{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11485674","patent":{"patent_number":"US-11485674","title":"Glasses having high fracture toughness","assignee":null,"inventors":[],"filing_date":"2019-03-29T00:00:00.000Z","publication_date":"2022-11-01T00:00:00.000Z","cpc_codes":["G02F","G02F"],"num_claims":37,"abstract":"A glass composition includes: 50 mol % to 69 mol % SiO2; 12.5 mol % to 25 mol % Al2O3; 0 mol % to 8 mol % B2O3; greater than 0 mol % to 4 mol % CaO; greater than 0 mol % to 17.5 mol % MgO; 0.5 mol % to 8 mol % Na2O; 0 mol % to 2.5 mol % La2O3; and greater than 8 mol % to 18 mol % Li2O, wherein (Li2O+Na2O+MgO)/Al2O3 is from 0.9 to less than 1.3; and Al2O3+MgO+Li2O+ZrO2+La2O3+Y2O3 is from greater than 23 mol % to less than 50 mol %. The glass composition may be characterized by at least one of the following: a K1C value measured by a chevron short bar method of at least 0.75; and a K1C value measured by a double torsion method of at least 0.8. The glass composition is chemically strengthenable. The glass composition may be used in a glass article or a consumer electronic product."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Glasses having high fracture toughness","description":"A glass composition includes: 50 mol % to 69 mol % SiO2; 12.5 mol % to 25 mol % Al2O3; 0 mol % to 8 mol % B2O3; greater than 0 mol % to 4 mol % CaO; greater than 0 mol % to 17.5 mol % MgO; 0.5 mol % t","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11485674","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-11485674","citation_suggestion":"Patentable. \"Glasses having high fracture toughness\" (US-11485674). https://patentable.app/patents/US-11485674","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11485674","json":"https://patentable.app/api/llm-context/US-11485674","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T05:12:31.334Z"}