CPC Subgroup
C03B 9/30 Details of blowing glass (for blowing with the mouth C03B9/02); Use of materials for the moulds
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
10 direct subcodes
Child Classifications
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- C03B 9/31 Blowing laminated glass articles or glass with enclosures, e.g. wires, bubbles
- C03B 9/32 Giving special shapes to parts of hollow glass articles
- C03B 9/34 Glass-blowing moulds not otherwise provided for
- C03B 9/36 Blow heads; Supplying, ejecting or controlling the air
- C03B 9/38 Means for cooling, heating, or insulating glass-blowing machines
- C03B 9/40 Gearing or controlling mechanisms specially adapted for glass-blowing machines
- C03B 9/42 Means for fusing, burning-off, or edge-melting combined with glass-blowing machines (uniting glass pieces by fusing C03B23/20)
- C03B 9/44 Means for discharging combined with glass-blowing machines, e.g. take-outs
- C03B 9/46 Means for cutting the hot glass in glass-blowing machines (burning-off C03B9/42)
- C03B 9/48 Use of materials for the moulds
Top Applicants
Top 10 applicants by patent filingsfor class C03, 2013–2023, worldwide · Source: EPO PATSTAT
- CORNING US 9,559
- SAINT-GOBAIN GLASS FR 3,824
- NIPPON ELECTRIC GLASS COMPANY JP 2,792
- SCHOTT DE 2,029
- AGC JP 1,938
- ASAHI GLASS COMPANY JP 1,679
- CORNING 1,650
- NIPPON ELECTRIC GLASS COMPANY 1,501
- A G C 1,049
- O-I (OWENS-ILLINOIS) US 1,027