CPC Subgroup Additional Only
C03B 2215/40 Product characteristics
Full Title
Press-moulding glass > Product characteristics
6 direct subcodes
Child Classifications
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- C03B 2215/404 Products with identification marks
- C03B 2215/406 Products comprising at least two different glasses
- C03B 2215/41 Profiled surfaces
- C03B 2215/44 Flat, parallel-faced disc or plate products
- C03B 2215/45 Ring or doughnut disc products or their preforms
- C03B 2215/46 Lenses, e.g. bi-convex
Top Applicants
Top 10 applicants by patent filingsfor 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