{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11468720","patent":{"patent_number":"US-11468720","title":"Wearable misplacement","assignee":null,"inventors":[],"filing_date":"2020-06-08T00:00:00.000Z","publication_date":"2022-10-11T00:00:00.000Z","cpc_codes":["G07C","G06F","G07C","G07C","G07C","G07C","H04B","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04W","H04W","H04W","H04W","H04W","G06F","G06V","G07C","G07C","H04L","H04W","H04W","H04W","H04W","H04W","H04W"],"num_claims":20,"abstract":"An access control system is described in which a primary credential device has a master key and a secondary credential device has a key derived from the master key. Both the master key and the derivative key are required to gain access to the resource protected by the access control system. If the secondary credential device is lost, misplaced, or stolen, it cannot be used to gain illicit access to the protected resource, and it can be easily replaced by providing a different secondary credential device with another key derived from the master key."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Wearable misplacement","description":"An access control system is described in which a primary credential device has a master key and a secondary credential device has a key derived from the master key. Both the master key and the derivat","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11468720","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-11468720","citation_suggestion":"Patentable. \"Wearable misplacement\" (US-11468720). https://patentable.app/patents/US-11468720","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11468720","json":"https://patentable.app/api/llm-context/US-11468720","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T14:36:33.928Z"}