{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9772431","patent":{"patent_number":"US-9772431","title":"Terahertz frequency tags and methods for their preparation and use","assignee":null,"inventors":[],"filing_date":"2013-05-07T00:00:00.000Z","publication_date":"2017-09-26T00:00:00.000Z","cpc_codes":["G06K","G06K","G06K","G06Q","G01N"],"num_claims":25,"abstract":"Embodiments described herein provide for terahertz tags and methods of making and using them. A tag may include a terahertz reflective material; and a saturated hygroscopic material positioned on the terahertz reflective material. A tag may include a terahertz reflective material; and an anhydrous hygroscopic material positioned on the terahertz reflective material. A humidity sensor may include a terahertz reflective material; and an anhydrous hygroscopic material positioned on the terahertz reflective material. A temperature sensor may include a terahertz reflective material; an anhydrous hygroscopic material positioned on the terahertz reflective material; and a polymer overlay having thermally controlled water permeability disposed on the anhydrous hygroscopic material. Some embodiments relate to a tag identification device configured to transmit an incident signal toward the tag, and to receive a reply signal from the tag in response to the incident signal."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Terahertz frequency tags and methods for their preparation and use","description":"Embodiments described herein provide for terahertz tags and methods of making and using them. A tag may include a terahertz reflective material; and a saturated hygroscopic material positioned on the ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9772431","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-9772431","citation_suggestion":"Patentable. \"Terahertz frequency tags and methods for their preparation and use\" (US-9772431). https://patentable.app/patents/US-9772431","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9772431","json":"https://patentable.app/api/llm-context/US-9772431","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:00:02.144Z"}