CPC Subgroup
C03C 25/48 with two or more coatings having different compositions
Full Title
Surface treatment of fibres or filaments made from glass, minerals or slags > Coating > with two or more coatings having different compositions
3 direct subcodes
Child Classifications
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- C03C 25/50 Coatings containing organic materials only
- C03C 25/52 Coatings containing inorganic materials only
- C03C 25/54 Combinations of one or more coatings containing organic materials only with one or more coatings containing inorganic materials only
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