CPC Subgroup Additional Only
C03B 2211/40 using oxy-fuel burners
Full Title
Heating processes for glass melting in glass melting furnaces > using oxy-fuel burners
1 direct subcode
Child Classifications
Navigate with arrow keys, Enter to open
- C03B 2211/60 oxy-fuel burner construction
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