CPC Main Group
C03B 13/00 Rolling glass
Filing statistics
CPC C03B 13/00 belongs to the parent subclass C03B, which recorded 57,876 patent applications worldwide between 2013 and 2023. Annual filings grew from 4,190 in 2013 to 4,485 in 2023 (+7%), peaking at 6,433 applications in 2018. The most active applicants in class C03 are CORNING (9,559 applications), SAINT-GOBAIN GLASS (3,824 applications) and NIPPON ELECTRIC GLASS COMPANY (2,792 applications).
Source: EPO PATSTAT, worldwide filings
10 direct subcodes
Child Classifications
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- C03B 13/01 Rolling profiled glass articles
- C03B 13/02 Rolling non-patterned sheets discontinuously
- C03B 13/04 Rolling non-patterned sheets continuously
- C03B 13/06 Rolling corrugated sheets
- C03B 13/08 Rolling patterned sheets
- C03B 13/10 Rolling multi-layer sheets
- C03B 13/12 Rolling glass with enclosures, e.g. wire, or asbestos
- C03B 13/14 Rolling other articles
- C03B 13/16 Construction of the glass rollers
- C03B 13/18 Auxiliary means for rolling glass, e.g. sheet supports, gripping devices, hand-ladles, means for moving glass pots
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