SEALSQ Secures European Patent for ‘Back-to-Physical’ NFT-Enabled Semiconductor Authentication
LAES•SEALSQ has received a divisional patent from the European Patent Office covering core 'Back-to-Physical' NFT claims that embed tamper-proof, hardware-rooted digital identities directly into semiconductors. The patent opens commercial applications in defense, aerospace, automotive traceability and medical device authentication while its U.S. counterpart remains pending.
1. EPO Divisional Patent Grant
SEALSQ has been granted a divisional patent by the European Patent Office covering the core 'Back-to-Physical' claims of its foundational NFT invention. This patent specifically covers methods for provisioning NFTs directly into semiconductor chips, creating an immutable, hardware-rooted link between digital assets and physical devices.
2. Technology Overview
The ‘Back-to-Physical’ NFT technology embeds cryptographically secured tokens into chip silicon at manufacturing, enabling each semiconductor to carry a unique digital identity for provenance, authenticity, ownership, and lifecycle management without reliance on centralized databases.
3. Strategic Applications
The patent unlocks commercial use cases across defense, aerospace, automotive traceability, medical device authentication, IoT device onboarding, and satellite component tracking by providing tamper-proof supply chain verification and secure chain-of-custody for high-value industries.
4. Patent Portfolio Status
In addition to the EPO divisional grant, SEALSQ’s corresponding USPTO application remains pending and further EPO divisional applications are under examination, reinforcing the company’s expanding intellectual property footprint in secure digital-physical convergence.




