IPC Subgroup
C03C 25/62 by application of electric or wave energy; by particle radiation or ion implantation
Introduced: January 2000
Last revised: January 2018
Full Title
Surface treatment of fibres or filaments made from glass, minerals or slags > by application of electric or wave energy; by particle radiation or ion implantation
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- GLASS; MINERAL OR SLAG WOOL
- Subclass:
- CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
3 direct subcodes
Child Classifications
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- C03C 25/6206 Electromagnetic waves
- C03C 25/626 Particle radiation or ion implantation
- C03C 25/6293 Plasma or corona discharge
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