{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9746450","patent":{"patent_number":"US-9746450","title":"Online gas chromatograph operation with reduced usage of calibration gas","assignee":null,"inventors":[],"filing_date":"2014-09-26T00:00:00.000Z","publication_date":"2017-08-29T00:00:00.000Z","cpc_codes":["G01N","G01N","G01N","G01N"],"num_claims":8,"abstract":"An online gas chromatograph is provided. The online gas chromatograph includes a sample inlet and at least one chromatographic column operably coupled to the sample inlet. At least one valve is interposed between the sample inlet and the at least one chromatographic column. A detector is fluidically coupled to the at least one chromatographic column. A controller is coupled to the detector and to the at least one valve, the controller is configured to control flow from the sample inlet through the chromatograph using the at least one valve. The controller is configured to generate a plurality of sequential calibration cycles, where each calibration cycle has a calibration gas purge operation. The first calibration gas purge operation lasts longer than the second calibration gas purge operation."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Online gas chromatograph operation with reduced usage of calibration gas","description":"An online gas chromatograph is provided. The online gas chromatograph includes a sample inlet and at least one chromatographic column operably coupled to the sample inlet. At least one valve is interp","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9746450","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-9746450","citation_suggestion":"Patentable. \"Online gas chromatograph operation with reduced usage of calibration gas\" (US-9746450). https://patentable.app/patents/US-9746450","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9746450","json":"https://patentable.app/api/llm-context/US-9746450","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T15:32:03.042Z"}