Alkyd Resins Patents: Top Companies & Filing Trends 2026
- Filing has cooled since 2017. the peak year on record with 83 filings, against just 4 in the most recent (partial) year — publication lag means the last year or two always understates true activity.
- Coatings claims dominate the field. C09D (coatings, paints & inks) touches 81.5% of the 2,142 records in scope, far ahead of condensation-polymer chemistry at 35.7%.
- Leadership is concentrated but not locked down. the top 5 assignees account for 18.5% of all records and the top 10 for 26.9%, leaving a long tail of single- and few-filing entrants across the ranked leaders.
What the alkyd resin patent record shows
Alkyd resins sit at the intersection of coatings chemistry and polymer science, and the patent record reflects that split. Filings in scope run from 2015 through the 2026 cut-off, with search terms anchored on oil length, drying speed, yellowing, bio-based feedstock content, hybrid systems and VOC reduction — the technical levers that separate a workable formulation from a marginal one. The bulk of activity classifies under coatings and paints rather than pure polymer synthesis, which tells you where the commercial pressure sits: formulators, not monomer chemists, are driving the filing.
Filing volume peaked in 2017 and has declined toward the data cut-off, with the most recent year necessarily undercounted because publication typically lags filing by around eighteen months. Reading the trend as flat-to-declining rather than as a cliff is the safer interpretation until later years catch up in the record.
Filing trend and technology composition
Two views of the same 2,142 records: how filing volume moved year over year, and which IPC subclasses carry the claims.
Filing trend, 2017-2026
Filings peaked at 83 in 2017 and eased toward the middle of the range, with 60 recorded at the 2022 midpoint before continuing to soften into single digits by the 2026 cut-off. Treat the final year or two as a floor, not a ceiling, given publication lag.
IPC subclass composition
C09D (coatings, paints & inks) covers 81.5% of records, with C08G (condensation polymers) at 35.7% and C08L (polymer compositions) at 18.6% forming the next tier. Because records can carry multiple IPC classes, these shares sum to more than 100% of the 2,142-record base.
Shares are the percentage of the 2,142 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Alkyd Resins with Eureka
This page is one run against one query. Ask Eureka your own question about alkyd resins and every answer comes back with the patent numbers behind it.
Try EurekaRepresentative and most-cited filings
Air-drying alkyd resin and an emulsion thereof (AU1994073915A1, DSM N.V.)
The invention relates to an emulsion comprising an air-drying alkyd resin dispersed in water having an oil length between 20 and 90%. The alkyd emulsion is stabilized by salt groups which are chemically attached to the alkyd resin and which are salts of acidic groups having a pKa less than about 3. The invention also discloses the preparation of these alkyd resins, as well as hybrid emulsions of alkyd and acrylate resins.Filed by DSM N.V.; one of the earliest-dated records in the dataset and a frequent citation anchor for later water-borne alkyd work.
View full filing| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US6579932B1 | Aqueous coating composition comprising a mixture of polyurethane dispersions | 99 |
| 2 | US6369135B1 | Water-borne alkyd coatings by miniemulsion polymerization | 77 |
| 3 | US6166150A | Process for preparing an aqueous dispersion of a polyacrylate-modified polyurethane-alkyd resin and the use o… | 73 |
| 4 | US6627700B1 | Aqueous dispersions of acrylate modified alkyd resins and use thereof | 72 |
| 5 | WO1995002019A2 | Air-drying alkyd resin and an emulsion thereof | 71 |
| 6 | EP0600546A1 | Binder composition for powder paints | 66 |
| 7 | WO2012005645A1 | Alkyd resin | 65 |
| 8 | US4311623A | Blue-gray low infrared emitting coating | 60 |
| 9 | US6887909B2 | Processes for producing aqueous alkyd resin dispersions | 59 |
| 10 | US4420575A | Water reducible aerosol paints | 54 |
Citation counts favour older filings within the searched corpus; treat them as a signal of influence rather than of current commercial relevance.
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Three patterns in the data matter more than the raw counts: where claim density sits, how concentrated ownership is, and what the citation record actually favours.
Coatings claims crowd the space
Four in five records in scope classify under coatings, paints and inks, meaning formulation and application claims are the most heavily occupied territory. Condensation-polymer chemistry (C08G, 35.7%) is the next-densest layer, but well behind.
Momentum has cooled from its 2017 peak
Volume ran flat-to-declining from a 2017 high through a 2022 midpoint of 60, down to single digits by the 2026 cut-off. The last one to two years are understated by publication lag and should not be read as a hard stop.
Concentrated at the top, long tail beneath
The five leading assignees account for 18.5% of all 2,142 records, and the top ten for 26.9%. That leaves the majority of filings spread across a long tail of the ranked leaders, many with only a handful of families each.
Filing offices skew toward Asia and the US
China leads receiving-office volume at 434, ahead of Japan (411) and the United States (284), with the UK, EPO and WIPO/PCT routes each in the low hundreds. That spread suggests regional formulation markets rather than a single dominant jurisdiction.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to alkyd resins, with the prior art for and against each one.
Who is filing, and where the gaps sit
The ranked leaders span coatings majors and specialty resin makers, with ownership concentrated at the top but far from locked down beneath it.
One filer sits well ahead of the field
The top-ranked assignee holds 139 records, comfortably ahead of fifth place at 42 and tenth place at 33 — a steep drop-off that marks a genuine leader rather than a crowded first tier.
Co-assignment is rare and mostly intra-group
Only ten co-assignee pairs appear in the data, and the strongest pair by far links two affiliates of the same corporate group. Cross-company co-filing outside group structures is close to absent.
Historical leaders show no latest-year output
Several of the assignees with the largest historical portfolios show zero filings in the latest year in the dataset, consistent with the broader decline from the 2017 peak rather than any single company's exit.
| Assignee | Recent year | YoY |
|---|---|---|
| DIC Corporation | 0 | — |
| Kansai Paint Co., Ltd. | 0 | — |
| Imperial Chemical Industries Ltd. | 0 | — |
| DSM IP Assets B.V. | 0 | — |
| Akzo Nobel N.V. | 0 | — |
| Allnex Austria GmbH | 0 | — |
| Nippon Paint Co., Ltd. | 0 | — |
| Dai Nippon Toryo Co., Ltd. | 0 | -100% |
Where to take this analysis
The dataset points to a mature, coatings-dominated field with a concentrated top tier and a thinning filing trend — the open questions are about specific claim boundaries and timing.
Map the white space claim by claim
The under-claimed branches above are starting points, not conclusions. Checking claim scope on the leading assignee's portfolio against a specific formulation route is the next step before filing.
Explore white space in EurekaTrack the leader's recent activity
A 139-record leader with a steep drop to the rest of the field is worth monitoring directly for continuations, oppositions and abandonments that might reopen claim space.
Set up assignee monitoring in EurekaCorroborate the trend with later filings
Because publication lags filing by about eighteen months, the apparent decline since 2017 deserves a re-check once 2025-2026 filings are more fully published.
Run a fresh search in EurekaCommon questions about alkyd resin patents
One assignee leads the ranked field with 139 records, well ahead of fifth place at 42 and tenth place at 33. That gap indicates a genuine leader rather than a tightly bunched top tier. Below the top ten, ownership spreads across a long tail of companies with only a handful of filings each, so a full freedom-to-operate check needs to look well beyond the largest names.
The trend is flat to declining. Filings peaked at 83 in 2017, eased to 60 by the 2022 midpoint, and dropped to single digits by the 2026 data cut-off. Because patent publication typically lags filing by around eighteen months, the most recent one to two years understate true activity, so the decline is real but likely less steep than the raw numbers suggest.
The large majority of records, 81.5% of the 2,142 in scope, classify under coatings, paints and inks (IPC C09D), reflecting a formulation-driven field. Condensation polymer chemistry (C08G, 35.7%) and general polymer compositions (C08L, 18.6%) form the next layers beneath. Since a single record can carry several IPC codes, these shares add up to more than 100% and should not be read as mutually exclusive categories.
China leads receiving-office volume at 434 filings, followed by Japan at 411 and the United States at 284, with the United Kingdom, the European Patent Office and the WIPO/PCT route each contributing smaller but meaningful volumes. That geographic spread points to several active regional coatings markets rather than one dominant jurisdiction, which matters for deciding where to file a new application.
Rarely. The dataset identifies only ten co-assignee pairs, and the strongest of these links two affiliates within the same corporate group rather than two independent companies. Genuine cross-company collaboration on filings is close to absent in this field, suggesting most R&D and IP strategy here is pursued in-house rather than through joint development deals.
The filing, assigned to DSM N.V., covers an air-drying alkyd resin emulsion with oil length between 20 and 90%, stabilised by salt groups attached to the resin with a pKa below about 3, and it also discloses hybrid alkyd-acrylate emulsions. It is one of the earlier-dated records in this dataset and a frequent citation anchor for later water-borne alkyd work, so it is useful as a reference point for freedom-to-operate analysis on water-reducible and hybrid emulsion routes even though its practical relevance depends on current legal status in each jurisdiction.
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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.