{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9816762","patent":{"patent_number":"US-9816762","title":"Heat exchanger having a passage pipe","assignee":null,"inventors":[],"filing_date":"2011-05-11T00:00:00.000Z","publication_date":"2017-11-14T00:00:00.000Z","cpc_codes":["H01L","H01L","H01L"],"num_claims":20,"abstract":"An inner fin is a wave fin having board portions extending in a pipe longitudinal direction and a top portion connecting the board portions located adjacent with each other. The wave fin has a wave-shaped cross-section perpendicularly intersecting a pipe longitudinal direction, and the board portion is bent into a waveform extending in the pipe longitudinal direction when seen from a pipe layering direction. A wave pitch WP [mm], a wave depth WD [mm], and a passage width H [mm] are set to satisfy relationships of 2.2≦WP/WD≦4.28 and 0.5≦WD/H≦1.8."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Heat exchanger having a passage pipe","description":"An inner fin is a wave fin having board portions extending in a pipe longitudinal direction and a top portion connecting the board portions located adjacent with each other. The wave fin has a wave-sh","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9816762","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-9816762","citation_suggestion":"Patentable. \"Heat exchanger having a passage pipe\" (US-9816762). https://patentable.app/patents/US-9816762","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9816762","json":"https://patentable.app/api/llm-context/US-9816762","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:19:55.834Z"}