{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9683972","patent":{"patent_number":"US-9683972","title":"Method and device for examining a sheet-shaped or card-shaped valuable document having a security feature having one or more cavities","assignee":null,"inventors":[],"filing_date":"2012-10-25T00:00:00.000Z","publication_date":"2017-06-20T00:00:00.000Z","cpc_codes":["G01N","G01N","G01N","G01N","G01N"],"num_claims":20,"abstract":"A method is for examining a sheet-shaped or card-shaped value document with a security feature having one or more cavities configured in the value document. The width of the cavity or cavities is in at least one respectively specified direction exceeding 10 μm. Transmission values are established in a locally resolved manner for the transmission of ultrasound in a specified frequency range. In employing the transmission values, it is checked whether a specified number of transmission values is greater than a specified transmission threshold value."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and device for examining a sheet-shaped or card-shaped valuable document having a security feature having one or more cavities","description":"A method is for examining a sheet-shaped or card-shaped value document with a security feature having one or more cavities configured in the value document. The width of the cavity or cavities is in a","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9683972","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-9683972","citation_suggestion":"Patentable. \"Method and device for examining a sheet-shaped or card-shaped valuable document having a security feature having one or more cavities\" (US-9683972). https://patentable.app/patents/US-9683972","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9683972","json":"https://patentable.app/api/llm-context/US-9683972","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:15:55.786Z"}