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DIFF Subgroup
C03B 9/31

Blowing laminated glass articles or glass with enclosures, e.g. wires, bubbles

Introduced: January 1990

Full Title

Full titles differ between systems:

IPC:

Blowing glass; Production of hollow glass articles > Details of blowing glass; Use of materials for the moulds > Blowing laminated glass articles or glass with enclosures, e.g. wires, bubbles

CPC:

Blowing glass; Production of hollow glass articles > Details of blowing glass (for blowing with the mouth C03B9/02); Use of materials for the moulds > Blowing laminated glass articles or glass with enclosures, e.g. wires, bubbles

No child classifications to compare. This is a leaf node in both IPC and CPC.

Top Applicants

Top Applicants (IPC)

Class C03,2013–2023, worldwide · Source: EPO PATSTAT

  1. CORNING US 8,800
  2. SAINT-GOBAIN GLASS FR 3,535
  3. NIPPON ELECTRIC GLASS COMPANY JP 2,675
  4. NIPPON ELECTRIC GLASS COMPANY 2,616
  5. AGC JP 1,911
  6. SCHOTT DE 1,846
  7. ASAHI GLASS COMPANY JP 1,632
  8. CORNING 1,556
  9. A G C 1,250
  10. SEKISUI CHEMICAL COMPANY JP 1,087

Top Applicants (CPC)

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