{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9618839","patent":{"patent_number":"US-9618839","title":"Surface relief microstructures, related devices and method of making them","assignee":null,"inventors":[],"filing_date":"2010-02-15T00:00:00.000Z","publication_date":"2017-04-11T00:00:00.000Z","cpc_codes":["B82Y","G02F","G11B"],"num_claims":24,"abstract":"The present invention relates to a method for the replication of a patterned surface relief microstructure, comprising the steps of generation of a first layer with a patterned surface relief microstructure, generation of a master, by copying the microstructure of the first layer into a second layer, thereby involving at least one dry or wet etching step, characterized by an additional step, in which the microstructure of the master is brought into contact with a replica material, such that the microstructure of the master is reproduced in the replica.The invention further relates to the elements made as a replica according to the method.The surface relief microstructures are suitable to display images with a positive-negative and/or color image flip. The elements according to the invention are particularly useful for securing documents and articles against counterfeiting and falsification."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Surface relief microstructures, related devices and method of making them","description":"The present invention relates to a method for the replication of a patterned surface relief microstructure, comprising the steps of generation of a first layer with a patterned surface relief microstr","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9618839","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-9618839","citation_suggestion":"Patentable. \"Surface relief microstructures, related devices and method of making them\" (US-9618839). https://patentable.app/patents/US-9618839","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9618839","json":"https://patentable.app/api/llm-context/US-9618839","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:39:27.443Z"}