{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9820023","patent":{"patent_number":"US-9820023","title":"Loudspeaker system with improved sound","assignee":null,"inventors":[],"filing_date":"2015-06-03T00:00:00.000Z","publication_date":"2017-11-14T00:00:00.000Z","cpc_codes":["H04R","H04R","H04R","H04R","H04R","H04R"],"num_claims":33,"abstract":"A loudspeaker device is presented which includes a zeolite material comprising zeolite particles having a silicon to aluminum mass ratio of at least 200. For an increased pore fraction of pores with a diameter in a range between 0.7 micrometer and 30 micrometer shows an increased shift of the resonance frequency down to lower frequencies has been observed."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Loudspeaker system with improved sound","description":"A loudspeaker device is presented which includes a zeolite material comprising zeolite particles having a silicon to aluminum mass ratio of at least 200. For an increased pore fraction of pores with a","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9820023","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-9820023","citation_suggestion":"Patentable. \"Loudspeaker system with improved sound\" (US-9820023). https://patentable.app/patents/US-9820023","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9820023","json":"https://patentable.app/api/llm-context/US-9820023","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:31:09.432Z"}