{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8517546","patent":{"patent_number":"US-8517546","title":"Multi-directional cube corner retroreflective article","assignee":null,"inventors":[],"filing_date":"2009-03-31T00:00:00.000Z","publication_date":"2013-08-27T00:00:00.000Z","cpc_codes":["G02F"],"num_claims":20,"abstract":"An object of the invention is to provide a multi-directional cube corner retroreflective article (may be referred to as a retroreflective article, hereinafter) capable of improving entrance angle characteristic and rotation angle characteristic.A multi-directional cube corner retroreflective article, wherein a large number of retroreflective element assemblies, each of which is formed by assembling triangular pyramidal cube corner retroreflective elements each having an isosceles-triangular base (ABC) and an element apex (H) while sharing an apex (C) and base lines of equal length (AC and BC) of the base, are connected, and a shape of an outer circumference of each of the retroreflective element assemblies is a regular polygon and the bases of at least two of the triangular pyramidal cube corner retroreflective elements are not parallel to a common plane including the outer circumference."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Multi-directional cube corner retroreflective article","description":"An object of the invention is to provide a multi-directional cube corner retroreflective article (may be referred to as a retroreflective article, hereinafter) capable of improving entrance angle char","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8517546","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-8517546","citation_suggestion":"Patentable. \"Multi-directional cube corner retroreflective article\" (US-8517546). https://patentable.app/patents/US-8517546","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8517546","json":"https://patentable.app/api/llm-context/US-8517546","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T19:46:54.666Z"}