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CPC Subgroup Additional Only
C03B 2201/88

Chalcohalide glasses, i.e. containing one or more of S, Se, Te and one or more of F, Cl, Br, I

Full Title

Type of glass produced > Non-oxide glasses or glass-type compositions > Chalcohalide glasses, i.e. containing one or more of S, Se, Te and one or more of F, Cl, Br, I

Top Applicants

Top 10 applicants by patent filingsfor class C03, 2013–2023, worldwide · Source: EPO PATSTAT

  1. CORNING US 9,559
  2. SAINT-GOBAIN GLASS FR 3,824
  3. NIPPON ELECTRIC GLASS COMPANY JP 2,792
  4. SCHOTT DE 2,029
  5. AGC JP 1,938
  6. ASAHI GLASS COMPANY JP 1,679
  7. CORNING 1,650
  8. NIPPON ELECTRIC GLASS COMPANY 1,501
  9. A G C 1,049
  10. O-I (OWENS-ILLINOIS) US 1,027