{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9840109","patent":{"patent_number":"US-9840109","title":"Engineered surface for providing low friction and improved comfort on devices that contact the skin or other external tissue of the user","assignee":null,"inventors":[],"filing_date":"2013-01-09T00:00:00.000Z","publication_date":"2017-12-12T00:00:00.000Z","cpc_codes":["A61B","H04R","H04R"],"num_claims":11,"abstract":"An apparatus structured to contact external tissue, such as skin, of a user includes an elastomeric contacting portion that is structured to directly engage the external tissue. The contacting portion has an engineered surface (64A, 64B) that includes a plurality of non-random, predesigned surface features (70, 74B, 76B, 78B) designed to reduce friction and improve user comfort. In one implementation, the pitch (P) between each immediately adjacent pair of the surface features (70, 76B) is less than or equal to a predetermined maximum pitch value, and the height (H) of each of the surface features (70, 76B) is less than or equal to a predetermined maximum height value."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Engineered surface for providing low friction and improved comfort on devices that contact the skin or other external tissue of the user","description":"An apparatus structured to contact external tissue, such as skin, of a user includes an elastomeric contacting portion that is structured to directly engage the external tissue. The contacting portion","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9840109","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-9840109","citation_suggestion":"Patentable. \"Engineered surface for providing low friction and improved comfort on devices that contact the skin or other external tissue of the user\" (US-9840109). https://patentable.app/patents/US-9840109","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9840109","json":"https://patentable.app/api/llm-context/US-9840109","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T04:56:26.113Z"}