Precision Fermentation Foam Control Patents: Leaders & Trends 2026
- 48.7% concentration at the top. The five leading assignees hold 55 of 113 records in scope, a tight cluster over a long tail of single- and double-filing entrants.
- Filings peaked in 2018 at 23 records. Growth since then has cooled sharply — the 2021-to-2024 window shows a 75% decline, though 2025 onward is still filling in as publications lag filing.
- Bioreactor apparatus dominates the claim space. C12M records account for 83.2% of the 113 records in scope, far ahead of foods (A23L, 11.5%) or peptide-specific claims (C07K, 10.6%).
Filing growth compares 2021 (4 records) with 2024 (1) — 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 113 records in scope (CR5), not by the ranked leaders only.
What this landscape covers
Foam control sits at the mechanical edge of precision fermentation: gas entrainment, probe fouling and antifoam dosing determine whether a bioreactor run stays on spec. This landscape pulls 113 published records filed between 2015 and 2026 that combine fermentation process language with foam-sensor, antifoam-agent or gas-entrainment claim elements, filtered to bioreactor, fermentation and microorganism IPC classes. It is a narrow, apparatus-heavy slice of the broader fermentation patent space, not a general survey of microbial engineering.
Because publication lags filing by roughly 18 months, the most recent one to two years in the trend chart will always look thinner than they eventually turn out to be. Reading the chart's tail as a slowdown, on its own, overstates the case.
Filing trend and technology composition
Two views of the same 113 records: how filing activity has moved year over year, and which IPC subclasses the claims actually sit in.
Filing activity, 2017–2026
Filings ran from 4 records in 2017 to a peak of 23 in 2018, then eased. The 2021-to-2024 span shows a 75% decline (4 down to 1); 2025 and 2026 remain partial because of publication lag and should not yet be read as continued decline.
Technology composition by IPC subclass
C12M (bioreactors and enzyme apparatus) touches 83.2% of the 113 records, with C12P (fermentation and enzymatic synthesis) at 62.8% and C12N (microorganisms and genetic engineering) at 49.6%. Smaller pockets — B01J catalysis-adjacent processes at 17.7%, and foods, feed, testing and peptide classes each in the 10–12% range — mark where foam-control claims cross into downstream product or measurement territory. Because records can carry multiple classes, these shares add to more than 100% of the 113 records and should not be summed.
Shares are the percentage of the 113 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Precision Fermentation Foam Control with Eureka
This page is one run against one query. Ask Eureka your own question about precision fermentation foam control and every answer comes back with the patent numbers behind it.
Try EurekaRepresentative and most-cited records
Integrated bio-reactor monitor and control system (US8753871B2)
Systems and methods for automatically controlling conditions of a process are disclosed. A controller is programmed with a sequence of steps and parameters required to carry out a bioreactor process. A sensor system interacts with the bioreactor to receive information related to a condition of the bioreactor and/or receive a sample from it, which it analyzes. The sensor system sends data signals to the controller, which determines a control signal based on the received information and sends it back to the sensor system to perform an action affecting the bioreactor condition.Filed by New England Controls; issued 2014-06-17. Its claim scope sits on the control-loop layer that sits above any specific foam sensor or antifoam chemistry.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | WO1995012608A1 | Synthesizing and screening molecular diversity | 379 |
| 2 | US20070092930A1 | Process for enhanced recovery of crude oil from oil wells using novel microbial consortium | 107 |
| 3 | WO2018144965A1 | Microbial conversion of co 2 and other c1 substrates to vegan nutrients, fertilizers, biostimulants, and syst… | 77 |
| 4 | US5622819A | Centrifugal fermentation process | 71 |
| 5 | US5821116A | Centrifugal fermentation process | 42 |
| 6 | US7435581B2 | Integrated bio-reactor monitor and control system | 40 |
| 7 | US7285411B1 | High throughput screening assay systems in microscale fluidic devices | 39 |
| 8 | WO2019089730A1 | Matrix fermentation systems and methods for producing microbe-based products | 33 |
| 9 | US7635586B2 | Integrated bio-reactor monitor and control system | 33 |
| 10 | US7484560B2 | Process for enhanced recovery of crude oil from oil wells using novel microbial consortium | 32 |
Citation counts reflect influence within this searched corpus and skew toward older filings; they are not a measure of current commercial relevance.
Each row carries its publication number; clicking a row searches Eureka by that number.
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Three read-throughs from the trend, the concentration figures and the technology split.
A tight cluster, then a long tail
The five leading assignees hold 55 of 113 records — under half the field concentrated in a handful of hands, with the next 35 held by a tail of single- and low-count filers. That leaves room for a new entrant to build a defensible position without displacing an incumbent, provided the claim sits outside the crowded apparatus core.
Activity has cooled from its 2018 peak
Filings peaked at 23 records in 2018 and have declined since, with the 2021-to-2024 window down 75% (4 to 1 record). Treat 2025 and 2026 figures as incomplete rather than confirmation of continued decline, since publication lag understates the most recent years.
Apparatus claims crowd the core
C12M bioreactor and enzyme-apparatus claims appear in 83.2% of the 113 records, well ahead of fermentation-process claims (C12P, 62.8%) and genetic-engineering claims (C12N, 49.6%). Anyone drafting a foam-sensor or antifoam claim should expect dense prior art at the apparatus level and look instead to the thinner downstream classes.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to precision fermentation foam control, with the prior art for and against each one.
Who holds the claims, and where the gate sits
Forty assignees appear in the ranking that the dataset returns — not a top-50 or top-100 cut, the full list the search produced. The leader holds 19 of the 113 records; fifth place holds 7 and tenth place holds 4, which is why the top-10 combined figure (80 records, 70.8% of the field) reads as concentrated at the front and thin from there back.
One filer sets the pace
The leading assignee holds 19 of the 113 records in scope, well ahead of fifth place at 7 and tenth place at 4. That gap suggests an early, sustained filing programme rather than a recent surge.
Concentration flattens fast after the leader
The top 10 combined hold 80 of 113 records — 70.8% of the field — but the drop from 19 at first place to 4 at tenth shows most of that share sits with a small number of firms, not spread evenly across ten.
Momentum has stalled across most named leaders
Several of the assignees who built the largest historical positions show zero filings in the latest year of record, consistent with the field-wide 2021-to-2024 decline rather than a single company's exit.
| Assignee | Recent year | YoY |
|---|---|---|
| Kiverdi Inc | 0 | — |
| Locus IP Co LLC | 0 | — |
| NESTE CORP | 0 | — |
| Affymax Tech NV | 0 | — |
| BROADLEY JAMES | 0 | — |
| Toray Industries Inc | 0 | — |
| PCBU Services Inc | 0 | — |
| Boehringer Ingelheim International GmbH | 0 | -100% |
Where to take this next
The landscape data points to specific next steps depending on whether you are scoping a filing, tracking a competitor, or evaluating freedom to operate.
Check freedom to operate against the apparatus core
With 83.2% of records touching C12M, any bioreactor-integrated foam sensor or antifoam delivery mechanism needs a claim chart against the densest part of this field before drafting.
Run a freedom-to-operate check in EurekaTrack the leading assignee's recent filings
The top-ranked assignee holds 19 of 113 records; watching whether that position keeps growing tells you whether the field's concentration is deepening or plateauing.
Set up assignee tracking in EurekaScope the under-claimed branches
Optical sensing, gas-entrainment feedback loops and feed-grade formulations show thinner density than the apparatus core and may offer more open claim space.
Explore white space in EurekaCommon questions on this landscape
The dataset ranks 40 assignees across 113 records, with the leader holding 19 records and the top five combined holding 55 records, or 48.7% of the field. That leaves a long tail of companies with only one or two filings each, so the field is concentrated at the top but far from a duopoly. Anyone assessing competitive position should look at both the leader's filing pace and the size of the tail before assuming the space is closed.
Filings peaked at 23 records in 2018 and have declined since, with the 2021-to-2024 window down 75% (from 4 records to 1). However, publication typically lags filing by around 18 months, so the 2025 and 2026 figures in any trend chart are still filling in and should not be read as confirmation the field has gone quiet. The honest read is: activity has cooled markedly from its 2018 peak, with the most recent two years too incomplete to call.
The bulk of the 113 records sit in bioreactor and enzyme apparatus claims (C12M, 83.2%), followed by fermentation and enzymatic synthesis process claims (C12P, 62.8%) and microorganism or genetic-engineering claims (C12N, 49.6%). Smaller but notable shares touch foods (A23L), animal feed (A23K), enzyme/DNA testing (C12Q) and peptide chemistry (C07K), each in the 10 to 12% range. Because a single record often carries several of these classes, the shares add to more than 100% of the record total and should be read as overlap, not as separate slices of a pie.
The technology composition data shows the apparatus core (C12M) is heavily claimed, while adjacent branches — optical foam-height sensing suited to opaque broths, antifoam dosing tied to real-time gas-entrainment feedback, probe self-cleaning mechanisms, and feed-grade or peptide-stable defoamer chemistries — carry much thinner representation. These are not guarantees of novelty, but they are the branches where filing density relative to the apparatus core is lowest, which is where a freedom-to-operate search is most likely to turn up open ground.
The most-cited record in this corpus is WO1995012608A1, covering molecular diversity synthesis and screening, cited 379 times. High citation counts inside a searched corpus tend to favour older filings simply because they have had more years to accumulate citations, so this should be read as a signal of historical influence on the field's method base, not as a claim of current commercial dominance.
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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.