Oil Dispersion & Emulsifiable Concentrate Patents: Leaders 2026
- 38.3% of all 7,052 records sit with just five assignees — this field is concentrated at the top, not a wide-open field of small filers.
- Filings fell 44% from a 2021 peak of 480 to 270 in 2024, the last year with a complete publication window.
- 90.5% of records carry an A01N classification while adjacent classes like C05G fertiliser mixtures (3.5%) and A61K medicinal preparations (4.3%) stay thin — a sign of where formulation claims have not yet spread.
Filing growth compares 2021 (480 records) with 2024 (270) — 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 7,052 records in scope (CR5), not by the ranked leaders only.
What this landscape covers
Oil dispersion formulations and emulsifiable concentrates are delivery mechanisms for agrochemical actives, and the patent activity around them concentrates on emulsion stability, solvent selection, surfactant blends and cold storage behaviour rather than on the active ingredients themselves. This dataset spans 7,052 published records filed or published between 2015 and mid-2026, drawn from filings that combine formulation language (oil dispersion, emulsifiable concentrate) with stability and formulation-chemistry terms such as phase separation and emulsification spontaneity.
The picture that emerges is a mature, formulation-chemistry field dominated by a handful of large agrochemical companies, with heavy classification in biocide and pesticide-activity classes and thinner activity in adjacent areas such as fertiliser mixtures and medicinal preparations.
Filing trends and technology composition
Publication lags filing by roughly 18 months, so the last one to two years in any chart understate real filing activity; treat 2024 as the most recent complete year.
A 2021 peak followed by a real decline
Filings rose from 166 in 2017 to a peak of 480 in 2021, then fell 44% to 270 by 2024 — the last year the dataset can treat as complete. Years after 2024 will keep filling in as publications catch up, so the apparent drop into 2025-2026 should not be read as a continued slide until later data confirms it.
Concentrated in biocide and pesticide-activity classes
A01N (biocides/agrochemicals) appears on 90.5% of all 7,052 records and A01P (pesticide activity) on 29.8%, confirming this is fundamentally a crop-protection formulation field. C07D heterocyclic compounds reach 32.6%, reflecting active-ingredient chemistry claimed alongside the formulation. Fertiliser mixtures (C05G, 3.5%), medicinal preparations (A61K, 4.3%) and peptide/protein chemistry (C07K, 2.7%) remain comparatively thin, each sitting under claimed space that has not been heavily built out.
Shares are the percentage of the 7,052 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Oil Dispersion and Emulsifiable Concentrates with Eureka
This page is one run against one query. Ask Eureka your own question about oil dispersion and emulsifiable concentrates and every answer comes back with the patent numbers behind it.
Try EurekaRepresentative and most-cited filings
Self-emulsifiable concentrate (US20260096562A1, Biotalys NV, 2026-04-09)
The filing describes a self-emulsifiable concentrate built around a protein-containing composition derived from microbial fermentation, including a bioactive protein such as a VHH, positioned for use in agriculture as a crop protection product.Abstract text drawn from the published filing.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | WO2003024222A1 | Anthranilamide arthropodicide treatment | 1,349 |
| 2 | WO2003015519A1 | Arthropodicidal anthranilamides | 993 |
| 3 | WO2003015518A1 | Method for controlling particular insect pests by applying anthranilamide compounds | 842 |
| 4 | WO2015038503A1 | Heterocycle-substituted bicyclic azole pesticides | 462 |
| 5 | WO2002089579A1 | Pesticide composition comprising malononitrile compounds | 335 |
| 6 | EP0326330A2 | Quinoline, quinazoline, and cinnoline fungicides | 280 |
| 7 | WO2020097012A1 | Substituted tolyl as fungicides | 246 |
| 8 | WO2020056090A1 | Fungicidal halomethyl ketones and hydrates | 238 |
| 9 | EP0302389A2 | Alpha-unsaturated amines, their production and use | 231 |
| 10 | EP0375316A1 | Macrolide compounds | 178 |
Citation counts favour older filings that have had more time to accumulate citations within the searched corpus; treat them as a signal of influence, not of current relevance.
Each row carries its publication number; clicking a row searches Eureka by that number.
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Three patterns stand out once filing volume, concentration and technology composition are read together.
Leadership sits with a small group
The top five assignees combined account for 38.3% of all 7,052 records in scope, and the top ten reach 50.8%. That is a field where a handful of large agrochemical companies hold a majority stake in the published art, leaving a long tail of single- or few-filing entrants below them.
Post-peak filing activity is down, not dead
Filings peaked at 480 in 2021 and fell 44% to 270 by 2024. Recent-year momentum figures for individual leading assignees also show declines, but the most recent one to two years are still filling in due to publication lag and should not be read as the field's current trajectory.
Formulation claims cluster tightly around biocide activity
A01N (biocides/agrochemicals) appears on 90.5% of all records, while fertiliser-mixture classification (C05G) sits at just 3.5%. Formulation techniques proven in crop protection have not been heavily re-claimed against fertiliser or medicinal-preparation contexts.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to oil dispersion and emulsifiable concentrates, with the prior art for and against each one.
Who is filing, and where the openings sit
Filing leadership is concentrated among a small number of established agrochemical companies, but recent-year momentum has cooled across the board, and several sub-areas of formulation chemistry remain lightly claimed.
A single company holds a clear lead
The leading assignee holds 1,069 records, well ahead of the fifth-place company at 295 and the tenth at 126 — a steep drop-off that marks this as a leader-plus-tail field rather than an evenly spread one.
Even active filers are pulling back
Recent-year momentum for the most active assignees shows year-over-year declines across the board, with several leading companies recording zero filings in the latest year. Read cautiously: publication lag means the latest year is still incomplete for everyone.
Cross-filing is limited and concentrated
Only ten co-assignee pairs appear in the dataset, and the strongest of them link entities that are effectively corporate affiliates rather than independent collaborators, suggesting most formulation know-how in this space is filed solo rather than jointly developed.
| Assignee | Recent year | YoY |
|---|---|---|
| Syngenta Crop Protection AG | 4 | -64% |
| FMC Corp | 3 | -80% |
| Corteva Agriscience LLC | 1 | -86% |
| E.I. du Pont de Nemours & Co | 0 | — |
| Sumitomo Chemical Co., Ltd. | 0 | — |
| Dow AgroSciences LLC | 0 | — |
| BASF SE | 0 | -100% |
| Syngenta Participations AG | 0 | — |
Where to take this analysis
The dataset points to a concentrated but cooling field with specific pockets of open claim space. The next steps depend on whether the goal is freedom-to-operate, portfolio strategy, or scouting for underclaimed formulation chemistry.
Map freedom-to-operate against the leader's portfolio
With one assignee holding 1,069 records, a targeted claim-scope review of that portfolio is likely more useful than a broad novelty search before committing to a specific solvent or surfactant system.
Explore in EurekaTest claims against the under-claimed branches
Fertiliser-compatible and protein-based dispersion approaches show thin classification density relative to the crop-protection core, which may leave room for narrowly drafted claims that would be crowded elsewhere.
Explore in EurekaCommon questions about this landscape
In patent drafting, an oil dispersion typically describes a formulation where solid or semi-solid active ingredient particles are suspended in an oil-based continuous phase, while an emulsifiable concentrate is a liquid formulation designed to form an emulsion spontaneously when diluted with water at the point of use. Claims in this dataset frequently address both because the underlying formulation problems overlap: emulsion stability, solvent selection, surfactant blend ratios and behaviour under cold storage. Practitioners drafting in this space should expect examiners to treat the two formulation types as closely related prior art for stability and surfactant claims, even though the physical form of the product differs.
The ranked assignee list shows a clear leader with 1,069 records, well ahead of the fifth-ranked company at 295 and the tenth at 126, and the top five assignees together account for 38.3% of all 7,052 records in scope. This is a field led by a small number of large, established agrochemical companies rather than a broad field of small independent filers. That said, recent-year momentum figures show even the most active filers pulling back year over year, which should factor into any competitive read of the space.
Filings rose steadily from 166 in 2017 to a peak of 480 in 2021, then declined 44% to 270 by 2024, which is the most recent year the dataset can treat as complete. Because patent publication lags filing by roughly 18 months, the apparent further drop in 2025 and 2026 numbers is partly an artefact of incomplete data rather than a confirmed continued decline. Anyone tracking this trend should wait for later data cuts before concluding the field is still shrinking past 2024.
Classification density is heavily weighted toward core crop-protection categories: 90.5% of the 7,052 records carry an A01N biocide classification. Adjacent branches such as fertiliser mixtures (C05G, 3.5% of records), medicinal preparations (A61K, 4.3%) and peptide or protein chemistry (C07K, 2.7%) are comparatively thin, suggesting formulation techniques well-established in crop protection have not been heavily re-claimed in those adjacent contexts. These lower-density branches are reasonable starting points for scouting narrowly drafted claims.
The dataset finds only 10 co-assignee pairs across 7,052 records, and the strongest of these link corporate affiliates within the same corporate family rather than independent joint development partners. This indicates most formulation patents in oil dispersion and emulsifiable concentrate technology are filed by a single assignee rather than developed through cross-company collaboration. Readers looking for joint-venture or licensing signals in this space should not expect to find much evidence of it in the co-filing pattern itself.
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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.