With 282 patents held between 2002 and 2022, Hitachi Ltd holds the most number of Sustainable Transportation patents in the Construction sector in the North America region, of which 84.8% was contributed by Hitachi Construction Machinery Co Ltd.
The second largest number of patents were held by Komatsu Ltd with 243 Sustainable Transportation patents. The third largest number of patents were held by General Electric Co with 231 Sustainable Transportation patents. The fourth largest number of patents were held by Sumitomo Heavy Industries Ltd with 108 Sustainable Transportation patents. The fifth largest number of patents were held by Caterpillar Inc with 96 Sustainable Transportation patents.
The top five patents holders, i.e., Hitachi Ltd, Komatsu Ltd, General Electric Co, Sumitomo Heavy Industries Ltd, and Caterpillar Inc, together held 960 Sustainable Transportation patents during the period.
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