Coating

Full Title

Surface treatment of fibres or filaments made from glass, minerals or slags > Coating

Filing statistics

CPC C03C 25/10 belongs to the parent subclass C03C, which recorded 95,236 patent applications worldwide between 2013 and 2023. Annual filings grew from 6,471 in 2013 to 7,112 in 2023 (+10%), peaking at 10,632 applications in 2018. The most active applicants in class C03 are CORNING (9,559 applications), SAINT-GOBAIN GLASS (3,824 applications) and NIPPON ELECTRIC GLASS COMPANY (2,792 applications).

Source: EPO PATSTAT, worldwide filings

8 direct subcodes

Child Classifications

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C03C 25/1025 to obtain fibres used for reinforcing cement-based products
C03C 25/104 to obtain optical fibres
C03C 25/1095 to obtain coated fabrics
C03C 25/12 General methods of coating; Devices therefor
C03C 25/24 Coatings containing organic materials
C03C 25/42 Coatings containing inorganic materials
C03C 25/465 Coatings containing composite materials
C03C 25/48 with two or more coatings having different compositions

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