CPC Main Group
C22C 47/00 Making alloys containing metallic or non-metallic fibres or filaments
6 direct subcodes
Child Classifications
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- C22C 47/02 Pretreatment of the fibres or filaments
- C22C 47/08 by contacting the fibres or filaments with molten metal, e.g. by infiltrating the fibres or filaments placed in a mould
- C22C 47/14 by powder metallurgy, i.e. by processing mixtures of metal powder and fibres or filaments
- C22C 47/16 by thermal spraying of the metal, e.g. plasma spraying
- C22C 47/20 by subjecting to pressure and heat an assembly comprising at least one metal layer or sheet and one layer of fibres or filaments
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