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IPC Subgroup
C22C 47/08

by contacting the fibres or filaments with molten metal, e.g. by infiltrating the fibres or filaments placed in a mould

Introduced: January 2000

Last revised: January 2006

Full Title

Making alloys containing metallic or non-metallic fibres or filaments > by contacting the fibres or filaments with molten metal, e.g. by infiltrating the fibres or filaments placed in a mould

Classification Context

Section:
CHEMISTRY; METALLURGY
Class:
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
Subclass:
ALLOYS

2 direct subcodes

Child Classifications

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  • C22C 47/1 Infiltration in the presence of a reactive atmosphere; Reactive infiltration
  • C22C 47/12 Infiltration or casting under mechanical pressure

Top Applicants

Top 10 applicants by patent filingsfor class C22, 2013–2023, worldwide · Source: EPO PATSTAT

  1. JFE STEEL JP 7,152
  2. NIPPON STEEL CORPORATION JP 5,416
  3. POSCO (POHANG IRON AND STEEL COMPANY) KR 4,530
  4. JFE STEEL 3,986
  5. CENTRAL SOUTH UNIVERSITY 3,086
  6. NSSMC (NIPPON STEEL & SUMITOMO METAL) JP 2,843
  7. CHINESE ACADEMY OF SCIENCES 2,702
  8. ARCELORMITTAL LU 2,124
  9. NSSMC (NIPPON STEEL & SUMITOMO METAL) 2,075
  10. KOBE STEEL JP 1,891