{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9600808","patent":{"patent_number":"US-9600808","title":"Secure payment card, method and system","assignee":null,"inventors":[],"filing_date":"2012-06-22T00:00:00.000Z","publication_date":"2017-03-21T00:00:00.000Z","cpc_codes":["G06Q","G06Q","G06Q","G06Q","G06Q","H04M","H04N","H04M"],"num_claims":28,"abstract":"A payment card system uses a static payment card identifying number and generates, for each attempted transaction, an authentication cryptogram based at least upon a seed value stored within the payment card and further based upon a temporal signal value that changes for each attempted use of the payment card. The authentication cryptogram may be alpha-numerically encoded, preferably using a radix-32 coding to provide 5-bits of information for each character or symbol, and may be communicated in a 26-character payment card account name field instead of communicating a payment account name in said payment card account name field, to thus convey up to 130-bits of information while maintaining compatibility with existing point-of-sale equipment and payment system infrastructure."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Secure payment card, method and system","description":"A payment card system uses a static payment card identifying number and generates, for each attempted transaction, an authentication cryptogram based at least upon a seed value stored within the payme","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9600808","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-9600808","citation_suggestion":"Patentable. \"Secure payment card, method and system\" (US-9600808). https://patentable.app/patents/US-9600808","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9600808","json":"https://patentable.app/api/llm-context/US-9600808","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T07:01:05.955Z"}