CPC Subgroup
C03B 37/0756 Full Title
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)
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