C03B 37/075 Manufacture of fibres or filaments consisting of different sorts of glass or characterised by shape, e.g. undulated fibres (C03B37/022, C03B37/027, C03B37/028 take precedence; light guides G02B6/00)
Introduced: January 1980
Title
Titles differ between systems:
IPC: Manufacture of fibres or filaments consisting of different sorts of glass or characterised by shape, e.g. hollow fibres, undulated fibres
CPC: Manufacture of fibres or filaments consisting of different sorts of glass or characterised by shape, e.g. undulated fibres (C03B37/022, C03B37/027, C03B37/028 take precedence; light guides G02B6/00)
Full Title
Full titles differ between systems:
Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags > Manufacture of fibres or filaments consisting of different sorts of glass or characterised by shape, e.g. hollow fibres, undulated fibres
Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags > Manufacture of fibres or filaments consisting of different sorts of glass or characterised by shape, e.g. undulated fibres (C03B37/022, C03B37/027, C03B37/028 take precedence; light guides G02B6/00)
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.
Child Classifications
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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