{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8511552","patent":{"patent_number":"US-8511552","title":"Card credential method and system","assignee":null,"inventors":[],"filing_date":"2011-11-30T00:00:00.000Z","publication_date":"2013-08-20T00:00:00.000Z","cpc_codes":["G07F","G06Q","G06Q","G06Q","G07C","G07C","G07C","G07C"],"num_claims":18,"abstract":"In one implementation, a method for providing access to a secure facility includes authenticating the user; generating a card credential, transmitting the card credential to an access card carried by of the user, and transmitting the card key to the access card in a form that is usable by the access card. The generating the card credential includes encrypting the card key using a server encryption key. The card key is usable for a challenge-response interaction during subsequent access requests by the user."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Card credential method and system","description":"In one implementation, a method for providing access to a secure facility includes authenticating the user; generating a card credential, transmitting the card credential to an access card carried by ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8511552","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-8511552","citation_suggestion":"Patentable. \"Card credential method and system\" (US-8511552). https://patentable.app/patents/US-8511552","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8511552","json":"https://patentable.app/api/llm-context/US-8511552","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T19:33:59.564Z"}