Hyperspectral Imaging Patents: Who Leads, Where the Gaps Are 2026
- 40.9% of all 93 records sit with just five assignees, while a long tail of single-filing entrants files the rest.
- Filing peaked in 2024 at 13 records and 2022's 12 mark a midpoint after which growth has gone flat rather than climbing.
- G01J radiation-measurement classes cover 65.6% of records but only 12.9% touch G02B optical elements, leaving the optics side comparatively open.
What this landscape covers
This dataset tracks patent families filed against hyperspectral imaging systems — spectral filter arrays, snapshot and pushbroom capture architectures, radiometric calibration methods, and the classification models built on top of the resulting cubes. The search combines title/abstract language on spectral imaging with claim-and-description language on calibration, spatial-spectral tradeoffs, data volume handling, and classification, restricted to G01J, H04N23 and G06V20 IPC classes. Coverage runs from 2015 through the 2026-07-31 data cut-off.
Ninety-three records make up the full scope, ranked across 80 distinct assignees. Publication lags filing by roughly 18 months, so the most recent filing years in the trend below are understated and should be read as a floor, not a ceiling.
Filing trend and technology composition
Two views of the same 93 records: how filing activity has moved year over year, and which IPC subclasses the claim language actually falls under.
Filing trend, 2017-2026
Filings rose from a single record in 2017 to a peak of 13 in 2024. With 2022 sitting at 12, the climb from mid-decade to peak was shallow, and the partial 2026 count (3 so far) is consistent with a plateau rather than renewed acceleration once publication lag is accounted for.
IPC subclass composition
G01J (radiation and light measurement) appears in 65.6% of records, confirming that most filings are anchored in core spectral-sensing claims. G01N (material analysis) and G06V (image/video recognition) each cover roughly two in five records, showing that classification and downstream analysis claims are now nearly as common as the sensing hardware itself. Because records can carry multiple classes, these shares sum to well over 100% and should be read individually, not added together.
Shares are the percentage of the 93 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Hyperspectral Imaging Systems with Eureka
This page is one run against one query. Ask Eureka your own question about hyperspectral imaging systems and every answer comes back with the patent numbers behind it.
Try EurekaMost-cited records and a recent representative filing
Curve-based radiometric calibration method and system of spaceborne hyperspectral imager (US12392660B1)
The disclosure introduces a radiometric calibration coefficient curve describing sensor response across all bands of a hyperspectral camera fitted with a linear variable filter, matching that curve to programmable band-selection imaging. This supports single-band imaging, integral imaging of adjacent bands, and imaging of randomly selected band combinations from one calibration model rather than per-band calibration tables.Filed by Wuhan University, published 2025-08-19 — among the most recent grants in scope.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20160069743A1 | Spectral imaging system for remote and noninvasive detection of target substances using spectral filter array… | 298 |
| 2 | US6008492A | Hyperspectral imaging method and apparatus | 117 |
| 3 | US20170089761A1 | Spectral imaging system for remote and noninvasive detection of target substances using spectral filter array… | 113 |
| 4 | US20050151965A1 | Spectral imaging system | 113 |
| 5 | US20040153284A1 | Method for performing automated in-scene based atmospheric compensation for multi-and hyperspectral imaging s… | 63 |
| 6 | US7369229B2 | Spectral imaging system | 55 |
| 7 | WO2015195746A1 | Spectral imaging system for remote and noninvasive detection of target substances using spectral filter array… | 53 |
| 8 | US9551616B2 | Spectral imaging system for remote and noninvasive detection of target substances using spectral filter array… | 53 |
| 9 | US20190195689A1 | Spectral imaging system for remote and noninvasive detection of target substances using spectral filter array… | 32 |
| 10 | US6909815B2 | Method for performing automated in-scene based atmospheric compensation for multi-and hyperspectral imaging s… | 24 |
Citation counts favour older records simply by virtue of time in the corpus; treat them as a signal of influence on later filings, not 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 family counts, IPC shares and receiving-office data are read together.
Leadership is concentrated but not locked
The top five assignees combine for 40.9% of all 93 records in scope, and the top ten reach 54.8%. That leaves nearly half the field held by a long tail of single- or double-filing entrants, which is unusual for a sensor category this specific and suggests the leaders have not yet closed off adjacent claim space.
Filing activity clusters in China and the US
China leads receiving-office counts at 30, followed by the United States at 23, with India, WIPO/PCT, EPO and Canada trailing behind. The gap between the top two offices and the rest suggests domestic filing strategies dominate over PCT-first approaches in this field.
Sensing claims still dominate over optics
G01J radiation-measurement claims cover 65.6% of records while G02B optical-element claims cover just 12.9%. Given that spectral filter architecture and lens design sit inside G02B, this gap points to comparatively thin claim coverage on the optical-path side relative to the sensing and calibration side.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to hyperspectral imaging systems, with the prior art for and against each one.
Who is filing, and where momentum sits
The ranking covers 80 assignees across the 93 records in scope. The leader holds 21 records; by fifth place that figure is down to 4, and by tenth place to 2 — a steep drop-off consistent with one dominant filer ahead of a broad, thinly-spread field.
One filer well ahead of the field
The top-ranked assignee holds 21 of the 93 records in scope, more than five times the fifth-place count of 4. That gap is wide enough that competitive analysis in this space should treat the leader as a separate category from everyone else.
A shallow drop-off after the leader
Fifth place holds 4 records and tenth place holds 2, meaning the assignees ranked six through ten are essentially tied. This is a crowded mid-field rather than a clear second tier, and any of these filers could move up with a modest filing push.
Co-filing is limited and centred on one institution
Only four co-assignee pairs appear in the dataset, and the strongest links all involve the same research institute paired with different individual co-inventors. Joint filing is not yet a common strategy in this field outside that one cluster.
| Assignee | Recent year | YoY |
|---|---|---|
| SRM UNIV | 1 | — |
| INNOPIX | 0 | — |
| FLORIDA ENVIRONMENTAL RESEARCH INSTITUTE | 0 | — |
| VOYAGE81 LTD | 0 | — |
| KESTREL CORP | 0 | — |
| Wuhan University | 0 | -100% |
| SPECTRAL SCIENCES INC | 0 | — |
| MDA SYST LTD | 0 | -100% |
Where to take this analysis
The dataset points to specific next steps depending on whether the goal is freedom-to-operate, portfolio benchmarking, or identifying where to file next.
Check freedom-to-operate against the leader's claims
With one assignee holding 21 of 93 records, any new filing in calibration or classification should first be checked against that portfolio's specific claim scope rather than the field average.
Run a claim comparison in EurekaMap the optics white space in detail
G02B coverage sits at 12.9% against 65.6% for G01J, a gap worth investigating claim-by-claim before assuming it is genuinely open.
Explore IPC gaps in EurekaTrack the mid-field for fast movers
The near-tie between fifth and tenth place means a small filing increase could reshuffle rankings; monitoring this group over the next few publication cycles is worthwhile.
Set up assignee tracking in EurekaCommon questions about hyperspectral imaging patents
One assignee leads the ranked field with 21 of the 93 records in scope, well ahead of the fifth-place holder at 4 records. The drop-off after the leader is steep, then flattens into a broad mid-field where tenth place holds only 2 records. This pattern indicates a single dominant filer operating alongside a large number of smaller, often single-filing entrants rather than a handful of evenly matched competitors.
Filing activity rose from 1 record in 2017 to a peak of 13 in 2024, with 2022 already at 12 records. Because the growth from 2022 to the 2024 peak was shallow, and because publication lag of roughly 18 months means the most recent years understate true filing activity, the honest read is that growth has flattened rather than continuing to accelerate. The partial 2026 figure of 3 records is not enough to call a trend either way yet.
The dataset spans radiation and light measurement (G01J, 65.6% of records), material analysis and testing (G01N, 45.2%), image and video recognition (G06V, 40.9%), diagnostic and surgical applications (A61B, 21.5%), AI-based computing (G06N, 19.4%), optical elements (G02B, 12.9%), image data processing (G06T, 11.8%) and data recognition (G06K, 10.8%). Because a single record can carry multiple IPC classes, these shares add up to well over 100% and each should be read on its own rather than summed.
China leads as a receiving office with 30 filings, followed by the United States at 23. India, the WIPO/PCT route, the European Patent Office and Canada follow at lower volumes. The gap between China and the US on one hand and the remaining offices on the other suggests filers are prioritising domestic protection in their home markets over broad international PCT strategy in this particular field.
The clearest gap sits in optical-path and filter-array hardware: G02B optical-element claims cover only 12.9% of records against 65.6% for core G01J sensing claims, even though snapshot filter arrays and linear-variable-filter band selection are active engineering problems in the field. Co-assignee filing is also limited to just 4 pairs, meaning joint development claims are rare. A first claim in this space would likely target the optical path specifically — for example, a filter-array geometry or band-selection mechanism — rather than the sensing or calibration methods that are already densely claimed.
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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.