Single-Use Bioreactor Mixing Control Patents: Leaders & Trends 2026
- 45.1% of all 450 records sit with just five assignees, making the top of this field genuinely concentrated rather than fragmented.
- Filing fell 48% from 2021 to 2024 the last year with a complete publication record, after peaking at 65 filings in 2023.
- B01F mixing/stirring classes appear in 18.4% of records nearly matching C07K peptide claims, showing mixing hardware is claimed almost as often as the biology it serves.
Filing growth compares 2021 (23 records) with 2024 (12) — 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 450 records in scope (CR5), not by the ranked leaders only.
What this landscape covers
Single-use bioreactor mixing control sits at the intersection of disposable bag design and classic stirred-tank engineering: claims cover impeller geometry, power-per-volume ratios, shear rate uniformity and flow pattern inside flexible bags rather than rigid vessels. The search scope combines bioreactor bag terminology with mixing-specific language — mixing time, power input, impeller speed, shear rate, dead zone, flow pattern — against the core bioreactor IPC classes, so the 450 records in scope are documents that address mixing performance specifically, not bioreactors in general.
Because publication lags filing by roughly 18 months, the 2025 and 2026 figures in the trend chart are still filling in; they should not be read as a slowdown until later data cuts confirm it.
Filing trend and technology composition
Two views of the same 450 records: how filing activity has moved year over year, and which IPC subclasses the claims fall under.
Filing activity, 2017-2026
Filings rose to a peak of 65 in 2023, then declined 48% from 23 filings in 2021 to 12 in 2024 — the last year with a complete publication record. Earlier years such as 2017 (23 filings) show the field was already active before the recent peak.
IPC class composition
C12M bioreactor classes cover all 450 records by definition of the search scope. Below that, C07K peptide/protein claims (18.7%) and B01F mixing/stirring claims (18.4%) are nearly tied, with C12N microorganism claims (10.4%) and C12P fermentation claims (7.6%) trailing. B01D separation, B01J catalysis and B01L lab apparatus each sit under 6%, marking them as adjacent rather than core to this dataset.
Shares are the percentage of the 450 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Single-Use Bioreactor Mixing Control with Eureka
This page is one run against one query. Ask Eureka your own question about single-use bioreactor mixing control and every answer comes back with the patent numbers behind it.
Try EurekaMost-cited records in this landscape
Linearly scalable single use bioreactor system (US20130288346A1)
Discloses a single-use bioreactor bag design that provides substantially equivalent maximum shear rate at the impeller tip and average or bulk shear rate across a range of power per unit working volume and rpm, intended to give uniform shear profile when the bag design is used as a scale-down or scale-up platform. The linearly scalable system pairs two single-use bioreactor bags of different volumes where the working-volume height-to-tank-diameter ratio (H/D) is held at about 1.5.Filed by Global Life Sciences Solutions USA LLC, the leading assignee in this dataset.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US7384783B2 | Stirred-tank reactor system | 292 |
| 2 | US20050239199A1 | Stirred-tank reactor system | 253 |
| 3 | US20090035856A1 | Continuous perfusion bioreactor system | 174 |
| 4 | US20170349874A1 | Single Use Bioreactor | 135 |
| 5 | US20080166328A1 | In vitro expansion of postpartum-derived cells using microcarriers | 133 |
| 6 | WO2007134267A2 | Disposable bioreactor | 84 |
| 7 | US20180010082A1 | Bioreactor With Higher Agitation Rates | 79 |
| 8 | US20110263021A1 | Method and device for industrial biolayer cultivation | 74 |
| 9 | US9109193B2 | Continuous perfusion bioreactor system | 55 |
| 10 | WO2009093995A1 | Bag wrinkel remover, leak detection systems, and electromagnetic agitation for liquid containment systems | 55 |
Citation counts favour older documents that have had more time to accumulate references within the searched corpus; treat them as a signal of influence, not of current commercial importance.
Each row carries its publication number; clicking a row searches Eureka by that number.
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Three patterns stand out once the records are grouped by assignee, class and year.
The top of the field is genuinely concentrated
Five assignees account for 203 of the 450 records in scope, with the leader alone holding 67. That is a narrower base than the 93-company ranked list might suggest at first glance, and it means freedom-to-operate searches in mixing control should start with the leading names' full claim sets, not a broad sweep of the long tail.
Filing has cooled from its 2023 peak
Activity climbed to 65 filings in 2023 before falling to 12 by 2024, the last year with a complete publication record. Several of the most active assignees show flat or declining year-on-year filing in the most recent tracked year, consistent with a field that filed hard around a design wave and is now consolidating rather than still expanding claim territory.
Mixing hardware is claimed almost as heavily as the biology
B01F mixing and stirring classes appear in nearly as many records as C07K peptide and protein classes, showing that impeller and flow-pattern claims are not a minor annex to bioprocess patents here but a comparably dense claim territory in their own right.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to single-use bioreactor mixing control, with the prior art for and against each one.
Who is filing, and where the openings sit
The ranked leaders hold a large share of the field, but several mixing sub-areas remain lightly claimed relative to the core stirred-tank and shear-uniformity space.
One assignee sets the pace
The top-ranked assignee holds 67 of the 450 records, well ahead of the fifth-place holder at 24 and tenth place at 15 — a steep drop-off that marks a genuine leader rather than a crowded top tier.
A defined second tier
Between fifth place (24 records) and tenth place (15 records) sits a group of assignees with meaningful but non-dominant portfolios, together contributing to the 64.0% top-10 share of all 450 records.
A long tail of single- and low-filing entrants
Beyond the top 10, the ranking runs to 93 companies, many holding only a handful of records. This tail is where licensing-in or acquisition targets for niche mixing designs are more likely to surface than fresh whitespace filings.
| Assignee | Recent year | YoY |
|---|---|---|
| Global Life Sciences Solutions USA LLC | 1 | -50% |
| Regeneron Pharmaceuticals Inc | 0 | -100% |
| Just-Evotec Biologics Inc | 0 | -100% |
| XCELLEREX LLC | 0 | — |
| Univercells SA | 0 | -100% |
| Baxter International Inc | 0 | — |
| Baxter Healthcare Corporation | 0 | — |
| Xcellerex LLC | 0 | — |
Where to take this analysis
The landscape points to specific next steps depending on whether the goal is filing, freedom-to-operate, or partnership scouting.
Check freedom-to-operate against the top five
With 45.1% of records held by five assignees, a targeted FTO review of their full portfolios will cover most of the concentrated claim risk before a broader search is needed.
Run a claim comparison in EurekaTrack the post-2023 filing pattern as it fills in
The apparent decline after the 2023 peak is still provisional given publication lag; revisit the trend once 2025-2026 records finish publishing.
Set up a monitoring alert in EurekaScope the under-claimed mixing sub-areas
Dead-zone detection, bag-integrated baffles and perfusion-mode mixing control show thinner claim density than core stirred-tank designs, worth a closer novelty check before filing.
Explore white space in EurekaFrequently asked questions
One assignee leads the field with 67 of the 450 records in scope, well ahead of the fifth-ranked holder at 24 records and tenth place at 15. The top five assignees combined hold 45.1% of all 450 records, making this a concentrated field at the top even though the full ranking runs to 93 companies. Anyone evaluating freedom-to-operate should start by reviewing the leading assignees' full claim sets before widening the search to the long tail.
Filing peaked at 65 records in 2023 and then fell 48% from 23 filings in 2021 to 12 in 2024, the last year with a complete publication record. Because publication typically lags filing by around 18 months, the lower figures shown for 2025 and 2026 are provisional and should not yet be read as a continued decline. The honest read is that the field filed heavily around a design wave through 2023 and appears to be consolidating, pending confirmation from later data cuts.
Within the 450 records, B01F mixing and stirring classes appear in 18.4% of filings, nearly matching C07K peptide and protein classes at 18.7%. C12N microorganism and genetic engineering claims appear in 10.4% of records and C12P fermentation claims in 7.6%, with separation (B01D), catalysis (B01J) and lab apparatus (B01L) each under 6%. Because a single record can carry multiple IPC classes, these shares add up to more than 100% and should be read as overlap patterns, not a partition of the field.
US20130288346A1, filed by Global Life Sciences Solutions USA LLC, claims a single-use bioreactor bag design that holds shear rate at the impeller tip and bulk shear rate roughly equivalent across a range of power-per-volume and rpm settings, plus a linearly scalable system pairing two bags of different volumes at a fixed working-volume height-to-diameter (H/D) ratio of about 1.5. It is a strong prior-art reference for anyone claiming shear-uniformity-based scale-up, but it is specific to that H/D ratio and shear-matching approach rather than covering all single-use mixing designs. Designs using different geometric ratios or alternative shear-control methods have room to differentiate, subject to a full claim-by-claim review.
Relative to the dense core of stirred-tank and shear-uniformity claims, sub-areas such as dead-zone detection sensors, bag-integrated flow baffles, scale-down shear-matching protocols, perfusion-mode mixing control and multi-impeller bag geometries show thinner claim density in this dataset. These are not guaranteed-open areas, but they warrant a closer novelty check before assuming they are blocked. Given the concentration among the top five assignees elsewhere in the field, these adjacent branches are also where smaller filers and new entrants are more likely to find room to build a defensible position.
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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.