{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11268376","patent":{"patent_number":"US-11268376","title":"Downhole safety switch and communication protocol","assignee":null,"inventors":[],"filing_date":"2019-03-27T00:00:00.000Z","publication_date":"2022-03-08T00:00:00.000Z","cpc_codes":["H04L","H04L"],"num_claims":16,"abstract":"A system includes a surface device, preferably positioned on a surface, a downhole device, and a wireline communications system. A downlink communication between the surface device and the downhole device occurs via Hopped Frequency Shift Keying (HFSK) voltage-modulated signals. An optional uplink communication between the downhole device and the surface device may occur via Frequency Shift Keying (FSK) current-modulated signals. The downhole device may comprise an addressable switch."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Downhole safety switch and communication protocol","description":"A system includes a surface device, preferably positioned on a surface, a downhole device, and a wireline communications system. A downlink communication between the surface device and the downhole de","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11268376","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-11268376","citation_suggestion":"Patentable. \"Downhole safety switch and communication protocol\" (US-11268376). https://patentable.app/patents/US-11268376","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11268376","json":"https://patentable.app/api/llm-context/US-11268376","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T18:01:58.234Z"}