{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11509172","patent":{"patent_number":"US-11509172","title":"Wireless charging system and associated methods","assignee":null,"inventors":[],"filing_date":"2020-11-06T00:00:00.000Z","publication_date":"2022-11-22T00:00:00.000Z","cpc_codes":["H02J","H02J","H02J","H02J","H02J","H02J"],"num_claims":20,"abstract":"A wireless charging system concurrently charges several wireless devices within a shielded chamber acting as a hollow electromagnetic waveguide. Electrically conductive walls of the chamber create transverse modes that support longitudinal propagation of the electromagnetic field along the waveguide with no diminution of the energy flux density due to the inverse-square law. A transmitting antenna located inside the chamber emits an electromagnetic field that excites one or more transverse modes of the waveguide. An absorptive lid absorbs the electromagnetic field to minimize reflections that could excite longitudinal modes. Each wireless device includes a whisker antenna that receives part of the electromagnetic field for charging a battery. Due to the spatial uniformity of the electromagnetic field, the wireless devices charge with high efficiency regardless of their positions, ensuring they all charge at a similar rate."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Wireless charging system and associated methods","description":"A wireless charging system concurrently charges several wireless devices within a shielded chamber acting as a hollow electromagnetic waveguide. Electrically conductive walls of the chamber create tra","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11509172","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-11509172","citation_suggestion":"Patentable. \"Wireless charging system and associated methods\" (US-11509172). https://patentable.app/patents/US-11509172","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11509172","json":"https://patentable.app/api/llm-context/US-11509172","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T08:38:23.036Z"}