{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9820164","patent":{"patent_number":"US-9820164","title":"Subterranean system comprising wireless communication network and syntactic foam panels","assignee":null,"inventors":[],"filing_date":"2015-07-24T00:00:00.000Z","publication_date":"2017-11-14T00:00:00.000Z","cpc_codes":["H04W","H04B","H04W"],"num_claims":24,"abstract":"A subterranean system including a tunnel network, a plurality of syntactic foam panels, and a wireless communications network is disclosed. The wireless communications network comprises a plurality of wireless transceivers positioned throughout the tunnel network. The wireless communication range defined by communicatively coupled transceivers is a function of signal strength attenuation in a wireless signal traveling between the communicatively coupled transceivers. The tunnel network comprises tunnel support structure that contributes to the signal strength attenuation and a plurality of support apertures formed in the tunnel support structure. The syntactic foam panels are secured to the tunnel support structure to cover at least some of the support apertures and the composition and configuration of the syntactic foam panels are such that the panels do not make a significant contribution to the signal strength attenuation between communicatively coupled transceivers."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Subterranean system comprising wireless communication network and syntactic foam panels","description":"A subterranean system including a tunnel network, a plurality of syntactic foam panels, and a wireless communications network is disclosed. The wireless communications network comprises a plurality of","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9820164","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-9820164","citation_suggestion":"Patentable. \"Subterranean system comprising wireless communication network and syntactic foam panels\" (US-9820164). https://patentable.app/patents/US-9820164","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9820164","json":"https://patentable.app/api/llm-context/US-9820164","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:46:35.860Z"}