{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9762540","patent":{"patent_number":"US-9762540","title":"Policy based content filtering","assignee":null,"inventors":[],"filing_date":"2015-07-04T00:00:00.000Z","publication_date":"2017-09-12T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L","H04L"],"num_claims":16,"abstract":"Methods and systems for processing application-level content of network service protocols are described. According to one embodiment, a network connection is received at a networking subsystem of a firewall. The connection is characterized by a source IP address, a destination IP address and a network service protocol. The network service protocol of the network connection is determined. A matching firewall policy is identified for the connection. When the connection is allowed, it is redirected to a proxy module that is configured to support the network service protocol. A content processing configuration scheme identified by the matching firewall policy is retrieved that includes multiple content processing configuration settings, specifying whether a particular type of content filtering is to be performed, for each of multiple network service protocols. Application-level content of a packet stream associated with the network connection is reconstructed and filtered based on the applicable content processing configuration settings."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Policy based content filtering","description":"Methods and systems for processing application-level content of network service protocols are described. According to one embodiment, a network connection is received at a networking subsystem of a fi","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9762540","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-9762540","citation_suggestion":"Patentable. \"Policy based content filtering\" (US-9762540). https://patentable.app/patents/US-9762540","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9762540","json":"https://patentable.app/api/llm-context/US-9762540","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T03:51:50.298Z"}