UV-Curable Coating Resins Patents: Who Leads, Where the Gaps Are 2026
- 37.8% of all 1,329 records sit with just five assignees, so freedom-to-operate work has to start with a small set of portfolios, not a broad field scan.
- Filing peaked in 2020 at 57 and has trended flat to down since, with the 2022 midpoint at 36 — this is a maturing claim space, not a growing one.
- C09D coatings claims dominate at 37.1% while polymer processing (C08J, 11.1%) and coating processes (B05D, 12.3%) carry noticeably lighter density.
What this landscape covers
UV-curable coating resins sit at the intersection of formulation chemistry and applied coating process: oligomer and monomer design on one side, cure behaviour, adhesion and shrinkage control on the other. This landscape draws on 1,329 published records filed or published between 2015 and the 2026 data cut-off, indexed against titles and claims referencing UV curable coatings, radiation curable resins and UV curable oligomers, cross-referenced against terms for oxygen inhibition, shrinkage, adhesion, LED UV curing, migration and matting. The scope favours documents that name a specific failure mode or cure mechanism rather than generic coating claims.
Because publication typically lags filing by roughly 18 months, the most recent year in any trend line understates real activity — 2026 in particular should be read as incomplete, not as a genuine drop to zero. Patent families, rather than raw document counts, are the fairer unit for judging how much distinct technology is really being claimed, since families neutralise repeated continuation filings and multi-jurisdiction duplicates of the same invention.
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Filing trend and technology composition
Two views of the same 1,329 records: how filing activity has moved year over year, and which IPC subclasses carry the claim density.
Filing trend, 2017–2026
Filings rose to a peak of 57 in 2020, held near the 2022 midpoint of 36, and have declined since — consistent with a field where core cure-chemistry claims are largely staked out and filers are now defending or extending existing positions rather than opening new ground. The 2026 figure of 0 reflects the publication lag, not a stop in filing.
IPC subclass composition
C09D (coatings, paints & inks) leads at 37.1% of the 1,329 records, followed by C08F addition polymers at 29.6% and B32B layered products at 28.5%. Because a single record can carry several IPC classes, these shares sum to well over 100% — the useful signal is the relative density across subclasses, not an exhaustive partition. B05D coating processes (12.3%) and C08J polymer processing (11.1%) sit noticeably lower, indicating claim activity has concentrated more on resin and layer composition than on process engineering.
Shares are the percentage of the 1,329 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on UV-Curable Coating Resins with Eureka
This page is one run against one query. Ask Eureka your own question about uv-curable coating resins and every answer comes back with the patent numbers behind it.
Try EurekaFoundational prior art and a recent representative filing
UV curable coating compositions containing aliphatic urethane acrylate resins (US20250257238A1)
Filed by Red Spot Paint & Varnish and published August 2025, this filing describes a two-component aliphatic urethane acrylate system: one component built from an aliphatic polyisocyanate reacted with a hydroxyl-functional acrylate, the second from a multifunctional acrylate combined with an aliphatic urethane based on an alkyl carbomoncycle diisocyanate. The stated aim is a coating with improved hardness, scratch and chemical resistance, and weatherability, targeted at automotive applications.Abstract text drawn directly from the published filing.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US4455205A | UV Curable polysiloxane from colloidal silica, methacryloyl silane, diacrylate, resorcinol monobenzoate and p… | 391 |
| 2 | US4491508A | Method of preparing curable coating composition from alcohol, colloidal silica, silylacrylate and multiacryla… | 309 |
| 3 | US5870224A | Lenticular sheet, rear-projection screen or TV using the same, and fabrication method for said lenticular she… | 194 |
| 4 | US20010019649A1 | Fiber optic cable having a component with an absorptive polymer coating and a method of making the cable | 185 |
| 5 | US20050136252A1 | UV curable coating compositions and uses thereof | 132 |
| 6 | US5903391A | Optical film | 88 |
| 7 | US6689463B2 | Secondary coating composition for optical fibers | 85 |
| 8 | JP1995290652A | Reflection preventing film having excellent optical characteristics and production thereof | 84 |
| 9 | US6140386A | Aqueous coating compositions, methods for making same and uses thereof | 82 |
| 10 | US9708442B1 | Liquid, hybrid UV/vis radiation curable resin compositions for additive fabrication | 81 |
Citation counts inside a searched corpus favour older documents that have had more years to accumulate citations — read these as markers of foundational influence, 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 mean for a filing or FTO decision
Three patterns worth acting on before drafting new claims or scoping freedom-to-operate in this space.
A small group holds more than a third of the field
The top five assignees combined account for 503 of the 1,329 records in scope — 37.8% of the total. The leader alone holds 201 records, well ahead of fifth place at 53. Any clearance search in this space should start with these portfolios rather than a broad assignee scan.
Filing has cooled since its 2020 peak
Activity climbed to 57 filings in 2020 and has since settled near or below the 2022 level of 36. Combined with the concentration at the top, this points to a field where core cure-chemistry and adhesion claims are largely staked out, and later entrants are filing around, not into, the centre.
Claim density sits on formulation, not process
C09D coatings and inks (37.1%) and C08F addition polymers (29.6%) carry the heaviest claim density, while B05D coating processes (12.3%) and C08J polymer processing and solutions (11.1%) are comparatively lighter. Process-side claims — cure equipment, line integration, in-process monitoring — look less crowded than the resin chemistry itself.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to uv-curable coating resins, with the prior art for and against each one.
Who holds the ground, and where the gate sits
The ranked leaders span coatings majors, specialty resin suppliers and imaging/print companies, with the strongest co-filing relationships clustered around a handful of recurring pairs.
A single leader well ahead of the pack
The top-ranked assignee holds 201 of the 1,329 records in scope, nearly four times the fifth-place total of 53. That gap suggests a deliberate, sustained filing programme rather than opportunistic patenting.
Co-assignee links concentrate around a few recurring partners
Ten co-assignee pairs appear in the data, with the strongest pairings recurring across multiple filings — a signal of ongoing joint development or licensing relationships between specific resin suppliers and coating formulators rather than one-off collaborations.
Recent-year activity has gone quiet at the top
Several of the leading assignees show zero filings in the latest tracked year, including a -100% year-on-year change for at least one. This is partly the publication-lag effect described above, but it is consistent enough across leaders to suggest a genuine pause in new filing rather than a reporting artefact alone.
| Assignee | Recent year | YoY |
|---|---|---|
| Dai Nippon Printing Co., Ltd. | 0 | — |
| DSM IP Assets B.V. | 0 | — |
| JSR Corporation | 0 | — |
| Toppan Holdings Inc. | 0 | -100% |
| Akzo Nobel Coatings International B.V. | 0 | — |
| Red Spot Paint & Varnish Co., Inc. | 0 | — |
| DSM | 0 | — |
| TOPPAN INC | 0 | — |
Where to take this
Two directions depend on what you need next: a narrower legal read, or a broader technical scan.
Run a freedom-to-operate check against the concentrated top five
With 37.8% of records held by five assignees, a targeted FTO review of their granted claims — rather than a field-wide search — is the faster path to a usable answer for a specific formulation or cure process.
Explore assignee portfolios in EurekaScope claims in the lighter-density process classes
B05D coating process and C08J polymer processing carry noticeably less claim density than C09D and C08F, which may leave more room for process-side or equipment-integration claims tied to cure control.
Run a white-space search in EurekaCommon questions on this landscape
The dataset ranks 100 assignees by record count, and the field is notably top-heavy: the leader holds 201 of the 1,329 records in scope, compared with 53 at fifth place and 27 at tenth. The top five combined account for 37.8% of all records, so a small group of coatings majors, resin suppliers and imaging companies controls a disproportionate share of the documented claim space. Any competitive review should treat this small group as the primary reference set rather than surveying the full ranked list evenly.
Filing activity peaked in 2020 at 57 records and has trended flat to down since, with the 2022 midpoint sitting at 36. That pattern, combined with the concentration among a handful of leading assignees, points to a maturing rather than expanding technology space. The apparent drop to zero in 2026 is a publication-lag artefact — publication typically trails filing by around 18 months — rather than evidence that filing has actually stopped.
IPC composition shows C09D (coatings, paints and inks) as the densest class at 37.1% of the 1,329 records, followed by C08F addition polymers at 29.6% and B32B layered products at 28.5%. Condensation polymers (C08G, 21.4%) and polymer compositions (C08L, 14.0%) follow behind. These shares overlap because a single record can carry multiple IPC classes, but the ranking is a reliable guide to where formulation and layered-structure claims are thickest.
Process-oriented classes carry noticeably lighter density than the resin-chemistry classes: B05D coating processes sit at 12.3% of records and C08J polymer processing and solutions at 11.1%, well below C09D's 37.1%. Sub-areas such as LED-specific photoinitiator packages, in-line oxygen-inhibition sensing during cure, and low-migration chemistry for food-contact substrates show comparatively light documented claim activity relative to the core formulation classes. That does not guarantee an open path — it means the publicly claimed density is lower, which is a reasonable starting point for a more targeted novelty search.
US20250257238A1, published August 2025 by Red Spot Paint & Varnish, claims a two-component aliphatic urethane acrylate system aimed at automotive coatings with improved hardness, scratch resistance, chemical resistance and weatherability. One component is built from an aliphatic polyisocyanate reacted with a hydroxyl-functional acrylate; the second combines a multifunctional acrylate with an aliphatic urethane based on an alkyl carbomoncycle diisocyanate. The claims are specific to that two-component ratio and chemistry rather than to UV-curable urethane acrylates generally, which narrows — but does not eliminate — the risk of overlap for adjacent formulations.
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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.