{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8483866","patent":{"patent_number":"US-8483866","title":"Automated materials handling system having multiple categories of overhead buffers","assignee":null,"inventors":[],"filing_date":"2009-04-30T00:00:00.000Z","publication_date":"2013-07-09T00:00:00.000Z","cpc_codes":["H01L","H01L"],"num_claims":19,"abstract":"An automated materials handling system comprises a plurality of overhead hoist buffers (OHBs) for receiving a plurality of semiconductor wafer carriers. Each OHB is assigned to a respective one of a plurality of categories. Each wafer carrier is associated with one or more of the plurality of categories. Each respective category is associated with at least one of a plurality of event trigger types. An overhead transport (OHT) if provided for transporting each of the plurality of wafer carriers to a respective one of the OHBs in response to a respective trigger event. Each trigger event has one of the plurality of event trigger types. Each wafer carrier is stored in a respective one of the plurality of OHBs assigned to a respective one of the categories associated with the respective event trigger type of the trigger event causing that wafer carrier to be transported and stored."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Automated materials handling system having multiple categories of overhead buffers","description":"An automated materials handling system comprises a plurality of overhead hoist buffers (OHBs) for receiving a plurality of semiconductor wafer carriers. Each OHB is assigned to a respective one of a p","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8483866","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-8483866","citation_suggestion":"Patentable. \"Automated materials handling system having multiple categories of overhead buffers\" (US-8483866). https://patentable.app/patents/US-8483866","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8483866","json":"https://patentable.app/api/llm-context/US-8483866","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T12:45:12.132Z"}