Alcohol To Jet SAF Patents: Top Companies & Trends 2026
Filing growth compares 2021 (1 records) with 2024 (3) — 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 253 records in scope (CR5), not by the ranked leaders only.
What the alcohol-to-jet patent record shows
Alcohol-to-jet (ATJ) conversion — turning ethanol, isobutanol and related alcohols into jet-range hydrocarbons — sits at the intersection of fuel chemistry and refining process engineering. The 253 records in scope span 2015 through the first half of 2026, giving a decade-long view of how claim activity has built up around fuel composition, catalytic conversion and engine-performance additives. Patent families, not raw document counts, are the fairer unit here because they strip out duplicate continuation filings and multi-jurisdiction copies of the same invention.
Filing activity is still comparatively small in absolute terms next to mainstream refining patent classes, but it is concentrated: a handful of filers account for a large share of the record, and the technology composition skews heavily toward fuel and additive claims rather than upstream conversion chemistry. That combination — a small field with a dominant IPC branch and a top-heavy assignee list — is the starting point for reading the rest of this landscape.
Filing trends and technology classification
The trend line and the IPC breakdown below are both drawn from the same 253-record set, so the shares can be read against each other directly.
A decade of gradual build, with a 2023 peak
Filings moved from 2 in 2017 to a peak of 9 in 2023, with the 2021-2024 window showing filing growth of +200% (1 to 3). 2025 and 2026 counts will understate true filing activity because publication typically lags filing by roughly 18 months — treat the most recent two years as still filling in, not as a slowdown.
Fuel and additive claims dominate over conversion chemistry
C10L (fuels and firelighters) appears in 86.6% of the 253 records, far ahead of C10G (hydrocarbon oils and refining) at 25.7% and C10M (lubricants) at 21.3%. Narrower branches — F02M fuel supply at 13.0%, F01N exhaust treatment at 11.5%, C07C acyclic compounds at 10.3%, C10N lubricant properties at 7.1% and B01D separation processes at 6.3% — carry far less claim density and are worth checking individually before assuming they are crowded.
Shares are the percentage of the 253 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Sustainable Aviation Fuels: Alcohol To Jet Patent Landscape with Eureka
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Try EurekaThe most-cited prior art and the newest filing on record
WO2026022792A1 — A process synthesizing sustainable aviation fuel compositions
The invention is related to a process for synthesizing a sustainable aviation fuel composition. The process comprises providing a reaction mixture comprising a first compound that is at least one of mevalonolactone, mevalonic acid, mevalonate salt, dehydromevalonic acid, dehydromevalonate salt, dehydromevalonolactone or combinations thereof. The process then involves converting the first compound in the reaction mixture to provide a first intermediate comprising isoprene, then reacting the isoprene in the presence of a first heat transfer agent to provide a second intermediate comprising terpenes.Filed by Visolis, Inc., published 2026-01-29 — one of the most recent entrants in the dataset, built on a mevalonate-to-isoprene-to-terpene route rather than the more common ethanol dehydration path.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | WO2008119082A2 | Enhanced production of fatty acid derivatives | 402 |
| 2 | US20090282731A1 | Fuel additives to maintain optimum injector performance | 148 |
| 3 | US5891203A | Fuel lubricity from blends of a diethanolamine derivative and biodiesel | 141 |
| 4 | US6858048B1 | Fuels for internal combustion engines | 85 |
| 5 | US20090000186A1 | Nano-sized metal and metal oxide particles for more complete fuel combustion | 63 |
| 6 | EP0512404A1 | Identification of liquid hydrocarbons using chemical markers | 62 |
| 7 | US20150299606A1 | Low Ash Lubricant and Fuel Additive Comprising Polyamine | 41 |
| 8 | US20120159839A1 | Integrated Process for Producing Biofuels | 35 |
| 9 | US20110296746A1 | Amino and imino propionic acids, process of preparation and use | 25 |
| 10 | US20040210478A1 | Emissions credit method | 24 |
Citation counts reflect influence inside this searched corpus and skew toward older filings by construction — a highly cited 2008 filing is not necessarily more relevant today than a lightly cited 2023 one.
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 freedom-to-operate decision
Three patterns stand out once the assignee ranking, the IPC mix and the citation table are read together.
A short list of filers holds a disproportionate share
The leader alone holds 44 records, and the top five combined hold 105 — 41.5% of all 253 records in scope. The tenth-ranked filer holds only 7, showing the drop-off is steep rather than gradual.
Activity is building, not plateauing
Annual filings rose from 1 in 2021 to 3 in 2024, a +200% increase over that three-year span, with a peak of 9 in 2023. Counts for 2025 and 2026 will rise further as later filings publish, given the roughly 18-month lag between filing and publication.
Fuel and additive claims crowd out process branches
C10L fuels and firelighters claims appear in 86.6% of records, while separation processes under B01D appear in only 6.3%. That gap suggests process-side claim space — separation, purification, catalyst recovery — is comparatively open next to the fuel-composition space.
US and Europe anchor the filing map
The United States receives the largest share of filings at 93, followed by Europe (EPO) at 42, Canada at 26, WIPO/PCT at 25, Australia at 19 and the United Kingdom at 11. A filer targeting only one of the secondary offices should check whether the leading assignees have already covered it via PCT.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to sustainable aviation fuels: alcohol to jet patent landscape, with the prior art for and against each one.
| Assignee | Co-assignee | Shared families |
|---|---|---|
| Chevron U.S.A. Inc. | OREAR DENNIS J | 4 |
| SANDERS JAMES KENNETH | YANG DUCK JOO | 4 |
| SANDERS JAMES KENNETH | TOCK RICHARD WILSON | 4 |
| Standard Alcohol Company of America, Inc. | STEVENS REX R | 1 |
| Standard Alcohol Company of America, Inc. | RADOSEVICH MARK C | 1 |
| Standard Alcohol Company of America, Inc. | JIMESON ROBERT M | 1 |
Only 6 co-assignee pairs appear in the dataset, and the strongest pairs recur at a count of 4 — a sign that most work here is filed by a single entity rather than through joint development arrangements.
Where to take this analysis
The numbers above answer who is filing and where the claim density sits. The next step is usually to test a specific claim or a specific gap against the full corpus.
Stress-test a draft claim against the leaders' portfolios
Run a candidate composition or process claim against the top five filers' full families before committing R&D spend, since they already hold 41.5% of the record.
Open Eureka to check claim overlapMap the under-claimed process branches
B01D separation and C10N lubricant-property claims sit well below the C10L fuels share — worth a deeper look before assuming those branches are occupied.
Explore white space in EurekaTrack the 2025-2026 filings as they complete
Because publication lags filing by around 18 months, the most recent two years of this trend will keep filling in — revisit the count periodically rather than reading it as a slowdown.
Set up a filing alert in EurekaCommon questions about alcohol-to-jet SAF patents
The dataset used for this landscape contains 253 published records filed or published between 2015 and mid-2026, covering the alcohol-to-jet conversion route specifically. This count reflects a targeted search combining title and claim language around alcohol-to-jet conversion with relevant IPC classes such as C10G and C10L1, so it is narrower than the full universe of sustainable aviation fuel patents generally. Family-level counting is used rather than raw document counts, which reduces the effect of continuation filings and multi-jurisdiction duplicates on the total.
Filing activity is concentrated: the top five assignees together hold 105 records, or 41.5% of the 253 records in scope, and the single leading filer holds 44 records on its own. Beyond the top ten, which together hold 59.7% of records, the list runs long with many single-digit filers — 81 companies appear in the ranking overall. That shape, a steep drop after the leaders, means a competitor entering fresh should expect to negotiate around a small number of large portfolios rather than many equally-sized ones.
The overwhelming majority of records, 86.6%, carry an IPC C10L classification covering fuels and firelighters, meaning fuel composition and additive claims dominate the field. Hydrocarbon oil refining (C10G) and lubricants (C10M) follow at 25.7% and 21.3% respectively, with fuel supply systems, exhaust treatment, and separation processes each covering smaller shares. Because a single record can carry several IPC codes, these percentages describe overlapping claim coverage rather than a strict breakdown of the field into distinct segments.
Filing activity grew from 1 record in 2021 to 3 in 2024, a documented increase of +200% over that span, with the field's peak year so far at 9 filings in 2023. It would be premature to call the field slowing based on 2025 or 2026 counts, since patent publication typically lags actual filing by around 18 months, meaning recent years are still incomplete in the data. The more reliable read is that activity has been building steadily since the mid-2010s rather than tapering off.
Separation processes under B01D appear in only 6.3% of the 253 records, and lubricant-property claims under C10N sit at 7.1%, both well below the 86.6% share held by general fuel-composition claims under C10L. That gap does not guarantee freedom to operate, but it does suggest the process and purification side of alcohol-to-jet conversion carries lower claim density than the fuel-formulation side. Anyone drafting a new claim in those narrower branches should still run a full freedom-to-operate search against the specific assignees active there, since low overall density can still mask a blocking claim from a leading filer.
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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.