With 1,587 Sustainable Transportation related patents published between 2002 and 2022, Hitachi Ltd holds the most number of Sustainable Transportation patents in the global Construction sector, of which 82.6% was contributed by its subsidiary Hitachi Construction Machinery Co Ltd.
The second largest number of Sustainable Transportation related patents were published by Komatsu Ltd with 992 patents. The third largest number of Sustainable Transportation related patents were published by General Electric Co with 632 patents. The fourth largest number of Sustainable Transportation related patents were published by Sumitomo Heavy Industries Ltd with 493 patents. The fifth largest number of Sustainable Transportation related patents were published by Kobe Steel Ltd with 352 patents, of which 87.8% was contributed by its subsidiary Kobelco Construction Machinery Co Ltd.
The top five patent holders, i.e., Hitachi Ltd, Komatsu Ltd, General Electric Co, Sumitomo Heavy Industries Ltd, and Kobe Steel Ltd, together held 4,056 Sustainable Transportation patents during the period.
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