<img src="https://ml.globenewswire.com/Resource/Download/4071513d-3f7c-4a38-a055-8da38cfb60df?size=2" nborder="0" align="left" hspace="5" vspace="5" title="SEAL LOGO.png" alt="SEALSQ"/>Divisional Grant Strengthens Leadership in Semiconductor-Embedded, Physically Authenticated Digital AssetsGeneva, Switzerland, June 16, 2026 (GLOBE NEWSWIRE) -- SEALSQ Secures European Patent for "Back-to-Physical" NFT Technology Enabling Trusted Semiconductor Authentication SEALSQ Corp (NASDAQ: LAES) ("SEALSQ" or the "Company"), a leader in Semiconductors, PKI, Post-Quantum technology, and secure digital identity solutions, today announced that the European Patent Office (EPO) has granted a divisional patent covering the core "Back-to-Physical" claims of its foundational NFT invention. The newly granted claims are specifically designed for provisioning Non-Fungible Tokens (NFTs) directly into semiconductors, creating a tamper-proof, hardware-rooted connection between digital assets and physical chips. This breakthrough enables NFTs to be permanently and verifiably anchored to secure silicon, establishing an immutable chain of provenance, authenticity, ownership, and lifecycle management for semiconductor components deployed in critical infrastructure and high-value industries. "I am pleased to announce that the EPO has granted this divisional patent relating to the ‘Back-to-Physical’ claims of our NFT patent," said Jean Pierre Enguent, CTO of SEALSQ. "These claims are particularly applicable to NFTs being provisioned into semiconductors and represent a significant milestone in our strategy to fuse digital and physical trust at the silicon level. By embedding digital identities directly into chips, we are enabling a new generation of trusted devices capable of proving their authenticity, origin, ownership, and operational integrity throughout their entire lifecycle." Bridging the Digital and Physical Worlds While NFTs are traditionally associated with digital art and virtual assets, SEALSQ's patented innovation extends the concept into the physical world by enabling each semiconductor to carry a unique, cryptographically secured NFT linked to its manufacturing, certification, ownership, and operational history. This "Back-to-Physical" capability transforms semiconductors into self-authenticating digital assets that can be independently verified anywhere in the world without relying on centralized databases. Strategic Use Cases The patent opens significant commercial opportunities across multiple industries: Semiconductor Supply Chain Authentication Counterfeit semiconductors represent a growing threat to global supply chains. By embedding NFTs directly into chips during manufacturing, every component can carry a verifiable digital passport proving: <ul type="disc"><li>Manufacturing origin</li><li>Wafer and production batch information</li><li>Testing and certification records</li><li>Authorized distribution channels</li><li>Ownership history </li></ul> This capability is particularly valuable for defense, aerospace, automotive, and industrial systems where counterfeit components can have catastrophic consequences. Automotive Digital Identity and Compliance Modern vehicles contain thousands of semiconductors. NFT-enabled chips can provide: <ul type="disc"><li>Component-level traceability</li><li>Authentic spare-part verification</li><li>Software update authorization</li><li>Vehicle digital twins</li><li>Battery passport compliance</li><li>Carbon footprint and sustainability tracking</li></ul> This technology aligns with emerging regulatory requirements in Europe and other jurisdictions for digital product passports. Aerospace and Defense Systems Mission-critical aerospace and defense electronics require absolute trust and traceability. NFT-provisioned semiconductors can enable: <ul type="disc"><li>Secure chain-of-custody tracking</li><li>Anti-counterfeiting protection</li><li>Maintenance and certification records</li><li>Secure component replacement verification</li><li>Export-control compliance validation </li></ul> Medical Devices and Healthcare Medical devices increasingly depend on connected electronics and AI-enabled systems. SEALSQ's technology can provide: <ul type="disc"><li>Verification of genuine medical components</li><li>Secure tracking of implantable devices</li><li>Regulatory compliance records</li><li>Device lifecycle management</li><li>Trusted software and firmware provenance </li></ul> Industrial IoT and Smart Infrastructure As billions of IoT devices are deployed worldwide, establishing trust becomes essential. NFT-enabled semiconductors can allow: <ul type="disc"><li>Device identity verification</li><li>Ownership transfer management</li><li>Trusted machine-to-machine transactions</li><li>Secure onboarding of connected devices</li><li>Autonomous service and maintenance records </li></ul> Satellite and Space Infrastructure For satellite constellations and space systems, secure component traceability is becoming a strategic requirement. Applications include: <ul type="disc"><li>Authentication of satellite electronics</li><li>Secure management of space assets</li><li>Tracking of component provenance</li><li>Trusted communication between satellites</li><li>Autonomous orbital asset management </li></ul> AI Agents and Machine Economies The patent also supports emerging machine-to-machine economic ecosystems. By linking NFTs to semiconductors embedded in intelligent devices, autonomous AI systems can: <ul type="disc"><li>Verify device authenticity</li><li>Establish trusted identities</li><li>Own and transfer digital assets</li><li>Participate in decentralized economic networks</li><li>Execute cryptographically secure transactions </li></ul> This capability is particularly relevant to SEALSQ's vision of secure autonomous ecosystems powered by AI, blockchain, and post-quantum technologies. Foundation for Digital Product Passports The patented technology provides a powerful foundation for the creation of Digital Product Passports (DPPs), an area expected to become mandatory across numerous industries under emerging European regulations. Each semiconductor can effectively become its own digital passport, securely recording: <ul type="disc"><li>Origin</li><li>Manufacturing history</li><li>Compliance certifications</li><li>Ownership transfers</li><li>Repair and maintenance records</li><li>End-of-life recycling information</li></ul> Quantum-Resistant Digital-Physical Trust Combined with SEALSQ's post-quantum cryptographic technologies and Root-of-Trust semiconductors, the patent establishes a framework for long-term digital-physical trust capable of resisting future quantum computing threats. By integrating NFT-based authentication, PKI infrastructure, secure hardware, and post-quantum cryptography, SEALSQ is creating a next-generation trust architecture for the emerging Machine Economy and the Internet of Trusted Things. In addition to the granted EPO divisional patent, a corresponding USPTO application remains pending, and a further EPO divisional application is also under examination. SEALSQ will provide updates as additional patents are granted. Patent Portfolio Summary <table style="border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; border-collapse: collapse; width:100%; border-collapse:collapse ;"><tr><td style="border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">Jurisdiction</td><td style="border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">Identifier</td><td style="border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">Status</td><td style="border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">Notes</td></tr><tr><td style="border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">CH (Priority)</td><td style="border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">CH 070467/2021</td><td style="border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">Filed</td><td style="border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">Priority filing for the NFT invention (Oct 29, 2021)</td></tr><tr><td style="border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">US</td><td style="border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">US 17/514,296 → US 2023/0139878 A1</td><td style="border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">Pending</td><td style="border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">U.S. counterpart</td></tr><tr><td style="border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">EP</td><td style="border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">EP 22200142.2 → EP 4174706 A1</td><td style="border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">Published</td><td style="border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">European counterpart (May 3, 2023)</td></tr></table> Links <ul type="disc"><li>EPO Granted Divisional Patent: <a href="https://www.globenewswire.com/Tracker?data=ceo1JnYQLq9qlpV__HmbefPu8iSWc4PioGErDQNLnuB1tjh7lMqCmVo8w-WYeL2F0IwLZUm5tDI67RXXfqo5LSGnASclirflKHUlRXncCix6QyVDfmRI8A-ssJ7Cnjjv1C8KuUpxgqSougXHMBF7LBJGtur02WVeFevq-LNpGK1ZvCmN7ivZyIiGVFJaiyRs" rel="nofollow" target="_blank" title="">https://register.epo.org/application?number=EP26164472</a></li><li>USPTO Application: <a href="https://www.globenewswire.com/Tracker?data=ceo1JnYQLq9qlpV__HmbeXNY6Vh5ax-SfJUtxkVfdQgPbvOSWha3ngWXHvv7rSZ3W1IsZjr9WqgAf6DYedxRUbd5ojjpyPoxhmnb4jwQ3PdkUOgtlpdk68OJQVE7wW8Kvn4aBLsxf6-ds4jAeS5ImUpBQWC30Wvj2XzTpayqASL1YHSKZhX5YgD7mbEZUj0Qt0YMKYHCwtThb5cxtL_ZZoXHUnL6MUr6XU5YuEIq84a08oJ17KJyUg6z8KPu1_WK9ARu1AQ-60ffezq1lJ5mjg==" rel="nofollow" target="_blank" title="">https://assignmentcenter.uspto.gov/search/patent/abstract%3FapplicationNumber%3D17514296</a></li></ul> An overview detailing the “Back-to-Physical” aspects of the patent is available upon request. This latest patent grant reinforces SEALSQ’s commitment to pioneering secure, quantum-resistant digital-physical convergence and further expands the company’s intellectual property portfolio in post-quantum cryptography, Root-of-Trust semiconductors, and authenticated digital assets. About SEALSQ: SEALSQ is a leading innovator in Post-Quantum Technology hardware and software solutions. Our technology seamlessly integrates Semiconductors, PKI (Public Key Infrastructure), and Provisioning Services, with a strategic emphasis on developing state-of-the-art Quantum Resistant Cryptography and Semiconductors designed to address the urgent security challenges posed by quantum computing. As quantum computers advance, traditional cryptographic methods like RSA and Elliptic Curve Cryptography (ECC) are increasingly vulnerable. SEALSQ is pioneering the development of Post-Quantum Semiconductors that provide robust, future-proof protection for sensitive data across a wide range of applications, including Multi-Factor Authentication tokens, Smart Energy, Medical and Healthcare Systems, Defense, IT Network Infrastructure, Automotive, and Industrial Automation and Control Systems. By embedding Post-Quantum Cryptography into our semiconductor solutions, SEALSQ ensures that organizations stay protected against quantum threats. Our products are engineered to safeguard critical systems, enhancing resilience and security across diverse industries. For more information on our Post-Quantum Semiconductors and security solutions, please visit <a href="https://www.globenewswire.com/Tracker?data=LRef7PJsLE-7-zQ_g69PPBalg9V1JOe9FDKdIuHpfiYNea32vMLPxb3HZKZSF-dWEVMBsXaTIeIVNz3pnXgt5g==" rel="nofollow" target="_blank" title="www.sealsq.com">www.sealsq.com</a>. Forward-Looking Statements This communication expressly or implicitly contains certain forward-looking statements concerning SEALSQ Corp and its businesses. Forward-looking statements include statements regarding our business strategy, financial performance, results of operations, market data, events or developments that we expect or anticipate will occur in the future, as well as any other statements which are not historical facts. Although we believe that the expectations reflected in such forward-looking statements are reasonable, no assurance can be given that such expectations will prove to have been correct. These statements involve known and unknown risks and are based upon a number of assumptions and estimates which are inherently subject to significant uncertainties and contingencies, many of which are beyond our control. Actual results may differ materially from those expressed or implied by such forward-looking statements. Important factors that, in our view, could cause actual results to differ materially from those discussed in the forward-looking statements include SEALSQ's ability to continue beneficial transactions with material parties, including a limited number of significant customers; market demand and semiconductor industry conditions; and the risks discussed in SEALSQ's filings with the SEC. Risks and uncertainties are further described in reports filed by SEALSQ with the SEC. SEALSQ Corp is providing this communication as of this date and does not undertake to update any forward-looking statements contained herein as a result of new information, future events or otherwise. <table style="border-collapse: collapse; width:100%; border-collapse:collapse ;"><tr><td style="vertical-align: top ; ">SEALSQ Corp. Carlos Moreira Chairman &amp; CEO Tel: +41 22 594 3000 <a href="mailto:info@sealsq.com" rel="nofollow" target="_blank" title="info@sealsq.com">info@sealsq.com</a> </td><td style="vertical-align: top ; ">SEALSQ Investor Relations (US) The Equity Group Inc. Lena Cati Tel: +1 212 836-9611 <a href="mailto:lena.cati@equityny.com" rel="nofollow" target="_blank" title="lena.cati@theequitygroup.com">lena.cati@theequitygroup.com</a> </td></tr></table> <img alt="" src='https://ml.globenewswire.com/media/YzFkZTEzNDMtODU2YS00NzBkLTljZjEtYmE3MGQ2YzFjNWY1LTEyNjY0MDUtMjAyNi0wNi0xNi1lbg==/tiny/SEAL-Semiconductors.png' referrerpolicy='no-referrer-when-downgrade' />

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SEALSQ Secures Patent for Breakthrough “Back-to-Physical” NFT Technology

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