{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9709516","patent":{"patent_number":"US-9709516","title":"Impedance-based bacterial detection system","assignee":null,"inventors":[],"filing_date":"2013-02-14T00:00:00.000Z","publication_date":"2017-07-18T00:00:00.000Z","cpc_codes":["G01N","C12Q","G01N","G01N"],"num_claims":14,"abstract":"A method and apparatus for determining the presence or absence of microorganisms in a liquid sample. A vessel with an electrode disposed therein receives a volume of liquid to be tested. A second electrode is also provided, both electrodes in physical contact with the liquid sample. A time varying signal is applied to one electrode, and the other electrode is coupled to a phase sensitive signal detector. The phase sensitive signal detector determines a frequency at which an out of phase signal amplitude is zero. This zero-crossing frequency is used as a baseline, and changes in the zero-crossing frequency are an indication of microbial growth."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Impedance-based bacterial detection system","description":"A method and apparatus for determining the presence or absence of microorganisms in a liquid sample. A vessel with an electrode disposed therein receives a volume of liquid to be tested. A second elec","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9709516","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-9709516","citation_suggestion":"Patentable. \"Impedance-based bacterial detection system\" (US-9709516). https://patentable.app/patents/US-9709516","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9709516","json":"https://patentable.app/api/llm-context/US-9709516","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:35:53.626Z"}