C03C 17/00 Surface treatment of glass, not in the form of fibres or filaments, by coating (optical coatings of optical elements G02B1/10)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Surface treatment of glass, e.g. of devitrified glass, not in the form of fibres or filaments, by coating
CPC: Surface treatment of glass, not in the form of fibres or filaments, by coating (optical coatings of optical elements G02B1/10)
Full Title
Full titles differ between systems:
Surface treatment of glass, e.g. of devitrified glass, not in the form of fibres or filaments, by coating
Surface treatment of glass, not in the form of fibres or filaments, by coating (optical coatings of optical elements G02B1/10)
Of 8 combined children, 6 exist in both systems.
2 codes are CPC-only extensions.
5 shared codes have differing titles between IPC and CPC.
Child Classifications
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- C03C 17/22 with other inorganic material (C03C17/34, C03C17/44 take precedence) +1 CPC IPC+CPC Available in IPC and CPC
- C03C 17/28 with organic material (C03C17/34, C03C17/44 take precedence) IPC+CPC Available in IPC and CPC
- C03C 17/34 with at least two coatings having different compositions (C03C17/44 takes precedence) since 1980 +2 CPC IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class C03,2013–2023, worldwide · Source: EPO PATSTAT
- CORNING US 8,800
- SAINT-GOBAIN GLASS FR 3,535
- NIPPON ELECTRIC GLASS COMPANY JP 2,675
- NIPPON ELECTRIC GLASS COMPANY 2,616
- AGC JP 1,911
- SCHOTT DE 1,846
- ASAHI GLASS COMPANY JP 1,632
- CORNING 1,556
- A G C 1,250
- SEKISUI CHEMICAL COMPANY JP 1,087
Top Applicants (CPC)
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