{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11301566","patent":{"patent_number":"US-11301566","title":"Firmware anti-rollback","assignee":null,"inventors":[],"filing_date":"2019-07-03T00:00:00.000Z","publication_date":"2022-04-12T00:00:00.000Z","cpc_codes":["G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F"],"num_claims":25,"abstract":"A platform security processor is booted and reads a set of write-once memory bits to obtain a minimum security patch level (SPL). The security processor then verifies that a table SPL for a firmware security table is greater than or equal to the minimum SPL. The firmware security table includes a plurality of firmware identifiers for firmware code modules, and a plurality of check SPL values each associated with respective one of the firmware identifiers. The security processor verifies SPL values in a plurality of firmware code modules by, for each firmware code module, accessing the module to obtain its firmware SPL value and check if the respective firmware SPL value is equal to or greater than a respective check SPL value in the firmware security table."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Firmware anti-rollback","description":"A platform security processor is booted and reads a set of write-once memory bits to obtain a minimum security patch level (SPL). The security processor then verifies that a table SPL for a firmware s","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11301566","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-11301566","citation_suggestion":"Patentable. \"Firmware anti-rollback\" (US-11301566). https://patentable.app/patents/US-11301566","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11301566","json":"https://patentable.app/api/llm-context/US-11301566","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T09:36:21.643Z"}