CPC Subgroup Additional Only
C03B 2215/46 Lenses, e.g. bi-convex
Full Title
Press-moulding glass > Product characteristics > Lenses, e.g. bi-convex
3 direct subcodes
Child Classifications
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- C03B 2215/47 Bi-concave
- C03B 2215/48 Convex-concave
- C03B 2215/49 Complex forms not covered by groups C03B2215/47 or C03B2215/48
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