Horticultural LED Reliability Patents: Leaders & White Space 2026
- Filing activity peaked in 2019 and has not returned to that level. the dataset shows a bulge year followed by a flat-to-declining trend through the current midpoint, not a rising field.
- China dominates the filing venue. fifteen of twenty-one records were filed there against five in the United States and one at the EPO, concentrating prosecution risk and prior art in one jurisdiction.
- Claims cluster on the fixture, not the failure mode. F21V lighting-device-component and F21Y light-source-form codes cover nearly every record, while degradation-specific mechanisms remain thinly claimed.
Filing growth compares 2021 (5 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 21 records in scope (CR5), not by the ranked leaders only.
What this dataset covers
This landscape tracks patent families at the intersection of horticultural lighting and reliability engineering: filings that combine grow-light or plant-lighting terminology with explicit durability language such as lumen maintenance, LED degradation, humidity resistance or service life, restricted to lighting-device and LED-source IPC codes. It is a narrow, mechanism-specific slice of the broader horticultural lighting field, not a count of every grow-light patent filed.
Twenty-one families is a small corpus. Read the trend and technology splits as directional signal about where reliability claims are being written, not as a market-size figure. Publication lag of roughly eighteen months means the most recent filing years will look thinner than they eventually turn out to be.
Filing trend and technology composition
Two views of the same 21-family corpus: how filing activity has moved year over year, and which IPC subclasses those filings actually sit in.
A 2019 peak, then a flat-to-declining line
Annual filings rose to seven in 2019, the high point of the window, then fell back. The 2022 midpoint sits at just one filing, and the years since have not recovered to peak levels. Combined with the partial, near-zero count in the final year, the honest reading is a technology area that had a short burst of reliability-focused filing rather than sustained investment.
Fixture and light-source codes dominate
F21V (lighting device components) appears in all 21 records and F21Y (light-source form) in 19, meaning almost every filing is anchored to a physical fixture or source-form claim. A01G (horticulture and forestry) shows up in 17, confirming the plant-lighting application, but degradation-specific codes such as H05B circuit protection or F21K non-electric/LED sources appear in only one or two records each — the failure-mechanism side of the claim space is thin relative to the hardware side.
Shares are the percentage of the 21 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Horticultural LED Reliability and Durability with Eureka
This page is one run against one query. Ask Eureka your own question about horticultural led reliability and durability and every answer comes back with the patent numbers behind it.
Try EurekaRepresentative filing
Annular LED grow light
An annular LED grow light comprising a radiator, a light source board and a power supply box, with LED lamp beads arranged in an annular array about a center on a PCB light board. The stated benefit is a more even photosynthetic photon flux density (PPFD) distribution, a larger effective irradiated area, and reduced cost versus non-annular arrangements.Filed by Shenzhen Aurora Technology Limited; granted 2023-07-04.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20160374273A1 | Daisy Chain Grow Light | 12 |
| 2 | CN110285359A | 一种新型可调节光谱的植物照明用LED灯 | 7 |
| 3 | US10143144B2 | Daisy chain grow light | 3 |
| 4 | CN210219355U | 一种水冷型LED植物照明灯具 | 2 |
| 5 | CN219912797U | 一种可拆卸式LED植物照明灯具 | 1 |
| 6 | US11690327B2 | Annular LED grow light | 1 |
| 7 | US10638670B2 | Full spectrum LED plant illumination lamp with a lens structure | 1 |
| 8 | CN208983093U | 一种植物照明LED灯具 | 1 |
Citation counts favour older filings simply because they have had longer to accumulate citations inside the searched corpus — treat this as a signal of influence on later filers, not of current commercial 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. Publication numbers are shown where the record carries one (8 of 8 rows); clicking a row searches Eureka by that number.
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Browse MCP servers →What the numbers mean for a filing decision
Three findings that change where a reliability-focused filer should — or should not — spend claim effort.
The peak has already passed
Filing activity crested at seven records in 2019 and has since dropped to a single filing at the 2022 midpoint. A short filing burst followed by a plateau usually means early entrants staked out the obvious hardware claims and later filers found less open ground, not that interest in the underlying problem disappeared.
Prosecution and prior art concentrate in one venue
Fifteen of the twenty-one families were filed in China, five in the United States, and one at the EPO. Any freedom-to-operate search for this mechanism space has to weight Chinese utility-model and invention filings heavily, since a US-only search would miss the majority of relevant prior art.
Hardware claims outnumber mechanism claims
Every record in the set carries an F21V lighting-device-component code, and nearly all carry F21Y light-source-form. Codes tied directly to degradation mechanisms or protective circuitry — H05B, F21K — appear in only one or two records apiece, suggesting the failure-mode itself is still lightly claimed relative to the fixtures that house it.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to horticultural led reliability and durability, with the prior art for and against each one.
Assignee landscape
No single assignee shows filing momentum in the most recent year — every named entity in the recent-year view sits at zero — which fits a field that peaked in 2019 and has cooled since. That makes this a landscape of past claim-staking rather than an active filing race.
A dormant leaderboard
Every assignee tracked for recent-year momentum, from Fujian-based agritech firms to a Boulder, Colorado lamp maker, shows zero filings in the latest year. Reliability-specific claim activity has gone quiet across the board rather than concentrating around one aggressive filer.
Chinese manufacturers hold the bulk of filings
The assignee list is dominated by Chinese lighting and agritech manufacturers, consistent with China's 15-of-21 share of receiving offices. US and EPO filers are a minority presence in this specific reliability-mechanism slice.
A small, fragmented field
With only 21 families across the entire window, no assignee has built a dominant position purely on volume. That leaves room for a well-targeted filing to establish a meaningful share of the reliability-mechanism claim space without displacing an entrenched incumbent.
| Assignee | Recent year | YoY |
|---|---|---|
| Fujian Sanan Sino-Science Photobiotech Co., Ltd. | 0 | — |
| Yuyao Tanghong International Trade Co., Ltd. | 0 | — |
| BOULDER LAMP INC | 0 | — |
| Zhengzhou Sunrise New Energy Technology Co., Ltd. | 0 | — |
| Yancheng Dongzi Optoelectronics Technology Co., Ltd. | 0 | — |
| Zhuhai Meiguangyuan Technology Co., Ltd. | 0 | — |
| Shenzhen Yaruian Optoelectronics Co., Ltd. | 0 | — |
| Shenzhen Master Optoelectronics Technology Co., Ltd. | 0 | -100% |
Where to take this analysis
The trend and IPC splits point to specific next checks before committing R&D or filing budget.
Run a freedom-to-operate check weighted to China
With 15 of 21 families filed in China, a US-centric FTO search will miss most of the relevant prior art in this mechanism space. Prioritise Chinese-language claim review before finalising a design.
Explore in EurekaProbe the degradation-mechanism codes directly
H05B and F21K appear in only one or two records each despite the broader field covering 21 families. A targeted search on protective-circuitry and non-electric LED source claims may surface a genuinely open branch.
Explore in EurekaWatch for a second filing wave
The 2019 peak followed by a decline to one filing at the midpoint is the shape of a field waiting for a trigger — a new LED chemistry or a regulatory push on grow-light lifetime claims could restart filing. Track quarterly rather than annually given the small base.
Explore in EurekaCommon questions on horticultural LED reliability patents
In this landscape, a record has to combine horticultural lighting terminology — grow light, plant lighting, or horticultural LED — with explicit durability language such as lumen maintenance, LED degradation, humidity resistance, or service life, and sit within lighting-device or LED-source IPC classes. That combination excludes general grow-light hardware patents that do not address a failure mode, and it excludes general LED reliability patents that are not applied to horticulture. The result is a narrow but mechanism-specific 21-family corpus rather than the full grow-light patent universe.
The dataset shows seven filings in 2019, the high point of the 2015-2026 window, followed by a drop to a single filing by the 2022 midpoint. A likely explanation is that early filers claimed the obvious fixture-level durability improvements — sealed housings, heat sinks, annular light-source arrays — leaving less open ground for later entrants. It is also possible that reliability engineering shifted toward trade secret or manufacturing-process routes that do not show up as patent filings. Because publication lags filing by roughly eighteen months, the most recent one to two years in this trend will look thinner than they eventually turn out to be.
The assignee base is dominated by Chinese lighting and agritech manufacturers, consistent with China accounting for 15 of the 21 receiving-office filings, alongside a smaller US presence. None of the named assignees tracked for recent-year momentum show any filings in the latest year, meaning no single company is currently building an active lead through new filings. The field is best read as fragmented and largely settled rather than led by one dominant filer.
The IPC composition shows heavy coverage of fixture-level codes — F21V lighting-device components appear in all 21 records — but thin coverage of failure-mechanism codes such as H05B electric heating and lighting circuits or F21K non-electric and LED light sources, each appearing in only one or two records. That gap points to under-claimed branches around humidity-sealed driver enclosures, thermal-cycling protection at the phosphor-LED junction, and lumen-maintenance feedback circuitry. A first filing in those branches would likely face less dense prior art than a further fixture-shape claim.
Citation counts in this corpus, such as the twelve citations on the Daisy Chain Grow Light filing, mainly reflect how long a record has been available to be cited, not how commercially important it is today. Older filings accumulate citations simply by being in the corpus longer, so a highly cited 2016-era patent is not automatically more relevant than a recent, less-cited one addressing the same problem. Use citation rank as a map of which claims later filers had to design around, and pair it with the filing-trend and IPC data before drawing conclusions about current importance.
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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.