{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9842701","patent":{"patent_number":"US-9842701","title":"System and method for electret surface potential restoration by a directional pulsating electric field","assignee":null,"inventors":[],"filing_date":"2014-07-22T00:00:00.000Z","publication_date":"2017-12-12T00:00:00.000Z","cpc_codes":["H02M"],"num_claims":13,"abstract":"A system is disclosed for restoring a surface field potential of an electret material. An oscillator generates an oscillating output, and a power amplifier amplifies the oscillating output. A step-up transformer generates a high voltage alternating current output from the amplified oscillating output, and a polarity controller generates one of a positive pulsating output and a negative pulsating output from the high voltage alternating current output."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"System and method for electret surface potential restoration by a directional pulsating electric field","description":"A system is disclosed for restoring a surface field potential of an electret material. An oscillator generates an oscillating output, and a power amplifier amplifies the oscillating output. A step-up ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9842701","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-9842701","citation_suggestion":"Patentable. \"System and method for electret surface potential restoration by a directional pulsating electric field\" (US-9842701). https://patentable.app/patents/US-9842701","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9842701","json":"https://patentable.app/api/llm-context/US-9842701","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T08:34:10.603Z"}