Earth Observation Patents: Who Leads, Where the Gaps Are 2026
- 31.5% concentration at the top. The five leading assignees hold 360 of the 1,143 records in scope, but the ranked field runs to 100 companies with a long tail of single- and few-filing entrants.
- Filings cooled from a 2021 peak. Filings rose to 143 in 2021 then fell 38% to 89 by 2024 — the last year the trend can be read as complete, since publication lags filing by roughly 18 months.
- Spacecraft systems dominate the claim space. B64G (cosmonautics & spacecraft) appears on 39.3% of records and H04B (transmission) on 23.6%, while image-recognition and antenna classes remain comparatively open.
Filing growth compares 2021 (143 records) with 2024 (89) — 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 1,143 records in scope (CR5), not by the ranked leaders only.
What this landscape covers
This dataset tracks patent families published between 2015 and mid-2026 that combine Earth observation or satellite-based observation with a remote sensing payload, image acquisition, ground antenna, telemetry control, launch vehicle or space communication element. It spans 1,143 records drawn from six major receiving offices, giving a cross-jurisdiction view of where observation hardware, downlink infrastructure and image-processing claims are actually being filed rather than just announced.
The scope deliberately pairs the spacecraft and payload side of the field with the ground segment — antennas, telemetry and communication links — because commercial Earth observation businesses live or die on both halves at once. Filing activity, assignee concentration and IPC composition below reflect that combined view.
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Filing trend and technology mix
Two views of the same 1,143 records: how filing volume has moved year over year, and which IPC subclasses carry the claim density.
Filings rose to a 2021 peak, then eased
Annual filings climbed from 80 in 2017 to a peak of 143 in 2021, then declined to 89 by 2024 — a 38% drop over that three-year span. Treat 2025 and 2026 figures as provisional; publication lag means recent-year counts will keep rising as more filings publish.
Spacecraft and transmission classes lead
B64G (cosmonautics & spacecraft) sits on 39.3% of records and H04B (transmission) on 23.6%, followed by G01S (radar, sonar & positioning) at 15.8%. Image-processing classes (G06T, G06V, H04N) and antennas (H01Q) each sit under 12%, marking them as comparatively less crowded relative to the platform and link classes above them.
Shares are the percentage of the 1,143 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Earth Observation & Remote Sensing Patent Landscape with Eureka
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NZ608940A — Satellite system and method for circumpolar latitudes
A two-satellite constellation and base station configuration for continuous Earth observation and communications coverage above 60° latitude, specifying orbital inclination between 70° and 90° and eccentricity between 0.275 and 0.45 to hold roughly 20° elevation or greater across the service area.Filed by Telesat Canada; published 2015-06-26.
View full record| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20070016079A1 | Hyperspectral imaging in diabetes and peripheral vascular disease | 350 |
| 2 | US20170250751A1 | System for planetary-scale analytics | 280 |
| 3 | US20150044098A1 | Hyperspectral imaging systems, units, and methods | 263 |
| 4 | US20060247514A1 | Medical hyperspectral imaging for evaluation of tissue and tumor | 194 |
| 5 | US20180341894A1 | Innovative satellite scheduling method based on genetic algorithms and simulated annealing and related missio… | 190 |
| 6 | US7889129B2 | Lightweight space-fed active phased array antenna system | 184 |
| 7 | US20050135724A1 | Integrated glass ceramic systems | 157 |
| 8 | US20140064554A1 | Image station matching, preprocessing, spatial registration and change detection with multi-temporal remotely… | 156 |
| 9 | WO2024042508A1 | Geosynchronization of an aerial image using localizing multiple features | 147 |
| 10 | US20150051498A1 | Methods and apparatus for coaxial imaging of multiple wavelengths | 138 |
Citation counts reward older filings inside this corpus; read them as a signal of influence within the searched set, not as a ranking of current technical importance.
Each row carries its publication number; clicking a row searches Eureka by that number.
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Three read-outs from the concentration, trend and citation data that matter for where to file and who to watch.
A moderate lead, not a lock-out
The five leading assignees account for 31.5% of all records in scope, rising to 40.8% across the top ten. That leaves the majority of filings spread across a ranked field of 100 companies, meaning freedom-to-operate analysis has to look well past the household names.
Past-peak, not abandoned
Annual filings fell from 143 in 2021 to 89 in 2024. That is a real pullback from peak, not a signal the field is closing — publication lag means 2025-2026 counts are still incomplete and should not be read as a continued decline.
Hyperspectral imaging carries outsized influence
The most-cited records in this corpus cluster around hyperspectral imaging methods, including applications adapted from medical tissue analysis. Their citation counts reflect years in the searched literature, not necessarily present-day commercial relevance — check filing date before treating a high citation count as a live blocking risk.
The link layer is nearly as crowded as the platform
H04B (transmission, general) appears on 23.6% of records, second only to B64G spacecraft claims at 39.3%. Antenna-specific claims under H01Q sit far lower at 7.0%, suggesting antenna hardware itself is less contested than the transmission schemes running over it.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to earth observation & remote sensing patent landscape, with the prior art for and against each one.
Who is filing, and where the gate sits
The ranked field covers 100 assignees counted by patent family. A handful of constellation operators and imaging specialists sit at the top, but momentum data shows even leaders pulling back in the latest year — consistent with the broader post-2021 slowdown rather than any single company's retreat.
A constellation-operator leads by volume
The top-ranked assignee holds 117 records, well ahead of fifth place at 40. That gap suggests a genuinely dominant filer at the head of the field rather than a tightly bunched top five.
Even the leaders are filing less this year
The leading assignee's latest-year count fell 75% year over year, and several other tracked assignees show zero filings in the latest year. Read this alongside the 18-month publication lag: some of this is real pullback, some is simply filings still working through to publication.
Collaboration is limited and mostly intra-group
Only 10 co-assignee pairs appear in this dataset, and the strongest pairing links a parent company to its own regional subsidiary rather than two independent firms. Cross-company joint filing is not yet a structural feature of this field.
| Assignee | Recent year | YoY |
|---|---|---|
| ICEYE Oy | 2 | -75% |
| Mitsubishi Electric Corp | 1 | -75% |
| TELESAT CANADA | 0 | — |
| Urugus SA | 0 | — |
| HyperMed Imaging Inc | 0 | — |
| Centre National d'Études Spatiales (CNES) | 0 | — |
| MDA SYST LTD | 0 | — |
| EURECO TECH | 0 | — |
Where to take this
Use the dataset views below to move from landscape to position.
Map freedom-to-operate against the top ten
With 40.8% of records held by ten assignees, a targeted FTO pass against that group before broader clearance work will catch most of the concentrated risk quickly.
Explore assignee ranking →Track the ground-segment claim space
H04B and H01Q claims are less crowded than B64G spacecraft claims — worth a closer read if your filing strategy centres on links and antennas rather than platforms.
Review IPC breakdown →Draft against the white space, not the leader
Use Patsnap Eureka to check candidate claim language against the under-claimed branches identified here before committing drafting resources to already-dense platform claims.
Open Patsnap Eureka →Common questions on Earth observation patents
The dataset's leading assignee holds 117 of the 1,143 records in scope, well ahead of the fifth-ranked company at 40. The top five combined account for 31.5% of all records, and the top ten for 40.8%, but the ranked field extends to 100 companies, so a large share of activity sits outside the leaders. Anyone doing competitive tracking should look at the full ranked list rather than assume the top few names cover the field.
Filings rose from 80 in 2017 to a peak of 143 in 2021, then fell to 89 by 2024, a 38% decline over that three-year span. 2024 is the most recent year that can be treated as complete because publication typically lags filing by about 18 months, so the apparent drop-off in 2025 and 2026 figures is largely an artefact of records not yet publishing rather than a further real decline. The honest read is a pullback from a 2021 peak, not a field in retreat.
The dominant IPC subclass is B64G, cosmonautics and spacecraft, appearing on 39.3% of the 1,143 records in scope. H04B (transmission) follows at 23.6% and G01S (radar, sonar and positioning) at 15.8%, with image-processing classes G06T, G06V and H04N each under 12%. Because a single record can carry multiple IPC classes, these percentages add up to more than 100% and should not be summed.
Compared with the dense spacecraft and transmission classes, ground antenna beam-steering for low-earth-orbit handoff, cross-constellation telemetry interoperability and automated tasking or scheduling algorithms show notably lower filing density in this dataset. That does not guarantee an area is unclaimed everywhere, but it does mean fewer prior-art blocks currently sit there relative to platform-level spacecraft claims. A first claim in these branches should specifically differentiate from the closest-cited records rather than assume open ground.
NZ608940A, assigned to Telesat Canada and published in 2015, claims a two-satellite constellation configuration for continuous Earth observation and communications coverage above 60 degrees latitude, specifying orbital inclination between 70 and 90 degrees and eccentricity between 0.275 and 0.45. It also covers the associated base station transmit/receive method. Anyone designing a polar or high-latitude constellation with similar orbital parameters and a matching ground base station should review this claim set before finalising an architecture.
Moderately concentrated but not locked up: the top five assignees hold 31.5% of the 1,143 records in scope, and the top ten hold 40.8%. That leaves a majority of filings distributed across a ranked field of 100 companies, including many single- or few-filing entrants. Firms entering the space should expect to clear against a long tail as well as the recognised leaders.
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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.