CPC Subgroup
C03C 17/3673 Full Title
Surface treatment of glass, not in the form of fibres or filaments, by coating (optical coatings of optical elements G02B1/10) > with at least two coatings having different compositions (C03C17/44 takes precedence) > at least one coating being a metal
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