Photobioreactor Sensor Integration Patents: Leaders & White Space 2026
- Filings jumped +900% from 2021 to 2024, climbing from 3 to 30 records a year before the most recent, still-incomplete years.
- The top 5 assignees hold 32.6% of all 389 records, with a long tail of single- and few-filing entrants behind them.
- C12N microorganism claims sit inside 29.8% of records, meaning most sensor-integration filings are bundled with organism or culture claims rather than filed as standalone hardware.
Filing growth compares 2021 (3 records) with 2024 (30) — 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 389 records in scope (CR5), not by the ranked leaders only.
What this landscape covers
Photobioreactor sensor integration sits at the junction of bioreactor engineering and instrumentation: sterile connectors, optical probes, pressure and temperature sensors, probe-position mechanisms, and signal isolation as they are claimed inside algal or microbial photobioreactor systems. The scope here is defined by TACD search terms combined with core bioreactor and microorganism IPC classes, so it captures both dedicated sensor-hardware claims and broader bioreactor filings that happen to specify sensing elements.
Coverage runs from 2015 through the 2026-07-31 cut-off, spanning 389 published records. Because publication typically lags filing by roughly 18 months, the counts for 2025 and 2026 are still filling in and should not be read as a slowdown.
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Filing trends and technology composition
The dataset spans 389 published records across 100 ranked assignees, six major receiving offices, and eight IPC subclasses tied to bioreactor, microorganism and adjacent processing technology.
A sharp acceleration into 2024
Annual filings rose from 23 in 2017 to a peak of 30 in 2024, including a +900% climb from 3 records in 2021 to 30 in 2024. The 2025 and 2026 figures (down to 7 so far) reflect publication lag rather than a real pullback.
Bioreactor hardware dominates, organism claims ride alongside
C12M bioreactor and enzyme apparatus claims appear in 96.7% of the 389 records, the expected result of the search scope itself. C12N microorganism and genetic-engineering claims appear in 29.8%, and smaller shares touch separation (B01D, 11.1%), horticulture (A01G, 9.8%), fermentation (C12P, 9.3%), water treatment (C02F, 6.4%), enzymatic/DNA measurement (C12Q, 3.3%) and LED light sources (F21K, 2.6%). Because records can carry multiple classes, these shares add up past 100%.
Shares are the percentage of the 389 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Photobioreactor Sensor Integration with Eureka
This page is one run against one query. Ask Eureka your own question about photobioreactor sensor integration and every answer comes back with the patent numbers behind it.
Try EurekaThe most-cited records in this space
Photobioreactor and process for biomass production and mitigation of pollutants in flue gases
The filing describes a photobioreactor apparatus built to hold a liquid medium containing photosynthetic organisms, used as part of a gas-treatment system that removes pollutants from a gas stream. It sets out an integrated combustion arrangement in which the organisms inside the reactor partially strip undesirable pollutants from flue gas passing through the system.Abstract text is excerpted from the published filing; reference numerals refer to the original drawings.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20050239182A1 | Synthetic and biologically-derived products produced using biomass produced by photobioreactors configured fo… | 260 |
| 2 | US20050260553A1 | Photobioreactor and process for biomass production and mitigation of pollutants in flue gases | 255 |
| 3 | US20090011492A1 | Photobioreactor Cell Culture Systems, Methods for Preconditioning Photosynthetic Organisms, and Cultures of P… | 167 |
| 4 | US20090047722A1 | Systems, devices, and methods for biomass production | 156 |
| 5 | WO2006020177A1 | Photobioreactor cell culture systems, methods for preconditioning photosynthetic organisms, and cultures of p… | 103 |
| 6 | US20080220515A1 | Apparatus and methods for production of biodiesel | 100 |
| 7 | WO2007070452A1 | Systems, devices, and methods for biomass production | 90 |
| 8 | WO2003094598A1 | Photobioreactor and process for biomass production and mitigation of pollutants in FLUE gases | 85 |
| 9 | WO2009002772A2 | bioreactor | 69 |
| 10 | WO2007011343A1 | Photobioreactor and process for biomass production and mitigation of pollutants in FLUE gases | 69 |
Citation counts reward older filings that have had more time to be cited; treat them as a signal of influence within this corpus, 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 patterns stand out once filing counts, IPC composition and receiving offices are read together.
The top of the field is concentrated, not dominant
The top 5 assignees combined account for 127 of the 389 records in scope, and the top 10 reach 172 records (44.2%). That leaves well over half the field to a long tail of smaller filers, which is unusual concentration for a hardware-adjacent niche but still leaves substantial room for new entrants.
Filing activity accelerated sharply into 2024
Annual filings held in the low single digits through the early part of the window before compounding rapidly, peaking at 30 records in 2024. That timing lines up with wider commercial interest in closed-loop algal cultivation, though the dataset itself cannot attribute cause.
US and PCT routes carry the bulk of filings
The United States receives 107 records, ahead of WIPO/PCT filings at 66 and the EPO at 50, with Israel, Australia and India each in the 28-31 range. That spread suggests applicants are pursuing broad multi-jurisdiction protection rather than concentrating on a single home market.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to photobioreactor sensor integration, with the prior art for and against each one.
Who is filing, and what they are filing around
The ranked leaders hold a meaningful but not overwhelming share of the field, and recent-year momentum has cooled across several of the historically largest filers.
A clear leader, then a steep drop-off
The leading assignee holds 50 records, well ahead of fifth place at 10 and tenth place at 9. That gap between first and fifth place is the steepest part of the ranking; from fifth place down, filing counts flatten into a long tail.
Academic-industry pairings anchor the strongest collaborations
The strongest co-assignee pair links a national research centre with a university partner at 9 shared records, with a second university-industry pairing at 5 and a further research-institute pairing at 4. Collaboration in this field leans academic rather than purely corporate.
Several long-standing filers show no latest-year activity
A number of assignees that built early positions in this space, including some of the field's largest historic filers, show zero recorded filings in the latest year, with one showing a -100% year-on-year change. This may reflect publication lag as much as an actual pause in R&D.
| Assignee | Recent year | YoY |
|---|---|---|
| Arborea Ltd | 0 | -100% |
| FORELIGHT | 0 | — |
| Heliae Development LLC | 0 | — |
| Greenfuel Technologies Corporation | 0 | — |
| Centre National de la Recherche Scientifique (CNRS) | 0 | — |
| University of Nantes | 0 | — |
| EULGI UNIV IND ACAD COOPERATION FOUND | 0 | — |
| Bionavitas | 0 | — |
Where to take this next
The landscape points to a concentrated top tier, a still-accelerating filing rate through 2024, and thinner claim density in several adjacent sensor branches.
Map freedom-to-operate against the leading assignee
With 50 records held by the top-ranked filer alone, any new sensor-integration filing should be checked against that portfolio's claim scope before drafting begins.
Explore assignee portfolios in EurekaProbe the under-claimed branches directly
Signal isolation, probe-position calibration and LED integration show lower claim density than core bioreactor hardware, making them worth a targeted prior-art scan.
Run a white-space search in EurekaTrack the 2024 filing surge as it publishes forward
Because 2025-2026 filings are still publishing, revisiting this trend in six to twelve months will clarify whether the +900% acceleration into 2024 continued or plateaued.
Set up filing alerts in EurekaCommon questions on this landscape
The ranking covers 100 assignees across 389 published records, with a clear leader holding 50 records and a steep drop to fifth place at 10 and tenth place at 9. The top 5 assignees combined hold 32.6% of all records, and the top 10 hold 44.2%, so leadership is concentrated at the very top but a long tail of smaller filers accounts for over half the field. This makes the space one where a new entrant can still find room, provided it avoids the leader's core claim territory.
Filing activity grew sharply from 3 records in 2021 to 30 records in 2024, a +900% increase over that three-year span, with 2024 standing as the peak year recorded so far. Counts for 2025 and 2026 appear lower, but that reflects the roughly 18-month lag between filing and publication rather than an actual decline. Anyone tracking this space should expect the 2025-2026 figures to rise as more filings publish.
C12M bioreactor and enzyme apparatus claims appear in 96.7% of the 389 records, which is expected given the search scope, while C12N microorganism and genetic-engineering claims appear in 29.8%. Smaller but notable shares touch separation processes (11.1%), horticulture (9.8%), fermentation (9.3%), water treatment (6.4%), enzymatic or DNA measurement (3.3%) and LED light sources (2.6%). Because a single record can carry several IPC classes, these percentages add up to more than 100%, so they should be read as overlap indicators, not a strict breakdown.
The United States receives the largest share of filings at 107 records, followed by the WIPO/PCT route at 66 and the European Patent Office at 50, with Israel, Australia and India each receiving between roughly 28 and 31 records. That spread indicates applicants in this field commonly pursue multi-jurisdiction coverage rather than relying on a single home filing. A company weighing where to file first should look at where its likely competitors and customers are concentrated within that same office breakdown.
US20050260553A1, assigned to Greenfuel Technologies Corporation, is the second most-cited record in this dataset at 255 citations and covers a photobioreactor apparatus used within an integrated combustion and gas-treatment system that removes pollutants from flue gas using photosynthetic organisms. Its claims are foundational to gas-treatment-oriented photobioreactor design, so any new filing touching combined culture-and-pollutant-mitigation systems should map its own claims against this filing's scope early. It does not, on its own, block dedicated sensor-hardware claims such as probe positioning or signal isolation that sit outside its gas-treatment framing.
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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.