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Run your analysis now →https://www.patsnap.com/resources/blog/rd-blog/remote-attestation-protocols-patent-landscape/ · Patsnap · data cut-off 2026-07-31 · downloaded from the live page
Patent Landscape · Trusted Execution EnvironmentsRemote Attestation Protocol Patents: Filing Trends and Leaders
- Concentrated at the top. The five leading assignees hold 34.5% of all 1,788 of the 5,188 records in scope, and the leading ten hold 46.2% (2,395 records) — but a long tail of single- and few-filing entrants fills the rest.
- Filing has cooled from its 2019 peak. Filings ran at 371 in 2019 and fell to 198 by 2024 (down 22% from 255 in 2021), though 2025-2026 counts are still filling in given the usual ~18-month publication lag.
- Core compute claims dominate. G06F (digital data processing) appears on 71.4% of records and H04L (digital transmission) on 56.4%, while AI-adjacent G06N sits at just 0.9% — a gap relative to where attestation is heading.
5,188
Published Records
34%
Top-5 Share of All Records
-22%
Filing Growth 2021→2024
US
Leading Jurisdiction
Filing growth compares 2021 (255 records) with 2024 (198) — 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 5,188 records in scope (CR5), not by the ranked leaders only.
Published byPatsnap Research··7 min readSourced from Patsnap Eureka
Overview
What the remote attestation patent record shows
Remote attestation protocols verify that a device, platform or enclave is running the software and configuration it claims to be running, typically by measuring integrity values into a trusted platform module and presenting them to a verifier under a defined policy. The dataset behind this page spans 5,188 published records filed between 2015 and mid-2026, drawn from filings that combine core attestation vocabulary — remote attestation, integrity measurement, platform configuration register — with the trust infrastructure that makes attestation operational: nonce freshness, endorsement keys, verifier policy, certificate revocation and privacy CA schemes.
Filing activity peaked in 2019 and has since eased, tracking the broader maturation of TPM-based and enclave-based attestation as it moved from research prototypes into shipped platforms. The claim space is not evenly occupied: core data-processing and transmission classes are heavily claimed, while classes tied to AI-based verification and secret-communication techniques remain comparatively open.
Filing volume and technology composition, 2015-2026
Source: Patsnap Eureka. Assignee ranking and totals. Derived from a Patsnap search on Remote Attestation Protocols covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
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The Data
Filing trends and technology composition
Two views of the same 5,188-record dataset: how filing volume has moved year over year, and which IPC subclasses carry the claim density.
Filing trend, 2017-2026
Filings rose to a peak of 371 in 2019, then eased to 198 by 2024 (down 22% from 255 in 2021). 2025 and 2026 figures are still incomplete because publication typically lags filing by around 18 months, so the recent downturn should be read cautiously rather than as a confirmed slowdown.
Technology composition by IPC subclass
G06F (digital data processing) and H04L (digital transmission) together anchor most filings, appearing on 71.4% and 56.4% of the 5,188 records respectively. Wireless-specific claims (H04W, 9.0%) and business-process claims (G06Q, 4.2%) form a second tier, while ciphering (G09C), vending/coin-freed apparatus (G07F), AI-based computing (G06N) and jamming/secret communication (H04K) each sit at or below 1.0% — thin coverage relative to how central AI-assisted verification and covert-channel resistance are becoming to attestation design.
Shares are the percentage of the 5,188 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Source: Patsnap Eureka. Filing trend and technology composition. Derived from a Patsnap search on Remote Attestation Protocols covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.
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Representative and most-cited filings
Representative Filing
Method and apparatus for launching a device (US20190114431A1)
BAIDU USA LLC
The filing describes trusted launch of a device with a trusted launch measurement extended into a platform configuration register, followed by loading a preset enclave and extending an enclave measurement into the same register, and then initiating remote attestation of the enclave to an authentication server based on the trusted platform module.Filed by Baidu USA LLC, published 2019-04-18.
Most-cited records in the dataset
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20170173262A1 | Medical systems, devices and methods | 1,223 |
| 2 | US20090204964A1 | Distributed trusted virtualization platform | 690 |
| 3 | US20160275461A1 | Automated attestation of device integrity using the block chain | 581 |
| 4 | US20150222604A1 | Automated Access, Key, Certificate, and Credential Management | 517 |
| 5 | US20120265976A1 | Secure Network Cloud Architecture | 483 |
| 6 | US20020026575A1 | Account-based digital signature (ABDS) system | 469 |
| 7 | US20100281273A1 | System and Method for Processor-Based Security | 428 |
| 8 | US9083581B1 | System and method for providing resource sharing, synchronizing, media coordination, transcoding, and traffic… | 423 |
| 9 | US20160080502A1 | Methods and systems for controller-based secure session key exchange over unsecured network paths | 379 |
| 10 | US20070033642A1 | Protecting one-time-passwords against man-in-the-middle attacks | 345 |
Citation counts reflect influence within the searched corpus and favour older filings; they are not a measure of current commercial relevance.
Each row carries its publication number; clicking a row searches Eureka by that number.
Source: Patsnap Eureka. Citation counts and representative records. Derived from a Patsnap search on Remote Attestation Protocols covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
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What the numbers mean for filing strategy
Three patterns in the data matter more to a filing or freedom-to-operate decision than the raw counts alone.
Concentration
34.5% / 46.2%
share held by leading 5 / 10 assignees
The top of the field is dense, the rest is open
The five leading assignees hold 34.5% of all 5,188 records and the leading ten hold 46.2%. That leaves more than half the corpus spread across a long tail of single- and few-filing entrants, which is where a new claim is less likely to collide with an incumbent's existing portfolio.
Based on the full 100-company ranking returned by the dataset.
Momentum
255 → 198
filings, 2021 to 2024 (-22%)
Volume has eased from its 2019 peak, not collapsed
Filings peaked at 371 in 2019 and eased to 198 by 2024, a 22% decline over the 2021-2024 window. Recent-year momentum data shows several leading assignees filing zero or near-zero in the latest year, but publication lag means 2025-2026 counts will keep revising upward.
2024 is treated as the most recent complete filing year.
Claim density
71.4% G06F
of records carry this IPC subclass
Core compute and transmission claims are saturated
G06F and H04L together touch the large majority of records, meaning the foundational mechanics of measurement, storage and transport of attestation data are heavily claimed. Differentiated value now sits in the smaller subclasses — G06N, G09C, H04K — where filing density is under 1%.
Shares are of all 5,188 records; a record may carry multiple classes.
Collaboration
10 pairs
co-assignee pairings identified
Co-filing is rare and university-linked
Only ten co-assignee pairs appear in the dataset, the strongest linking Huawei with Wuhan University. Most other filings, including those from the largest corporate assignees, are filed solo rather than through joint ventures or research partnerships.
Counts reflect pairs identified across the full record set.
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Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to remote attestation protocols, with the prior art for and against each one.
Source: Patsnap Eureka. Co-assignee relationships and derived observations. Derived from a Patsnap search on Remote Attestation Protocols covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
Players
Who is filing, and where the room to move sits
The leading assignees cluster around platform and enclave vendors with deep TPM and virtualization portfolios; a wide field of smaller filers works the edges.
Leader
586 records
filings by the top-ranked assignee
Platform vendors anchor the top of the ranking
The leading assignee's filing volume is more than triple the fifth-placed company's 194 records, reflecting a portfolio built over years of TPM, enclave and cloud-platform integrity work rather than a single burst of filing.
Counted in patent families across the full ranking.
Momentum shift
-83% to -100%
YoY change among several leading filers
Leading filers have slowed sharply in the latest year
Several of the largest assignees show steep year-over-year declines in the most recent year, some down to zero filings. Given the publication lag, this likely overstates any real slowdown, but it is consistent with the broader 2021-2024 volume decline.
Recent-year figures are provisional pending further publication.
Geography
US 2,440 / EPO 729
leading receiving offices
Filing is concentrated in the US, with Europe and PCT next
The United States receives nearly half again as many filings as the next four offices combined, with EPO, WIPO/PCT, China and Germany forming a second tier. This shapes where enforcement risk and prior art density are highest.
Office counts are not mutually exclusive with family counts.
Recent-year filing momentum by assignee
| Assignee | Recent year | YoY |
|---|---|---|
| Microsoft Technology Licensing, LLC | 1 | -83% |
| Huawei Technologies Co., Ltd. | 1 | -86% |
| Intel Corporation | 0 | -100% |
| International Business Machines Corporation | 0 | — |
| Dell Products L.P. | 0 | -100% |
| Hewlett Packard Development Company, L.P. | 0 | — |
| Microsoft Corporation | 0 | — |
| Telefonaktiebolaget LM Ericsson (publ) | 0 | — |
Source: Patsnap Eureka. Assignee-level momentum. Derived from a Patsnap search on Remote Attestation Protocols covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
What's Next
Where to take this next
The dataset points to specific next steps depending on whether the goal is freedom-to-operate, portfolio building or competitive tracking.
Map claims against the under-claimed IPC branches
G06N, G09C and H04K sit below 1% of records despite growing relevance to AI-assisted verification and covert-channel resistance. A targeted claim search in these subclasses surfaces where genuine white space still exists.
Explore technology gaps in EurekaTrack momentum among the leading assignees
Several top filers show sharp year-over-year declines, but publication lag makes this provisional. Monitoring filing activity as 2025-2026 records complete will clarify whether this is a real pullback or a reporting artefact.
Set up assignee monitoring in EurekaAssess freedom-to-operate around the most-cited filings
The most-cited records concentrate citations on a handful of older filings tied to virtualization and blockchain-based attestation. Checking claim scope on these before filing in adjacent space reduces collision risk.
Run a citation analysis in EurekaSource: Patsnap Eureka. Forward-looking reading of the same dataset. Derived from a Patsnap search on Remote Attestation Protocols covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
FAQ
Frequently asked questions
Filing in this space is concentrated at the top: the five leading assignees together hold 34.5% of all 5,188 records in scope, and the leading ten hold 46.2%. The single leading assignee alone accounts for 586 records, more than three times the fifth-placed company's 194. Beyond the leading ten, however, filing spreads across a long tail of companies and individual filers with much smaller portfolios, so the field is not a two- or three-way contest despite the concentration at the top.
Filing peaked in 2019 at 371 records and eased to 198 by 2024, a 22% decline from the 255 filed in 2021. That said, patent publication typically lags filing by around 18 months, so the apparent drop-off in 2025 and 2026 numbers is partly an artefact of incomplete data rather than a confirmed slowdown. The fairer read is that the field has cooled from its 2019 peak but has not collapsed, and 2024 is the most recent year with a reasonably complete count.
Core digital data processing (IPC class G06F) appears on 71.4% of the 5,188 records, and digital information transmission (H04L) appears on 56.4%, making these the most heavily claimed areas by far. Wireless communication networks (H04W) and business-process applications (G06Q) form a distant second tier. Because a single record can carry multiple IPC classes, these shares add up to more than 100%, which is expected and simply reflects overlapping claim scope.
The technology composition data shows AI-based computing (G06N), ciphering and secret communication (G09C), and jamming/secret communication (H04K) each sit at or below 1% of the 5,188 records, despite AI-assisted verification and covert-channel resistance becoming more relevant to attestation design. These thin classes, alongside niche applications like vending and coin-freed apparatus (G07F), represent areas where claim space is comparatively open rather than already occupied by dense prior art.
Co-filing is uncommon in this dataset: only ten co-assignee pairs were identified across the full record set. The strongest pairing links Huawei with Wuhan University, followed by pairings involving Hewlett Packard's development arm and named individual inventors. Most filings, including those from the largest corporate assignees, are filed solely under a single company name rather than through joint ventures or academic partnerships.
Answers are grounded in the same dataset. Derived from a Patsnap search on Remote Attestation Protocols covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish.Run this in Eureka MCP
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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.