With 3,191 patents published between 2002 and 2022, Caterpillar Inc holds the most number of patents in the Construction sector in United States.
The second largest number of patents were published by Komatsu Ltd with 2,159 related patents. The third largest number of patents were published by Otis Worldwide Corp with 1,922 related patents, of which 99.5% was contributed by its subsidiary Otis Elevator Company (United States). The fourth largest number of patents were published by Hitachi Ltd with 1,527 related patents, of which 73.7% was contributed by its subsidiary Hitachi Construction Machinery Co Ltd. The fifth largest number of patents were published by Deere & Co with 1,431 related patents.
The top five patent holders, i.e., Caterpillar Inc, Komatsu Ltd, Otis Worldwide Corp, Hitachi Ltd, and Deere & Co, together held 10,230 patents during the period.
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