Eureka on the web
When you want the answer in the next five minutes.
The agent works the prompt against patents and technical literature, citing every source.
Run your analysis now →Filing growth compares 2021 (2 records) with 2024 (0) — 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.
Fertigation injection and nutrient dosing systems sit at the intersection of irrigation hardware and closed-loop control: mixing tanks, dosing pumps, venturi injectors and the electrical-conductivity or acid-dosing logic that decides how much nutrient solution reaches a crop. This dataset tracks 29 published records filed between 2015 and the 2026 cut-off, spanning receiving offices in the United States, WIPO, Europe and several national offices. It captures both mechanical dosing hardware and the control software layer that schedules nutrient recipes.
The scope pulls records that combine fertigation or nutrient-dosing language with a specific mechanism — venturi injection, EC control, acid dosing, precipitation handling, mixing-tank design or recipe scheduling — so the set skews toward systems claims rather than broad irrigation method patents.
Two views of the same 29-record set: activity over time, and how records distribute across IPC subclasses.
Filings were absent in 2017, built toward a peak of 10 in 2022, and the tracked span from 2021 (2 filings) to 2024 (0 filings) shows a -100% change. Because publication lags filing by roughly 18 months, the 2025-2026 figures are still filling in and should not be read as a continued decline.
A01G (horticulture and forestry) appears in 96.6% of the 29 records, effectively defining the field. G05D (control of non-electric variables) reaches 20.7%, while F25D, A61L, B08B, B65D, C02F and C25B each sit at 3.4-6.9%, marking narrow but distinct technical branches rather than noise.
Shares are the percentage of the 29 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
This page is one run against one query. Ask Eureka your own question about fertigation injection and nutrient dosing and every answer comes back with the patent numbers behind it.
Try EurekaA nutrient dosing system built around a mixing tank that receives a solvent and at least one nutrient medium, paired with one or more dosing devices. Each dosing device holds its own nutrient tank, a reciprocating pump wired between that tank and the mixing tank, and an actuator under controller command to load and dispense nutrient medium on a scheduled basis.Filed by FARM3, published 2023-09-14.


| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20150223418A1 | Light-weight modular adjustable vertical hydroponic growing system and method | 192 |
| 2 | US9591814B2 | Light-weight modular adjustable vertical hydroponic growing system and method | 51 |
| 3 | US20220225579A1 | Automated plant growing facility | 12 |
| 4 | WO2021059015A2 | Systems, methods, and devices for autonomous farming | 12 |
| 5 | US20230026903A1 | System and method for propagating seeds to seedlings within an agricultural facility | 9 |
| 6 | WO2015123587A1 | Light-weight modular adjustable vertical hydroponic growing system and method | 7 |
| 7 | US20220142067A1 | Hydration system for an indoor gardening appliance | 6 |
| 8 | US20240000029A1 | Hydration system for an indoor garden center | 4 |
| 9 | US20230014191A1 | Self-cleaning methods for an indoor gardening appliance | 3 |
| 10 | US20220142073A1 | Indoor garden center with a nutrient cartridge system | 3 |
Citation counts reflect an older-record bias inside this searched corpus; treat them as a signal of influence, not of current commercial weight.
Each row carries its publication number; clicking a row searches Eureka by that number.
When you want the answer in the next five minutes.
The agent works the prompt against patents and technical literature, citing every source.
Run your analysis now →When it has to run inside your own pipeline.
Patent search, landscape analysis and assignee resolution as MCP tools. Drop them into any agent framework, or call REST directly.
Browse MCP servers →Three read-outs from the filing pattern, technology mix and citation profile that matter for a freedom-to-operate or whitespace call.
The ranking covers 9 companies total, not a top-50 or top-100 cut. A single leader holds 11 records while fifth place holds only 2, which means most of the ranked assignees are single- or double-digit filers rather than a broad competitive cluster.
Filings peaked at 10 in 2022 before falling to 0 by 2024, a -100% swing over that three-year span. The most recent two years are still incomplete because publication trails filing by about 18 months, so this should be read as the last confirmed trend point rather than the current state.
A01G covers all but a fraction of the 29 records, with G05D control logic present in 20.7%. The remaining six subclasses each touch 3.4-6.9% of records, indicating narrow, still-open branches around refrigeration, sterilisation, cleaning, packaging, water treatment and electrolytic processing as they apply to dosing systems.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to fertigation injection and nutrient dosing, with the prior art for and against each one.
The ranked assignees split between an agricultural-technology leader and a mix of individual inventors, smaller ag-tech ventures and one large appliance manufacturer testing dosing hardware claims.
One assignee holds 11 of the records in this ranking, well clear of the rest of the field. That gap suggests a filer building a defensive or offensive portfolio around dosing hardware and control logic rather than a market with many comparable filers.
Fifth place in the ranking holds only 2 records, and the co-assignee data shows one recurring pairing of two individual inventors filing together three times. This points to a field where most participants are testing narrow claims rather than building broad families.
The presence of a large household appliance manufacturer among the ranked assignees signals interest in dosing and mixing-tank mechanics from outside traditional agricultural machinery, likely drawing on consumer fluid-handling and control expertise.
| Assignee | Recent year | YoY |
|---|---|---|
| Haier US Appliance Solutions, Inc. | 0 | — |
| FARM3 | 0 | — |
| HERTEL DON | 0 | — |
| COLLINS FRED | 0 | — |
| Iron Ox, Inc. | 0 | — |
| MAUI GREENS INC | 0 | — |
| KATIF TECH LTD | 0 | — |
| VAIBHAV LAXMAN DHASAL | 0 | -100% |
The filing and technology patterns above raise follow-up questions that a broader or narrower search can answer.
With one assignee holding 11 of the ranked records, a claim-by-claim review of that portfolio is the first filter before designing new dosing hardware.
Run a claims comparison in EurekaG05D control logic sits at 20.7% of records while several mechanical and chemical branches barely register, suggesting room for narrowly scoped control-layer claims.
Explore white space in EurekaAmong the 9 assignees in this ranking, one company leads clearly with 11 records, while fifth place holds only 2. That gap indicates a single dominant filer rather than a crowded competitive field. Anyone evaluating freedom to operate should start by reviewing that leader's claim scope before looking at the smaller filers.
Filings peaked in 2022 at 10 records, and the tracked span from 2021 (2 filings) to 2024 (0 filings) shows a -100% change. However, publication typically lags filing by about 18 months, so the 2025 and 2026 figures in this dataset are still incomplete and should not be treated as confirmation of a continuing drop.
A01G, the horticulture and forestry classification, appears in 96.6% of the 29 records in scope, making it the defining category for this field. G05D, covering control of non-electric variables, appears in 20.7% of records. Several other classes, including refrigeration, sterilisation, water treatment and electrolytic production, each appear in only one or two records, marking them as narrow but distinct sub-branches.
US20230284575A1, filed by FARM3, describes a nutrient dosing system built around a mixing tank fed by one or more dosing devices, each with its own nutrient tank, a reciprocating pump and an actuator under controller command. The claims center on the mechanical arrangement of tank-to-pump-to-mixing-tank fluid paths combined with a controller that schedules loading and dispensing. Anyone designing a similar multi-tank dosing rig should map their fluid path and control sequence against this filing specifically, rather than assuming the broader nutrient-dosing category is blocked.
The technology composition data shows several IPC subclasses with only one or two records each, including sterilisation, cleaning, packaging, water treatment and electrolytic production as applied to dosing systems. These thin counts, set against A01G's near-total presence, suggest that hardware and chemistry adjacent to core dosing mechanics remain lightly claimed. A first filing that ties recipe scheduling or EC-triggered control tightly to one of these adjacent classes would sit in comparatively open territory.
Go past this page: query the whole fertigation injection and nutrient dosing corpus yourself, in your own scope.
Every answer comes back with patent numbers you can open.
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.