Lubricant Additive Packages Patents: Top Companies & Trends 2026
- Filing activity has flattened since its 2021 peak. 56 families filed that year against 51 in 2017, with the 2022 midpoint at 37 — the pace since is closer to decline than growth once the reporting lag is accounted for.
- C10N property claims run almost alongside the base class. 777 of 1,535 records also carry a C10N lubricant-property IPC code, meaning most filers are claiming a functional property (index, stability, friction behaviour) rather than a bare composition.
- The most-cited prior art is decades old. The highest-cited record in this corpus, US4956122A, still draws more citations than any filing from the last ten years — a sign the foundational claim space was staked out early and newer filings build narrowly on top of it.
What this landscape covers
Lubricant additive packages sit at the intersection of formulation chemistry and mechanical performance: anti-wear agents, detergent-dispersants, viscosity index improvers, oxidation inhibitors and friction modifiers combined into a single treat rate for engine or industrial oils. This dataset tracks 1,535 patent families filed against IPC classes C10M133, C10M159 and C10M169 between 2015 and 2026, restricted to documents whose claims or descriptions name anti-wear, detergent-dispersant, viscosity index improver, oxidation stability or friction modifier chemistry directly.
Because publication typically lags filing by around eighteen months, the most recent one or two years in any trend line will understate true filing activity. The pattern below should be read with that discount in mind, particularly for 2025 and 2026.
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Filing trend and technology mix
The filing curve and the IPC composition together show a field that grew through the late 2010s, peaked in 2021 and has since plateaued — while formulation claims increasingly reach into adjacent classes for organo-metallic chemistry and polymer science rather than staying inside pure lubricant composition codes.
A peak in 2021, then a flattening
Filings rose from 51 in 2017 to a peak of 56 in 2021, sat at 37 by the 2022 midpoint, and have trailed off toward single digits in the partial 2026 count. Read alongside the publication lag, this looks like a maturing filing cadence rather than a collapsing one, but it is not a growth market on this evidence.
C10N and organo-metallic chemistry dominate the periphery
777 records carry a C10N lubricant-property code alongside the C10M base class, confirming that most claims are written around a measurable performance outcome. Smaller but consistent counts in C07F (112), C10L (95), C07C (80) and C08F (71) show additive package claims regularly reach into organo-metallic compounds, fuel chemistry and addition polymers — the chemistry underlying viscosity index improvers and friction modifiers rarely stays inside a single IPC silo.
Shares are the percentage of the 1,535 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Lubricant Additive Packages with Eureka
This page is one run against one query. Ask Eureka your own question about lubricant additive packages and every answer comes back with the patent numbers behind it.
Try EurekaThe citation backbone and a recent representative claim
Silicone functionalized viscosity index improver (US20210207052A1)
A multi-functional olefin copolymer viscosity index improver and lubricating oil composition that provides improved viscometric properties while helping reduce low speed pre-ignition events. The viscosity index improver is silicone functionalized, built on an acylated olefin copolymer carrying aminosilane or aminosiloxane pendant or side groups.Filed by Afton Chemical, published 2021-07-08 — illustrates how viscosity index improver claims are now routinely paired with a named engine failure mode (low speed pre-ignition) rather than a viscometric property alone.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US4956122A | Lubricating composition | 778 |
| 2 | US6559105B2 | Lubricant compositions containing ester-substituted hindered phenol antioxidants | 701 |
| 3 | WO2004007653A2 | Slow release lubricant additives gel | 653 |
| 4 | US6107258A | Functionalized olefin copolymer additives | 578 |
| 5 | WO2000014187A2 | Premium synthetic lubricants | 523 |
| 6 | US6372696B1 | Traction fluid formulation | 482 |
| 7 | US7214649B2 | Hydrocarbyl dispersants including pendant polar functional groups | 349 |
| 8 | US3322670A | Detergent-dispersant lubricant additive having anti-rust and anti-wear properties | 329 |
| 9 | US20030195128A1 | Lubricating oil compositions | 208 |
| 10 | US20050133407A1 | Finished lubricating comprising lubricating base oil with high monocycloparaffins and low multicycloparaffins | 178 |
Citation counts favour older filings simply by virtue of longer exposure in the corpus; treat this table as a map of foundational prior art, not a ranking of current 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 where this field is heading
Three signals stand out once families, geography and citation age are read together: a flat-to-declining filing curve, a claim style that leans on functional property codes, and a small set of incumbents still filing while most of the historical leaders have gone quiet.
Growth has stalled since 2021
The gap between the 2021 peak of 56 and the 2022 midpoint of 37 already signalled a slowdown before the more recent partial-year counts. Even discounting for publication lag, this is a plateaued field rather than an expanding one.
Property claims outnumber pure composition claims
More than half of all records carry a C10N lubricant-property code alongside the C10M base class, meaning the dominant claim strategy ties a formulation to a measurable outcome — oxidation stability, viscosity index, friction coefficient — rather than composition alone.
Filing is concentrated across three offices
The United States, the EPO route and Canada together account for the bulk of receiving-office activity, with WIPO PCT filings (137) suggesting a meaningful share of applicants still pursue multi-jurisdiction protection rather than filing nationally first.
Most historical leaders have stopped filing new families
Of the assignees tracked for recent-year momentum, only ExxonMobil Technology and Engineering shows filings in the latest year; Afton Chemical, Lubrizol, ExxonMobil Chemical Patents, BASF and Infineum all show zero, with Infineum recording a -100% year-on-year change.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to lubricant additive packages, with the prior art for and against each one.
Who is filing, and who has stopped
The assignee base is a small, stable group of specialty-chemical and oil-major names built up over the last decade, with co-filing pairs concentrated among a handful of corporate affiliates. Momentum has narrowed sharply: most of the names that built the largest portfolios show no filings in the most recent year, leaving a thinner group of active filers.
ExxonMobil Technology and Engineering
The only assignee among the tracked group with confirmed activity in the latest year, suggesting continued internal investment in additive package claims even as peers pause.
Chevron's internal affiliate filing pattern
The strongest co-assignee pair in the dataset links two Chevron affiliates, indicating a deliberate cross-jurisdiction filing structure rather than an external collaboration.
One clear cross-company link
Lubrizol and Chevron U.S.A. share five families, the largest co-filing count between two independent groups in this dataset, worth watching for licensing or supply-chain signals.
Established filers have gone quiet
Afton Chemical, Lubrizol, ExxonMobil Chemical Patents, BASF and Infineum International each show no filings in the latest year, with Infineum's year-on-year change recorded at -100%.
| Assignee | Recent year | YoY |
|---|---|---|
| ExxonMobil Research and Engineering Company | 3 | — |
| Afton Chemical Corporation | 0 | — |
| Lubrizol Corporation | 0 | — |
| ExxonMobil Chemical Patents Inc. | 0 | — |
| BASF SE | 0 | — |
| Infineum International Limited | 0 | -100% |
| Chevron Oronite Company LLC | 0 | — |
| Total Marketing Services | 0 | — |
Where to take this analysis
This landscape identifies the filing pattern and the incumbent set; deciding where to file next requires drilling into specific claim language and freedom-to-operate against the most-cited prior art.
Map claim scope against the citation backbone
Run the highest-cited records — US4956122A, US6559105B2 and the others in the table above — against a proposed claim to see how much of the foundational composition space they still block.
Explore in EurekaTrack the quiet incumbents for reactivation
Afton, Lubrizol, BASF and Infineum show zero recent filings; a portfolio review can flag whether that reflects a shift to trade secret protection or simply a slower filing cycle.
Explore in EurekaTest white space in the under-claimed branches
Silicone-functionalized VI improvers and slow-release gel delivery show thinner filing density than the core anti-wear and detergent-dispersant claims — worth a freedom-to-operate check before drafting.
Explore in EurekaCommon questions about this patent landscape
The dataset shows a small, stable group of specialty-chemical and oil-major assignees, with ExxonMobil Technology and Engineering the only one showing confirmed filings in the most recent year among the tracked group. Afton Chemical, Lubrizol, ExxonMobil Chemical Patents, BASF and Infineum International all built substantial historical portfolios but show zero filings in the latest year. This suggests the field's largest portfolio holders are consolidating existing claims rather than actively expanding them right now.
Filing peaked at 56 families in 2021, down from a smoother climb that included 51 in 2017, and had already fallen to 37 by the 2022 midpoint. Later years show lower counts still, though publication lag of roughly eighteen months means the most recent one to two years will always look artificially quiet. Overall the honest read is a plateaued or slightly declining filing curve rather than a growth market.
Beyond the core C10M lubricant composition class, 777 of the 1,535 records also carry a C10N code covering lubricant property claims such as oxidation stability or viscosity index, meaning most applicants tie their formulation to a measurable performance outcome. Meaningful overlap also appears with C07F organo-metallic compounds, C10L fuels, C07C carbocyclic compounds and C08F addition polymers, reflecting the chemistry underlying viscosity index improvers and friction modifiers. Anyone drafting in this space should expect prior art searches to cross into those adjacent classes.
Sub-areas with thinner filing density include silicone-functionalized viscosity index improvers, additives targeted specifically at low-speed pre-ignition mitigation, slow-release gel-form delivery systems, and friction modifiers built on organo-metallic chemistry that overlaps C07F. These branches show up in the IPC composition and citation data as narrower and more recently opened than the dense anti-wear and detergent-dispersant core. A first claim in these areas would need to tie a specific chemical structure to a named performance failure mode rather than a general property improvement.
The most-cited records in this corpus include US4956122A ('Lubricating composition'), US6559105B2 covering ester-substituted hindered phenol antioxidants, and WO2004007653A2 on slow-release gel additive delivery, all carrying citation counts well above more recent filings. These older patents effectively staked out the foundational composition space that newer filings, including recent viscosity index improver claims like US20210207052A1, now build narrowly around. Any freedom-to-operate review in this field should start with this small set of highly-cited documents before moving to more recent, narrower claims.
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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.