{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9654494","patent":{"patent_number":"US-9654494","title":"Detecting and marking client devices","assignee":null,"inventors":[],"filing_date":"2014-04-10T00:00:00.000Z","publication_date":"2017-05-16T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L","H04L","H04L","H04L"],"num_claims":18,"abstract":"Methods, apparatus, connection systems, and client devices are described. The apparatus receives a multiplicity of DNS query messages from multiple client devices. For each received DNS query message to a malware domain name or a particular domain name, the apparatus sends a marker DNS response message to the corresponding client device for use in detecting whether the client device is infected with malware or is accessing the particular domain name. The connection system receives a connection request from a client device of the multiple client devices for access to the communication network, and sends marker detection information to the client device for use in identifying whether client device is marked as infected with malware or accessing a particular domain name. It is determined whether the client device is infected with malware or accessed the particular domain name. The client device may be blocked or granted access to the communication network."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Detecting and marking client devices","description":"Methods, apparatus, connection systems, and client devices are described. The apparatus receives a multiplicity of DNS query messages from multiple client devices. For each received DNS query message ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9654494","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-9654494","citation_suggestion":"Patentable. \"Detecting and marking client devices\" (US-9654494). https://patentable.app/patents/US-9654494","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9654494","json":"https://patentable.app/api/llm-context/US-9654494","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T14:40:41.654Z"}