With 539 patents published between 2002 and 2022, Sandvik AB holds the most number of patents in the Mining sector in the North America region.
The second largest number of patents were published by Komatsu Ltd with 493 related patents, of which 67.3% was contributed by its subsidiary Joy Global Underground Mining, LLC. The third largest number of patents were published by Kennametal Inc with 352 related patents. The fourth largest number of patents were published by Caterpillar Inc with 344 related patents, of which 57.8% was contributed by its subsidiary Caterpillar Global Mining Europe GmbH. The fifth largest number of patents were published by Sumitomo Electric Industries Ltd with 225 related patents, of which 70.7% was contributed by its subsidiary SUMITOMO ELECTRIC HARDMETAL CORP..
The top five patent holders, i.e., Sandvik AB, Komatsu Ltd, Kennametal Inc, Caterpillar Inc, and Sumitomo Electric Industries Ltd, together held 1,953 patents during the period.
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