IPC Main Group
C03B 33/00 Severing cooled glass
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
CUTTING glasscutting GLASS
6 direct subcodes
Child Classifications
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- C03B 33/02 Cutting or splitting sheet glass; Apparatus or machines therefor
- C03B 33/06 Cutting or splitting glass tubes, rods, or hollow products
- C03B 33/07 Cutting armoured or laminated glass products
- C03B 33/08 by fusing
- C03B 33/09 by thermal shock
- C03B 33/1 Glass-cutting tools, e.g. scoring tools
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