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Mining companies filing the most patents in Q1 2021 (source: GlobalData)

Assignee Filings
JFE Holdings Inc 387
Kobe Steel Ltd 194
Hitachi Ltd 190
POSCO 168
Baoshan Iron & Steel Co Ltd 148
Mitsubishi Group 90
ArcelorMittal SA 67
Jinchuan Group Co Ltd 65
Mitsui Mining & Smelting Co Ltd 38
SASAC 35

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