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CPC Subgroup Additional Only
C03B 2205/74

Means for moving at least a part of the draw furnace, e.g. by rotation or vertical or horizontal movement

Full Title

Fibre drawing or extruding details > Optical fibre draw furnaces > Means for moving at least a part of the draw furnace, e.g. by rotation or vertical or horizontal movement

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