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CPC Subgroup
C03B 18/20

Composition of the atmosphere above the float bath; Treating or purifying the atmosphere above the float bath

Full Title

Shaping glass in contact with the surface of a liquid > Forming sheets > Composition of the atmosphere above the float bath; Treating or purifying the atmosphere above the float bath

1 direct subcode

Child Classifications

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  • C03B 18/22 Controlling or regulating the temperature of the atmosphere above the float tank

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