Coating

Introduced: January 2000

Last revised: January 2018

Full Title

Surface treatment of fibres or filaments made from glass, minerals or slags > Coating

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

Filing statistics

IPC C03C 25/1 belongs to the parent subclass C03C, which recorded 106,119 patent applications worldwide between 2013 and 2023. Annual filings grew from 8,013 in 2013 to 8,692 in 2023 (+8%), peaking at 11,106 applications in 2018. The most active applicants in class C03 are CORNING (8,800 applications), SAINT-GOBAIN GLASS (3,535 applications) and NIPPON ELECTRIC GLASS COMPANY (2,675 applications).

Source: EPO PATSTAT, worldwide filings

Related Keywords

COATING fibres or filaments formed from glass, minerals, or slagscoating glass FIBREScoating glass fibres to obtain OPTICAL(LY) fibres

8 direct subcodes

Child Classifications

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C03C 25/1025 to obtain fibres used for reinforcing cement-based products
C03C 25/104 to obtain optical fibres
C03C 25/1095 to obtain coated fabrics
C03C 25/12 General methods of coating; Devices therefor
C03C 25/24 Coatings containing organic materials
C03C 25/42 Coatings containing inorganic materials
C03C 25/465 Coatings containing composite materials
C03C 25/48 with two or more coatings having different compositions

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