IPC Main Group
C03B 37/00 Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- GLASS; MINERAL OR SLAG WOOL
- Subclass:
- MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL; SUPPLEMENTARY PROCESSES IN THE MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL
Related Keywords
manufacture of fibresobtaining FIBRES or filaments from glass, minerals or slagspreparing FLAKES from glass, minerals or slagsGLASS woolOPTICAL(LY) fibrespreparation of SLAG woolglass WOOL; slag WOOL
6 direct subcodes
Child Classifications
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- C03B 37/005 Manufacture of flakes
- C03B 37/01 Manufacture of glass fibres or filaments
- C03B 37/07 Controlling or regulating
- C03B 37/075 Manufacture of fibres or filaments consisting of different sorts of glass or characterised by shape, e.g. hollow fibres, undulated fibres
- C03B 37/08 Bushings; Spinnerettes; Nozzles or nozzle plates
- C03B 37/1 Non-chemical treatment
Top Applicants
Top 10 applicants by patent filingsfor 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