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CPC Subgroup
C03B 7/02

Forehearths, i.e. feeder channels

Full Title

Distributors for the molten glass; Means for taking-off charges of molten glass; Producing the gob > Forehearths, i.e. feeder channels

2 direct subcodes

Child Classifications

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  • C03B 7/04 Revolving forehearths

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