CPC Subgroup
C22C 47/02 Pretreatment of the fibres or filaments
Full Title
Making alloys containing metallic or non-metallic fibres or filaments > Pretreatment of the fibres or filaments
3 direct subcodes
Child Classifications
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- C22C 47/04 by coating, e.g. with a protective or activated covering
- C22C 47/06 by forming the fibres or filaments into a preformed structure, e.g. using a temporary binder to form a mat-like element
Top Applicants
Top 10 applicants by patent filingsfor class C22, 2013–2023, worldwide · Source: EPO PATSTAT
- JFE STEEL JP 7,620
- NIPPON STEEL CORPORATION JP 5,769
- POSCO (POHANG IRON AND STEEL COMPANY) KR 4,523
- JFE STEEL 3,080
- NSSMC (NIPPON STEEL & SUMITOMO METAL) JP 2,999
- ARCELORMITTAL LU 2,962
- CENTRAL SOUTH UNIVERSITY 2,431
- KOBE STEEL JP 2,100
- CHINESE ACADEMY OF SCIENCES 2,052
- MITSUBISHI MATERIALS CORPORATION JP 1,405