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CPC Subgroup Additional Only
C21B 2400/054

Disc-shaped or conical parts for cooling, dispersing or atomising of molten slag rotating along vertical axis

Full Title

Treatment of slags originating from iron or steel processes > Apparatus features > including rotating parts > Disc-shaped or conical parts for cooling, dispersing or atomising of molten slag rotating along vertical axis

Top Applicants

Top 10 applicants by patent filingsfor class C21, 2013–2023, worldwide · Source: EPO PATSTAT

  1. JFE STEEL JP 8,270
  2. NIPPON STEEL CORPORATION JP 5,222
  3. POSCO (POHANG IRON AND STEEL COMPANY) KR 4,824
  4. JFE STEEL 3,311
  5. ARCELORMITTAL LU 3,239
  6. NSSMC (NIPPON STEEL & SUMITOMO METAL) JP 2,659
  7. HYUNDAI STEEL COMPANY KR 1,492
  8. ANGANG STEEL COMPANY 1,318
  9. BAOSHAN IRON & STEEL COMPANY 1,233
  10. KOBE STEEL JP 1,228