{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9749735","patent":{"patent_number":"US-9749735","title":"Waveguide","assignee":null,"inventors":[],"filing_date":"2016-07-06T00:00:00.000Z","publication_date":"2017-08-29T00:00:00.000Z","cpc_codes":["H04R","H04R","H04R"],"num_claims":21,"abstract":"A waveguide for conducting sound that is generated by a loudspeaker that is acoustically coupled to the waveguide. There is a duct with an external wall, an interior opening circumscribed by the wall, and an outlet, and an air-adsorbent structure coupled to an inside of the external wall of the duct such that the air adsorbent structure lines at least a portion of the wall. The apparent volume ratio of the air adsorbent structure is at least about 1.5."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Waveguide","description":"A waveguide for conducting sound that is generated by a loudspeaker that is acoustically coupled to the waveguide. There is a duct with an external wall, an interior opening circumscribed by the wall,","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9749735","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-9749735","citation_suggestion":"Patentable. \"Waveguide\" (US-9749735). https://patentable.app/patents/US-9749735","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9749735","json":"https://patentable.app/api/llm-context/US-9749735","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:21:35.317Z"}