IPC Main Group
C03B 7/00 Distributors for the molten glass; Means for taking-off charges of molten glass; Producing the gob
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- GLASS; MINERAL OR SLAG WOOL
- Subclass:
- MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL; SUPPLEMENTARY PROCESSES IN THE MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL
Related Keywords
DISCHARGING of glass furnaces
8 direct subcodes
Child Classifications
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- C03B 7/01 Means for taking-off charges of molten glass
- C03B 7/02 Forehearths, i.e. feeder channels
- C03B 7/08 Feeder spouts, e.g. gob feeders
- C03B 7/1 Cutting-off the glass flow with the aid of knives or scissors; Construction of the blades used
- C03B 7/14 Transferring molten glass or gobs to glass blowing or pressing machines
- C03B 7/18 Suction feeders
- C03B 7/2 Scoop feeders
- C03B 7/22 Gathering-devices in the form of rods or pipes
Top Applicants
Top 10 applicants by patent filingsfor 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