IPC Subgroup
C03B 7/08 Feeder spouts, e.g. gob feeders
Introduced: January 1980
Last revised: January 2006
Full Title
Distributors for the molten glass; Means for taking-off charges of molten glass; Producing the gob > Feeder spouts, e.g. gob feeders
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
7 direct subcodes
Child Classifications
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- C03B 7/082 Pneumatic feeders
- C03B 7/084 Tube mechanisms
- C03B 7/086 Plunger mechanisms
- C03B 7/088 Outlets, e.g. orifice rings
- C03B 7/09 Spout blocks
- C03B 7/092 Stirring devices; Homogenisation
- C03B 7/094 Means for heating, cooling or insulation
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