Smart Irrigation Patents: Top Companies & Filing Trends 2026
- Filings are still accelerating, not maturing — output roughly quadrupled from a 2022 midpoint of 9 to 41 in the most recent (partial) year, with 2025 the peak year so far at 57.
- India leads by receiving office, with 129 records well ahead of China's 45 and the US's 29 — filing strategy here is not US-centric the way it is in many hardware fields.
- Control hardware sits behind one heavily-cited anchor patent, US5927603A, cited 481 times, while the rest of the most-cited set sits an order of magnitude lower — influence is concentrated in one closed-loop control lineage.
Filing growth compares 2021 (4 records) with 2024 (25) — 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 256 records in scope (CR5), not by the ranked leaders only.
What the smart irrigation patent record actually shows
The dataset covers 256 patent families filed against a search string that combines smart and precision irrigation terminology with control-system and sensor-scheduling claim language, restricted to irrigation-specific and control-system IPC classes. Coverage runs from 2015 through a partial 2026, and because publication typically lags filing by around 18 months, the most recent one to two years understate true filing activity. The technology composition is dominated by A01G (horticulture and irrigation apparatus), present in nearly every record, but a large share of filings also carry G06Q, G05B and G06N classes — meaning most modern smart irrigation filings are not pure plumbing claims but pair irrigation hardware with data processing, control logic or AI-driven scheduling.
That classification overlap is the first signal for a claim strategist: irrigation control has become a data and decision-making problem as much as a hydraulic one, and freedom-to-operate work needs to check adjacent computing and control classes, not just A01G.
Filing trend and technology mix
Two views of the same 256-family dataset: how filing volume has moved year over year, and how those filings split across IPC subclasses.
Filing trend, 2017-2026
Filings grew from 17 in 2017 to a midpoint of 9 in 2022 before climbing sharply to 41 in the most recent partial year, with 2025 the peak so far at 57. The 2022 dip followed by a steep climb suggests a second wave of filing activity — likely tied to AI-driven scheduling and sensor-based control entering the claim language — rather than a single steady trend line.
Technology composition by IPC subclass
A01G is present in almost every record, as expected given the search scope, but the presence of G06Q, G05B and G06N in a majority of filings shows that commerce/data-processing and AI-model classifications now ride alongside irrigation hardware claims in most new applications.
Shares are the percentage of the 256 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Smart Irrigation System Precision Agriculture with Eureka
This page is one run against one query. Ask Eureka your own question about smart irrigation system precision agriculture and every answer comes back with the patent numbers behind it.
Try EurekaThe most-cited records in this landscape
Low cost precision irrigation system with passive valves and portable adjusting device
An adjusting device for a passive drip irrigation valve enables precision irrigation without powered actuators at every emitter. The device body is hand-held or robot-attachable, with a manipulator assembly combining coarse alignment with a fine actuator that rotates the passive valve by a specified angle — shifting cost and complexity from distributed electronics to a portable, reusable adjustment tool.Filed by The Regents of the University of California, published 2019-01-10 as US20190008103A1.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US5927603A | Closed loop control system, sensing apparatus and fluid application system for a precision irrigation device | 481 |
| 2 | US6975245B1 | Real-time data acquisition and telemetry based irrigation control system | 82 |
| 3 | US20140326801A1 | System and methods for monitoring leaf temperature for prediction of plant water status | 48 |
| 4 | US20200214231A1 | Methods and systems for irrigation guidance | 43 |
| 5 | CN103918528A | 一种精准化灌溉施肥智能控制方法及装置 | 38 |
| 6 | US20200296906A1 | Irrigation system control with predictive water balance capabilities | 31 |
| 7 | CN103814795A | 稻田自动化智能灌溉系统以及采用该系统进行农田灌溉的方法 | 30 |
| 8 | CN115804334A | 一种基于数字孪生的农田灌溉智慧决策系统 | 29 |
| 9 | CN109934515A | 一种作物精量灌溉决策方法及系统 | 25 |
| 10 | WO2019008570A1 | Methods and systems for irrigation guidance | 25 |
Citation counts reflect influence within the searched corpus and skew toward older filings; treat them as a marker of foundational status, not current relevance.
Patent titles are shown in the language they were filed in, not translated, so that each record stays verifiable against the original filing — a translated title will not match in Eureka or in any national register. 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 filing strategy
Three patterns in the data point toward where competitive pressure is building and where it is not.
Growth is compounding, not plateauing
The climb from a 2022 midpoint of 9 filings to 41 in the most recent partial year, against a peak of 57 in 2025, indicates the field is still in an expansion phase. A partial-year dip should not be read as a slowdown given the 18-month publication lag.
India is the primary filing venue, not a secondary market
India accounts for roughly half of all records by receiving office, ahead of China's 45 and the US's 29. Competitive monitoring built around US and EPO filings alone will miss the majority of activity in this space.
One closed-loop control patent anchors the field
US5927603A's citation count is roughly six times the next most-cited record, US6975245B1 at 82. Later filings in closed-loop and telemetry-based control cluster around, rather than replace, this foundational claim.
Software and AI classes now ride with irrigation hardware
A majority of filings carry at least one of G06Q (data processing), G05B (control systems) or G06N (AI models) alongside A01G, confirming that scheduling logic and decision software are now claimed as part of the irrigation system rather than left as unclaimed background.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to smart irrigation system precision agriculture, with the prior art for and against each one.
Who is filing, and where the collaboration is
Filing activity is spread across universities, agri-tech firms and irrigation equipment makers, with one collaboration standing out and momentum concentrated in a small number of recent filers.
A small set of filers is still actively growing
Most named assignees in the recent-momentum data show zero filings in the latest year, including established names like Manna Irrigation Ltd and Lindsay Corporation. SR University is the exception, with continued output and positive year-over-year growth.
The densest partnership sits in New Zealand agricultural research
The strongest co-assignee pair in the dataset — Auckland UniServices and AgResearch Limited — has filed together five times, the highest co-filing count recorded. That level of repeat collaboration is unusual in this landscape and marks a stable research partnership rather than a one-off joint filing.
Universities and public research bodies are prominent filers
Alongside commercial irrigation equipment makers, university and public-institute assignees appear repeatedly in the ranking, including US and Indian academic institutions. This mix suggests parts of the claim space are still being seeded by research groups rather than locked up by a handful of commercial players.
| Assignee | Recent year | YoY |
|---|---|---|
| SR UNIVERSITY | 3 | +50% |
| MANNA IRRIGATION LTD | 0 | — |
| Gaon Irrigation Systems Ltd. | 0 | — |
| Lovely Professional University, India | 0 | -100% |
| Lindsay Corporation | 0 | — |
| STEPHEN TONY | 0 | — |
| Auckland UniServices Limited | 0 | — |
| The Regents of the University of California | 0 | — |
Where to take this analysis
The dataset points to specific next steps depending on whether the goal is freedom-to-operate, portfolio building or competitive tracking.
Check adjacent IPC classes before filing
Because a majority of records pair A01G with G06Q, G05B or G06N, a claim drafted purely as an irrigation apparatus risks missing prior art sitting in control-systems or AI-model classifications. Run freedom-to-operate searches across all four classes together.
Explore IPC overlap in EurekaWatch India-originated filings closely
With 129 of 256 records tied to the Indian receiving office, competitive intelligence built on US/EPO monitoring alone is incomplete. Build tracking that surfaces Indian assignees and filing activity on a recurring basis.
Set up assignee tracking in EurekaRevisit the closed-loop control anchor patent
US5927603A's outsized citation count marks it as the reference point that later closed-loop and telemetry-based filings build around. Any new control-system claim should be checked against its scope directly.
Review the citation network in EurekaCommon questions about smart irrigation patents
This landscape identifies 256 patent families published between 2015 and mid-2026 that combine smart or precision irrigation terminology with control-system and sensor-scheduling claim language, restricted to irrigation and control-system IPC classes. That figure is specific to this search scope and will be lower than a broader search covering general agricultural sensors or unrelated water-management technology. Because publication lags filing by roughly 18 months, the true count of already-filed but not-yet-published applications for the most recent year is higher than currently visible.
The assignee ranking spans university research groups, public agricultural research institutes, and commercial irrigation equipment makers, with no single company holding an overwhelming majority of filings. The strongest documented collaboration is between Auckland UniServices and AgResearch Limited, with five joint filings, the highest co-filing count in the dataset. Recent filing momentum is concentrated in a small number of active filers such as SR University, while several longer-established names show no filings in the latest year.
India is the leading receiving office with 129 of 256 records, well ahead of China at 45 and the United States at 29, with smaller volumes through WIPO's PCT route, the European Patent Office, and Israel. This distribution means a competitive or freedom-to-operate review focused only on US and European filings would miss the majority of documented activity. Filing strategy in this field is clearly not US-centric, unlike many other agriculture-technology subfields.
The most-cited record is US5927603A, 'Closed loop control system, sensing apparatus and fluid application system for a precision irrigation device,' cited 481 times — roughly six times the citation count of the next record on the list. Its prominence indicates it functions as a foundational reference for closed-loop irrigation control design generally, not that it covers every modern smart irrigation implementation. Newer filings in real-time telemetry, AI-driven scheduling and variable-rate irrigation should be checked against it but are not automatically blocked by it.
Sub-areas adjacent to the core dataset — passive-valve fine-adjustment tooling, leaf-temperature-based water status prediction, telemetry-integrated real-time control, sensor-based deficit irrigation scheduling, and variable-rate prescription mapping — show fewer dense, heavily-cited filings than the core closed-loop control cluster. High filing density elsewhere in the dataset means that claim space is occupied, not that these adjacent branches are unimportant; they are simply less claimed so far and worth a closer freedom-to-operate look before committing a filing strategy.
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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.