Precision Fermentation Feed Control Patents: Leaders & Trends 2026
- 44.9% concentration at the top. The five leading assignees account for 123 of 274 records in scope, but a long tail of 91 further companies each hold a handful of filings.
- Filing activity is still climbing, not cooling. Filings rose from 9 in 2021 to 11 in 2024, a 22% increase over that span, even as 2025-2026 figures remain understated by publication lag.
- Bioreactor apparatus claims dominate the class mix. 85.4% of records touch C12M bioreactor and enzyme apparatus classes, far ahead of the 30.3% that touch microorganism engineering under C12N.
Filing growth compares 2021 (9 records) with 2024 (11) — 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 274 records in scope (CR5), not by the ranked leaders only.
What this landscape covers
Precision fermentation feed control sits at the intersection of bioprocess engineering and microbial biology: claims here cover how a fermenter meters carbon source, oxygen and other substrates into a growing culture to avoid overflow metabolism and keep yield predictable. The 274 records in scope span both the mechanical side of the problem — feed pumps, valves, sensor loops — and the biological side, including strain engineering and substrate pulse strategies designed to work with a specific feeding profile.
Filing activity traces back to 2017 and peaked in 2018, with recent years still filling in as publication catches up with filing dates roughly 18 months behind. The receiving-office pattern — concentrated in the United States, with meaningful EPO, PCT, Canadian, Australian and Indian filings — points to a field still being built out across jurisdictions rather than one already settled around a single regime.
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Filing trend and technology composition
Two views of the same 274 records: how filing volume has moved year over year, and which IPC subclasses carry the claims.
Filing trend, 2017-2026
Filings opened at 19 in 2017, climbed to a peak of 32 in 2018, and have continued at a lower but persistent rate since; 2021's 9 filings rose to 11 by 2024, a 22% gain over three years. The final one or two years in the series are undercounted because publication lags filing by around 18 months, so treat the most recent bars as a floor, not a ceiling.
Technology composition by IPC subclass
C12M (bioreactors and enzyme apparatus) touches 85.4% of the 274 records, and C12P (fermentation and enzymatic synthesis) touches 68.6% — the two together show that most filings anchor on the physical process rather than pure microorganism claims, which sit at 30.3% under C12N. Smaller shares in B65G conveying, B01D separation, F16K valves, G01N analysis and A23L food applications mark where feed-control inventions cross into adjacent equipment and end-use domains.
Shares are the percentage of the 274 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Precision Fermentation Feed Control with Eureka
This page is one run against one query. Ask Eureka your own question about precision fermentation feed control and every answer comes back with the patent numbers behind it.
Try EurekaRepresentative and most-cited filings
Microbial alcohol production process (US20110059499A1)
The invention relates to the production of alcohols by microbial fermentation, particularly to production of alcohols by microbial fermentation of substrates comprising CO. It more particularly relates to processes for the production of alcohols from their corresponding acids in the presence of a substrate comprising CO. In particular embodiments, a fermentation reaction producing acid(s) and optionally alcohol(s) is perturbed such that at least a portion one or more of acid(s) is converted to alcohol.Filed by LanzaTech NZ, this 2011 filing shows how early gas-fermentation feed strategies were claimed around acid-to-alcohol conversion rather than substrate metering alone.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20100330633A1 | Integrated System and Process for Bioproduct Production | 176 |
| 2 | US20090130734A1 | System for the production of methane from co2 | 66 |
| 3 | US8883464B2 | Methods for producing 3-hydroxypropionic acid and other products | 55 |
| 4 | US20130122541A1 | Microorganism production of high-value chemical products, and related compositions, methods and systems | 53 |
| 5 | WO2012129450A1 | Microbial production of chemical products and related compositions, methods and systems | 49 |
| 6 | US20110059499A1 | Microbial alcohol production process | 47 |
| 7 | US20090162892A1 | Fermentative production of fine chemicals | 43 |
| 8 | US9428778B2 | Method for producing 3-hydroxypropionic acid and other products | 38 |
| 9 | WO2016050893A1 | Methods and bioreactors for microbial digestion using immobilized biofilms | 35 |
| 10 | US9388419B2 | Methods for producing 3-hydroxypropionic acid and other products | 35 |
Citation counts are drawn from within this searched corpus and skew toward older filings that have had more time to accumulate citations; they signal influence on later filers, not current commercial importance.
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 decision
Three read-outs from the concentration, trend and citation data that matter more than the raw counts on their own.
The top of the field is dense, the rest is thin
44.9% of all 274 records in scope belong to the five leading assignees, and the top 10 combined reach 62.0%. That leaves a long tail of 86 further companies among the 96 ranked, each holding only a handful of filings — a pattern typical of a field with a few first-movers and many opportunistic entrants.
Growth is real but comes off a small base
Filings rose from 9 in 2021 to 11 in 2024, a 22% increase over that three-year span — modest in absolute terms but a genuine uptick rather than a plateau. The 2025-2026 figures in the raw trend look lower still, but that reflects publication lag rather than a slowdown in actual filing.
Apparatus claims outnumber pure biology claims
C12M bioreactor and enzyme apparatus classes appear in 85.4% of the 274 records, well ahead of C12N microorganism engineering at 30.3%. That gap suggests the more contested ground is the hardware and control loop around the culture, not the organism itself.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to precision fermentation feed control, with the prior art for and against each one.
| Assignee | Co-assignee | Shared families |
|---|---|---|
| OPX Biotechnologies, Inc. | The Regents of the University of Colorado | 4 |
| Sweetwater Energy, Inc. | Aparta Patents Ltd. | 3 |
| LanzaTech NZ, Inc. | WATERS GUY WILLIAM | 1 |
| LanzaTech NZ, Inc. | TREVETHICK SIMON RICHARD | 1 |
| LanzaTech NZ, Inc. | TRAN LOAN PHUONG | 1 |
| LanzaTech NZ, Inc. | KOEPKE MICHAEL | 1 |
| LanzaTech NZ, Inc. | JENSEN OVERGAARD RASMUS | 1 |
| LanzaTech NZ, Inc. | BROMLEY JASON CARL | 1 |
Only 10 co-assignee pairs appear across the dataset, and the strongest pairing links four shared records — a sign that most invention here is filed solo rather than through joint development, even where academic and industrial partners both appear in the leader board.
Who holds the leading positions
The leader in this dataset holds 45 records, well clear of the fifth-ranked company at 13 and the tenth-ranked at 8 — a steep drop-off that marks a genuine first-mover rather than a crowded tie at the top.
A clear first-mover, not a crowded tie
The top-ranked assignee holds 45 of the 274 records in scope, more than three times the fifth-place company's 13. That gap is wide enough to suggest a company that staked out core feed-control claims early and has kept filing against them.
The middle tier is where contests happen
Between fifth place at 13 records and tenth place at 8, the gap narrows considerably compared with the drop from first to fifth. This is the band most likely to contain companies still actively building a position rather than defending an established one.
Most filers hold only a handful of records
Of the 96 ranked assignees, the 86 outside the top 10 share the remaining 38.0% of records between them. Many of these are single-filing entrants — universities, spin-outs or corporates testing a specific feed-control mechanism rather than building a portfolio.
| Assignee | Recent year | YoY |
|---|---|---|
| Calysta, Inc. | 0 | — |
| Sweetwater Energy, Inc. | 0 | — |
| LanzaTech NZ, Inc. | 0 | — |
| OPX Biotechnologies, Inc. | 0 | — |
| Aparta Patents Ltd. | 0 | — |
| Jupeng Bio (HK) Limited | 0 | -100% |
| Amgen Inc. | 0 | -100% |
| NESTE CORP | 0 | — |
Where to take this analysis
The dataset points to a field with a dominant early filer, a thin middle tier and several apparatus-adjacent branches still open to new claims.
Map the leader's claim boundaries
Before filing near feed-rate or substrate-pulse control, check exactly how far the top assignee's granted claims extend into sensor feedback and valve control, since that is where the density is highest.
Explore claim scope in EurekaWatch the mid-field for movement
The fifth-to-tenth band is narrower than the gap below the leader, making it the segment most likely to see new entrants or acquisitions in the next filing cycle.
Track assignee activity in EurekaTest white-space claims early
Under-claimed branches like gas-substrate pulsing and multi-strain co-feeding valve control show up in the class mix without concentrated ownership, making them worth a freedom-to-operate check before committing R&D spend.
Run a white-space search in EurekaCommon questions about this landscape
One company leads clearly with 45 of the 274 records in scope, more than three times the fifth-ranked company's 13 filings. The next four places make up the rest of the top five, which together hold 44.9% of all records, and the drop-off after that is steep — the tenth-ranked company holds only 8. This points to a field with one strong early mover rather than several evenly matched competitors.
Filings grew from 9 in 2021 to 11 in 2024, a 22% increase over that three-year span, and 2024 is the most recent year that can be treated as reliably complete. The raw counts for 2025 and 2026 look lower, but that is an artefact of publication lag — filings typically take around 18 months to appear in the public record — not evidence of a slowdown. The field peaked earlier, at 32 filings in 2018, and has settled into a lower but still-growing rate since.
The largest share, 85.4% of the 274 records, touches C12M bioreactor and enzyme apparatus classes, covering the physical hardware and control loops around a fermenter. C12P fermentation and enzymatic synthesis follows at 68.6%, and C12N microorganism engineering trails at 30.3%. Because a single record can carry several IPC codes, these shares add up to more than 100%, but the ordering shows apparatus and process claims outweigh pure strain-engineering claims in this dataset.
The smaller IPC categories in this dataset — B65G conveying at 10.2%, B01D separation at 9.1%, F16K valves at 8.4%, G01N analysis at 6.6% and A23L food applications at 6.2% — suggest areas adjacent to the core bioreactor claims that have not attracted concentrated filing. Real-time feedback sensing tied to overflow metabolites, gas-substrate pulsing for CO/CO2 fermentation, and multi-strain co-feeding valve control are specific mechanisms within these categories worth a freedom-to-operate check before filing. A low count in a category does not guarantee an open path, but it does mean fewer entrenched claims to design around.
Moderately concentrated: the top 5 assignees hold 44.9% of all 274 records, and the top 10 hold 62.0%. That leaves 38.0% spread across 86 further companies out of the 96 ranked in total, many holding just one or two filings. It is a field with a clear leader group but still enough of a long tail that new entrants have filed successfully in recent years.
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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.
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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.