{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8534123","patent":{"patent_number":"US-8534123","title":"Engine air filter replacement indication system","assignee":null,"inventors":[],"filing_date":"2011-06-15T00:00:00.000Z","publication_date":"2013-09-17T00:00:00.000Z","cpc_codes":["G07C"],"num_claims":24,"abstract":"Disclosed are methods and systems for monitoring and indicating the optimal replacement interval for a filter. In particular, the methods and systems may be utilized for monitoring and indicating the optimal replacement interval of an air filter in an internal combustion engine based on parameters that include air filter plugging rate data, engine duty cycle data, pressure drop across the air filter, penalty on fuel consumption, and the cost of air filter replacement."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Engine air filter replacement indication system","description":"Disclosed are methods and systems for monitoring and indicating the optimal replacement interval for a filter. In particular, the methods and systems may be utilized for monitoring and indicating the ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8534123","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-8534123","citation_suggestion":"Patentable. \"Engine air filter replacement indication system\" (US-8534123). https://patentable.app/patents/US-8534123","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8534123","json":"https://patentable.app/api/llm-context/US-8534123","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T17:29:05.325Z"}