year.
Silver-based approaches are filed predominantly under A01N (biocides/agrochemicals), the largest subclass in this dataset at 130 records, and tend to claim the active compound or its release mechanism. Quaternary ammonium finishes more often appear alongside D06M (textile chemical treatment) claims, which cover how the finish is applied and bonded to fibre rather than the antimicrobial agent itself. In practice, many filings combine both angles — an active-compound claim plus a process claim for durable attachment to textile substrates.
Filing volume peaked at 25 records in 2020 and has not returned to that level since, with the 2022 midpoint sitting at 9 — a flat-to-declining trend rather than continued growth. Because publication typically lags filing by about 18 months, the last one to two years in any dataset will always look lower than they eventually turn out to be. Even accounting for that lag, the absence of a rebound toward the 2020 peak suggests the core chemistry claims are maturing rather than expanding rapidly.
US20200115845A1, filed by Imam Abdulrahman Bin Faisal University, claims a specific process for immobilizing TiO2 nanoparticles on textile using a base pre-treatment followed by contact with TiO2 in an alcohol-acid solution, with optional UV irradiation. It does not block TiO2-based antimicrobial textiles as a general concept — only that particular sequence of surface preparation and nanoparticle deposition. Alternative immobilization chemistries, such as sol-gel binding without the base pre-treatment step, fall outside its literal claim scope.
The A01N biocide-composition space, anchored by heavily cited foundational patents including US5503840A and US6897349B2, is the most crowded territory and the hardest to design around cleanly. Smaller subclasses such as C09D (coatings, paints and inks), A61L (sterilising and disinfecting processes) and A61K (medicinal-preparation framing) each carry roughly a quarter of the A01N record count, indicating more open claim space for process- or delivery-specific inventions. A first claim built around a durability, release-rate or application-method limitation in one of these smaller subclasses is less likely to collide with the deepest existing prior art.
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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.