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CPC Main Group
C03B 37/00

Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags

6 direct subcodes

Child Classifications

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  • C03B 37/005 Manufacture of flakes
  • C03B 37/07 Controlling or regulating ( ; controlling or regulating in general G05)

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