{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8475716","patent":{"patent_number":"US-8475716","title":"Chemical and biological sensors, systems and methods based on radio frequency identification","assignee":null,"inventors":[],"filing_date":"2012-10-18T00:00:00.000Z","publication_date":"2013-07-02T00:00:00.000Z","cpc_codes":["G06K","G01N","G06K","G01N"],"num_claims":18,"abstract":"An embodiment of the invention described herein is directed to a detection system utilizing at least one radiofrequency identification (RFID) sensor comprising: an RFID sensor comprising: a substrate; an antenna; a sensor material selected to be sensitive to one of chemical or biological environment; and a reader, wherein said reader is configured to measure a signal in the form of a complex impedance from said RFID tag wherein said signal comprises a plurality of frequencies and a frequency shift of the maximum of the imaginary part of the complex impedance, a frequency shift of the minimum of the imaginary part of the complex impedance, a frequency shift of the maximum of the real part of the complex impedance, and changes in magnitude of the real part of the complex impedance; and, wherein said complex impedance is related to a nature and a concentration of analyte species derived from multivariate analysis."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Chemical and biological sensors, systems and methods based on radio frequency identification","description":"An embodiment of the invention described herein is directed to a detection system utilizing at least one radiofrequency identification (RFID) sensor comprising: an RFID sensor comprising: a substrate;","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8475716","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-8475716","citation_suggestion":"Patentable. \"Chemical and biological sensors, systems and methods based on radio frequency identification\" (US-8475716). https://patentable.app/patents/US-8475716","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8475716","json":"https://patentable.app/api/llm-context/US-8475716","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T20:57:46.237Z"}