Hardware Enclave Architectures Patents: Who Leads, Trends 2026
Hardware Enclave Architecture Patents: Filing Trends and Who Holds the Claim Space
58.7% concentration. The top five assignees alone account for 2,261 of the 3,851 records in scope — a field where claim space near the core enclave and attestation mechanisms is already crowded. Published filings moved from 285 in 2017 to a peak of 612 in 2021, then fell to 219 by 2024 — a 64% decline across that three-year window. 2025 and 2026 figures (38 published so far in 2026) will rise as later filings publish; treat the last two years as incomplete rather than as evidence of a continued drop.
- 1INTEL CORP28.9%
- 2MICROSOFT TECHNOLOGY LICENSING LLC13.7%
- 3ALIPAY (HANGZHOU) INFORMATION TECH CO LTD6.5%
- 4ANT BLOCKCHAIN TECHNOLOGY (SHANGHAI) CO LTD4.8%
- 5ANTCHAIN TECHNOLOGY PTE LTD4.8%
See the full hardware enclave architectures analysis in Eureka
- The complete ranking, not just the top five
- Every IPC branch with its share of the corpus
- The most-cited records, and where claim space is still thin
Common questions about hardware enclave patents
Who holds the most patents on hardware enclave and trusted execution environment technology?
One assignee leads the ranked field with 1,114 of the 3,851 records in scope, well ahead of the fifth-placed filer at 183 records. The top five assignees combined hold 58.7% of all records, and the top ten hold 72.1%, so the field is concentrated among a small number of silicon and platform vendors rather than spread evenly. Application-layer filers in payments and blockchain also appear in the ranking but hold materially smaller shares than the platform leaders.
Are hardware enclave patent filings still growing?
Published filings peaked at 612 in 2021 and had fallen to 219 by 2024, a 64% decline over that span. Because patent publication typically lags filing by around 18 months, the lower counts shown for 2025 and 2026 are still incomplete and should not be read as continued decline. Taken together, the trend through the last complete year points to a maturing core mechanism rather than an actively expanding land grab.
What technology areas overlap most with hardware enclave patents?
Electric digital data processing (G06F) appears on 72.7% of the 3,851 records in scope, and digital information transmission (H04L) appears on 48.0%, reflecting that most filings claim enclaves as system or networking inventions rather than as discrete hardware. Business and commerce data processing (G06Q) shows up on 12.2% of records, largely from payments and blockchain applicants building on top of enclave primitives. AI-related classes remain comparatively small, which is one indicator of where newer claim activity might still land.
Disclaimer. This analysis is based on Patsnap Eureka data drawn from a limited snapshot of global patent records and is provided for general information and reference only. Patent data carries inherent limitations — recent filings are under-counted because of publication lag, counts may be on a record or family basis, classification and applicant-name data may contain errors or duplicates, and the underlying search query defines the scope shown — so the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing here is an exhaustive prior-art, novelty, freedom-to-operate or validity search, nor does it constitute legal, financial or professional advice, and it should not be relied upon as such. Verify independently and review with qualified patent and legal professionals before acting on it.
Method: Filing trend and technology composition. Derived from a Patsnap search on Hardware Enclave Architectures covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish. Every share divides by all records in scope. Data: Patsnap Eureka. See the full landscape report.