{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9819662","patent":{"patent_number":"US-9819662","title":"Authentication using a transaction history","assignee":null,"inventors":[],"filing_date":"2014-05-19T00:00:00.000Z","publication_date":"2017-11-14T00:00:00.000Z","cpc_codes":["H04L","G06Q","G06Q","G06Q"],"num_claims":20,"abstract":"Systems and methods are provided for authenticating a user. In one implementation, a computer-implemented method is provided. According to the method, transaction history information for each one of a set of users is maintained in a storage device. The method provides identifiers associated with items for display and receives, from one of the users, a selection of one or more of the identifiers. The method further authenticates the user as a function of the selection and a transaction history of the user."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Authentication using a transaction history","description":"Systems and methods are provided for authenticating a user. In one implementation, a computer-implemented method is provided. According to the method, transaction history information for each one of a","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9819662","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-9819662","citation_suggestion":"Patentable. \"Authentication using a transaction history\" (US-9819662). https://patentable.app/patents/US-9819662","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9819662","json":"https://patentable.app/api/llm-context/US-9819662","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T14:44:57.284Z"}