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

Introduced: January 1980

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

IPC and CPC are identically structured here. All 1 subcodes exist in both systems.

IPC defines codes here since 1980.

Child Classifications

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C03B 18/22 Controlling or regulating the temperature of the atmosphere above the float tank since 1980 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

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

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

Top Applicants (CPC)

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