{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9827809","patent":{"patent_number":"US-9827809","title":"Digital pen with enhanced educational feedback","assignee":null,"inventors":[],"filing_date":"2014-05-21T00:00:00.000Z","publication_date":"2017-11-28T00:00:00.000Z","cpc_codes":["G09B","G09B","G09B","G09B","G09B","G09B","G09B","H01L","H01L","H01L"],"num_claims":17,"abstract":"Disclosed is a digital pen that tracks the user's writing and provides useful feedback based on the user's writing. In one embodiment, the pen may provide feedback when the user has written a misspelled word, invalid mathematical expression, or any noncompliant expression. The pen may also provide feedback relating to the user's handwriting. The feedback may be visual, auditory, or tactile, and may be realtime or delayed. Statistics relating to the user's performance may be tracked, uploaded to external devices, and shared with others. This allows the user and interested parties to track the user's progress over time. The disclosed pen will be useful in educational settings."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Digital pen with enhanced educational feedback","description":"Disclosed is a digital pen that tracks the user's writing and provides useful feedback based on the user's writing. In one embodiment, the pen may provide feedback when the user has written a misspell","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9827809","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-9827809","citation_suggestion":"Patentable. \"Digital pen with enhanced educational feedback\" (US-9827809). https://patentable.app/patents/US-9827809","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9827809","json":"https://patentable.app/api/llm-context/US-9827809","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:59:55.872Z"}