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CPC Subgroup
C03B 9/32

Giving special shapes to parts of hollow glass articles

Full Title

Blowing glass; Production of hollow glass articles > Details of blowing glass (for blowing with the mouth C03B9/02); Use of materials for the moulds > Giving special shapes to parts of hollow glass articles

3 direct subcodes

Child Classifications

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  • C03B 9/325 Forming screw-threads or lips at the mouth of hollow glass articles; Neck moulds
  • C03B 9/33 Making hollow glass articles with feet or projections; Moulds therefor
  • C03B 9/335 Forming bottoms to blown hollow glass articles; Bottom moulds

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